tag:blogger.com,1999:blog-92059917343694493802024-03-08T02:21:47.806-08:00Centrala nuclearăCentrala nuclearahttp://www.blogger.com/profile/15767642958983614323noreply@blogger.comBlogger8125tag:blogger.com,1999:blog-9205991734369449380.post-26639106852879928432012-02-25T00:22:00.001-08:002012-02-25T00:22:29.012-08:00Fotografii<img src="http://www.figliefamiglia.it/wp-content/uploads/2011/03/Art.-1.png" /><img src="http://www.dailyblog.it/wp-content/uploads/2011/03/centrale-nucleare-italia-referendum.jpg" />
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<img src="http://www.energeia.ro/wp-content/uploads/2008/05/centrale-nucleare0.jpg" />Centrala nuclearahttp://www.blogger.com/profile/15767642958983614323noreply@blogger.com0tag:blogger.com,1999:blog-9205991734369449380.post-32268762781121827092012-02-25T00:17:00.003-08:002012-02-25T00:17:37.177-08:00<br />
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Bulgaria: Personalul centralei nucleare Kozlodui, evacuat partial dupa o crestere a nivelului radiatiilor</h1>
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de <a href="http://www.hotnews.ro/articole_autor/Catalina%20Ciociltan" rel="nofollow" style="border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; color: black; text-decoration: none;">Catalina Ciociltan</a> <span class="sursa" style="font-weight: bold;">HotNews.ro</span></div>
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<span class="data" style="font-size: 10px;">Miercuri, 27 aprilie 2011, 21:03</span> <span class="categoria" style="color: #253888; font-size: 10px;"><a class="atual" href="http://www.hotnews.ro/international" style="border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; color: #747474; text-decoration: none;" title="Actualitate | Internaţional">Actualitate | Internaţional</a></span></div>
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Centrala nucleara de la Kozlodui, Bulgaria</div>
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<img alt="" height="0" src="http://www.hotnews.ro/pageCount.htm?type=read&articleId=8558706" style="border-bottom-width: 0px; border-color: initial; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-style: initial; border-top-width: 0px;" width="0" /> <strong>Personalul reactorului 5 al centralei nucleare Kozlodui din Bulgaria a fost evacuat, marti, dupa ce a fost detectata o crestere a nivelului radiatiilor gazelor rare. Evacuarea a avut loc in jurul orei 10:45 marti si a fost revocata inainte de orele 18, atunci cand situatia s-a normalizat, a anuntat managementul centralei. Incidentul nu a cauzat nicio pagauba, relateaza </strong><a href="http://www.novinite.com/view_news.php?id=127703" rel="nofollow" style="border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; color: #253888; font-weight: bold; text-decoration: none;" target="Alta pagina">Novinite</a><strong>.</strong><br style="font-weight: bold;" /><br />Incidentul s-a produs dupa repunerea in functiune a reactorului 5, care a fost inchis pentru reparatii anuale pe 24 aprilie, unde s-a inregistrat un nivel crescut de radiatii, din cauza unei concentratii crescute de izotopi xenon (Xe-133). Radiatiile gamma din zona ermetica a reactorului au depasit cu 10% limita admisa.<br /><br />Toti angajatii centralei care se aflau in zona au fost testati, rezultatele indicand ca niciunul dintre ei nu a fost expus la radiatii peste limita normala. Sectiunile din afara zonei ermetice au fost de asemenea, monitorizate insa nu a fost inregistrata nicio crestere semnificativa a nivelului de radiatii, evaluat in urma incidentului la 0 pe scara INES.<br /><br />In prezent, centrala Kozlodui dispune de reactoarele 5 si 6 de 1000 mw, dupa ce guvernul bulgar a decis inchiderea a patru reactoare cu o putere de 440 mw fiecare la solicitarea UE, in cadrul negocierilor de aderare la UE.<br /><br />Incidentul de la centrala nucleara Kozlodui vine dupa ce Wikileaks a dezvaluit o telegrama a Ambasadei americane la Sofia, care sustine ca sefii centralei nuclare au fost amenintati ca vor fi concediati daca nu pastreaza tacerea in privinta unui incident care a avut loc la data de 1 martie 2006.<br /><br />Sistemele de protectie ale reactorului numarului 5 de la centrala nucleara de la Kozlodui, folosite pentru inchiderea centralei in caz de urgenta, au fost inoperabile in urma unei pene electrice survenite la 1 martie. Desi Agentia Internationala pentru Energie Atomica (AIEA) a catalogat incidentul ca fiind relativ minor, guvernul bulgar nu a dat detalii legate de cauza incidentului.</div>
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Scurgere radioactivă la centrala nucleară Fukushima</h1>
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<b style="color: #333333; font-family: Arial, Helvetica, sans-serif; line-height: 21px;">Aproximativ 8,5 tone de apă radioactivă s-au scurs dintr-un reactor al centralei nucleare nipone Fukushima Daiichi, avariată de seismul din martie 2011, dar lichidul nu a părăsit incinta reactorului, anunţă agenţia Kyodo.</b>
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Scurgere radioactivă la centrala nucleară Fukushima (Imagine: Mediafax Foto/AFP)</div>
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<span style="border-bottom-style: none; border-color: initial; border-image: initial; border-left-style: none; border-right-style: none; border-top-style: none; border-width: initial; cursor: auto; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; position: static;">Operatorul centralei, Tokyo Electric Power Company (TEPCO), a comunicat că scurgerea a avut <span style="border-bottom-color: rgb(192, 209, 254); border-bottom-style: solid; border-bottom-width: 1px; border-color: initial; border-image: initial; border-left-style: none; border-right-style: none; border-top-style: none; border-width: initial; color: rgb(4, 148, 225) !important; cursor: pointer; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; position: static;">loc</span> la Reactorul 4. Problema a fost descoperită marţi seara şi a fost rezolvată rapid.</span></div>
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Accidentul de la Fukushima Daiichi, produs în urma cutremurului şi tsunamiului din martie 2011, este cel mai grav dezastru nuclear după cel de la Cernobîl (Ucraina), în 1986.</div>
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<span style="border-bottom-style: none; border-color: initial; border-image: initial; border-left-style: none; border-right-style: none; border-top-style: none; border-width: initial; cursor: auto; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; position: static;">Imediat după seism, Reactorul 1 a explodat. Pe 14 martie, a explodat Reactorul 3, iar pe 15 martie a avut <span style="border-bottom-color: rgb(192, 209, 254); border-bottom-style: solid; border-bottom-width: 1px; border-color: initial; border-image: initial; border-left-style: none; border-right-style: none; border-top-style: none; border-width: initial; color: rgb(4, 148, 225) !important; cursor: pointer; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; position: static;">loc</span> un incendiu la Reactorul 4.</span></div>
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</div>Centrala nuclearahttp://www.blogger.com/profile/15767642958983614323noreply@blogger.com0tag:blogger.com,1999:blog-9205991734369449380.post-19963308234721358212012-02-25T00:14:00.004-08:002012-02-25T00:14:46.214-08:00Sistemul de funcţionare al Centralei Nucleare de la Cernavodă<br />
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Centrala nuclearoelectrică este un ansamblu de instalaţii şi construcţii reunite în scopul producerii energiei electrice pe baza folosirii energiei nucleare.<br style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;" /><a href="http://s798.photobucket.com/albums/yy263/CernavodaBlog/?action=view&current=1-1.jpg" style="color: #2970a6; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; text-decoration: none;" target="_blank"><img alt="Photobucket" border="0" class="alignleft" height="212" src="http://i798.photobucket.com/albums/yy263/CernavodaBlog/1-1.jpg" style="border-bottom-color: currentcolor; border-bottom-style: none; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-color: currentcolor; border-left-style: none; border-left-width: 0px; border-right-color: currentcolor; border-right-style: none; border-right-width: 0px; border-style: initial; border-top-color: currentcolor; border-top-style: none; border-top-width: 0px; float: left; margin-bottom: 0px; margin-left: 0px; margin-right: 10px; margin-top: 0px; max-width: 600px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; text-align: left;" width="212" /></a>Obţinerea energiei nucleare se bazează pe reacţia de fisiune (descompunere) nucleară în lană. Instalaţia care asigură condiţiile de obţinere şi mentinere a reacţiei în lanţ este reactorul nuclear. În principiu, reactorul se compune dintr-o parte centrală numită zona activă, în care are loc reacţia de fisiune şi se dezvoltă căldura de reacţie.</div>
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<strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;"><em style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">Zona activă</em></strong> conţine combustibilul nuclear alcătuit din izotopi fisionabili (U235, Pu239) şi materiale fertile (U238, U232); moderatorul (apa grea), care are rolul de a încetini viteza neutronilor rapizi, astfel că reacţia să fie controlabilă; barele de control captează neutronii rezultaţi din reacţia de fisiune; agentul de răcire, care preia căldura dezvoltată în zona activă şi o cedează apei în schimbătorul de căldură.</div>
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În schimbătorul de caldură, apa de vaporizează şi devine agentul producător de lucru mecanic în turbină. Lucrul mecanic este transformat de generator în energie electrică. Combustibilul, moderatorul şi agentul de răcire formează aşa numită filieră a reactorului termic care determină caracteristicile specifice centralelor nucleare.</div>
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<strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;"><em style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">Combustibilul</em></strong> introdus în reactor are forma unor pilule compactate sub formă de bare.</div>
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Între barele de combustibil se găsesc barele de control. Acestea conţin cadmiu (element chimic ce absoarbe neutroni). Ele au rolul de a regla numărul de neutroni ce pot produce noi reacţii de fisiune, astfel încât puterea produsă de reactor să rămână constantă în timp.</div>
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Pentru menţinerea reacţiei în lanţ, în unele tipuri de reactoare, neutronii emişi în reacţiile de fisiune trebuie încetiniţi. În timpul frânării neutronilor are loc un transfer de energie de la aceştia la moderator, temperatura moderatorului şi a combustibilului marindu-se.</div>
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Controlul reactoarelor nucleare se face computerizat (inclusiv al sistemelor utilizate pentru protecţia reactorului şi a mediului înconjurător).</div>
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<a href="http://s798.photobucket.com/albums/yy263/CernavodaBlog/?action=view&current=2-1.jpg" style="color: #2970a6; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; text-decoration: none;" target="_blank"><br class="Apple-interchange-newline" /><img alt="Photobucket" border="0" class="alignright" height="168" src="http://i798.photobucket.com/albums/yy263/CernavodaBlog/2-1.jpg" style="border-bottom-color: currentcolor; border-bottom-style: none; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-color: currentcolor; border-left-style: none; border-left-width: 0px; border-right-color: currentcolor; border-right-style: none; border-right-width: 0px; border-style: initial; border-top-color: currentcolor; border-top-style: none; border-top-width: 0px; float: right; margin-bottom: 0px; margin-left: 10px; margin-right: 0px; margin-top: 0px; max-width: 600px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; text-align: right;" width="224" /></a><br style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;" />Centralele nucleare au între 1 şi 8 reactoare (unităţi), fiecare cu o putere înstalată de cel puţin 600 MW.</div>
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<strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;"><em style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">Centrala de la Cernavodă</em></strong> se bazează pe sistemul canadian CANDU şi are o putere instalată de 706 MW în prezent. Structura unui reactor CANDU constă într-un recipient cilindric orizontal, cu tuburi pentru barele de combustibil şi pentru lichidul de răcire (apa grea) plasate orizontal.</div>
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Numele tipului de reactor, <strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;"><em style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">CANDU</em></strong> (<strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">CAN</strong>ada <strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">D</strong>euterium <strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">U</strong>ranium), rezumă trei din caracteristicile principale ale reactorului: proiectul este canadian, foloseşte apa grea ca moderator, iar combustibilul utilizat este uraniul natural.</div>
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<strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;"><em style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">Agentul de răcire</em></strong> este pompat prin canalele de combustibil , răcind combustibilul şi apoi, prin generatoarele de abur unde căldura este trasferată apei (uşoare) pentru producerea aburului.<br style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;" />Aburul este trimis la turbo – generator pentru a produce energie electrică într-un mod convenţional.</div>
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Reactorul este format dintr-un ansamblu cilindric din oţel – inox (<strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;"><em style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">calandria</em></strong>) plasat într-o structură de beton placat cu oţel (chesonul calandriei) care asigură protecţia termică<br style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;" />şi răcirea. Calandria conţine apa grea ca moderator, mecanisme de control al reactivităţii şi 380 canale de combustibil. Canalele de combustibil care conţin combustibil şi apa grea folosită ca agent de răcire, sunt amplasate în tuburi mai mari în calandria.</div>
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Calandria este susţinută de protecţii de capăt între zona activă a reactorului şi zona de funcţionare a maşinii de încărcat combustibil. Reactorul este încărcat cu uraniu natural sub formă de pastile de bioxid de uraniu. Treizeci de pastile puse cap la cap sunt conţinute într-o teacă din aliaj de zirconiu (Zircaloy) formând un element combustibil. Treizeci şi şapte de asemenea elemente sunt asamblate într-un fascicul de combustibil care cântăreşte 23,7 kg. Fiecare canal de combustibil conţine doisprezece fascicule de combustibil.</div>
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<strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;"><em style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">Sistemul de reglare</em></strong> al reactorului controlează puterea reactorului în limitele specifice şi asigură că sunt îndeplinite cerinţele centralei; de asemenea monitorează distribuţia puterii în zona activă pentru a optimiza puterea pe fascicul şi pe canal conform specificaţiilor de proiect.</div>
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<strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;"><em style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">Sistemul de manipulare a combustibilului</em></strong> realimentează reactorul cu fascicule de combustibil proaspăt în timpul funcţionării normale a reactorului; acest sistem este proiectat să funcţioneze la toate nivelele de putere a reactorului. De asemenea, sistemul asigură depozitarea temporară a combustibilului proaspăt şi iradiat.<br style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;" /><a href="http://s798.photobucket.com/albums/yy263/CernavodaBlog/?action=view&current=3-1.gif" style="color: #2970a6; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; text-decoration: none;" target="_blank"><img alt="Photobucket" border="0" class="aligncenter" height="247" src="http://i798.photobucket.com/albums/yy263/CernavodaBlog/3-1.gif" style="border-bottom-color: currentcolor; border-bottom-style: none; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-color: currentcolor; border-left-style: none; border-left-width: 0px; border-right-color: currentcolor; border-right-style: none; border-right-width: 0px; border-style: initial; border-top-color: currentcolor; border-top-style: none; border-top-width: 0px; display: block; margin-bottom: 0px; margin-left: auto; margin-right: auto; margin-top: 0px; max-width: 600px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;" width="451" /></a><br style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;" />Fascicululele de combustibil sunt împinse în canalul reactorului de către o maşină de încărcat combustibil, acţionata de la distanţă. Fasciculele de combustibil iradiat sunt descărcate în acelaşi timp de o altă maşină de combustibil, situată la capătul opus al canalului de combustibil. Combustibilul iradiat este apoi transferat într-un bazin de stocare plin cu apă aflat în clădirea serviciilor, lângă clădirea reactorului</div>
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Prin<strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;"><em style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;"> sistemul de transport al căldurii</em></strong> circulă agentul de răcire presurizat (D<strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;"><sub style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">2</sub></strong>O) prin canalele de combustibil pentru a extrage căldura produsă prin fisiunea uraniului. Căldura este transportată de către agentul de răcire la cele patru generatoare de abur identice.</div>
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Sunt prevăzute două bucle de circulaţie, fiecare răcind câte o jumătate din zona activă.<em style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">Generatorul de abur</em> şi pompele de circulaţie sunt plasate la fiecare capăt al reactorului astfel încât în jumătate din zona activă, debitul este direcţionat într-un sens iar în cealaltă jumătate, în sens opus. Presurizorul menţine presiunea în circuitul de răcire la o valoare relativ ridicată. Fluidul de răcire este circulat în permanenţă în timpul funcţionării reactorului, pe durata opririi şi în perioada de întreţinere.</div>
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Neutronii produşi prin reacţia de fisiune sunt moderaţi (încetiniţi) de apa grea (D<strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;"><sub style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">2</sub></strong>O) din<br style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;" />calandria. Apa grea este circulată prin sistemul moderator pentru răcire, purificare şi controlul substanţelor folosite pentru reglarea reactivităţii. Apa grea din calandria<br style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;" />acţionează ca o sursă rece într-un eveniment de pierdere a agentului de răcire, fapt ce ar coincide cu indisponibilitatea sistemului de răcire la avarie a zonei active.</div>
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<strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;"><em style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">Sistemul generator de abur</em></strong> transferă căldura din apa grea (D<strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;"><sub style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">2</sub></strong>O) folosită ca agent<br style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;" />de răcire, apei uşoare (H<strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;"><sub style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">2</sub></strong>O) pentru formarea aburului, care duce la turbo – generator. Sistemul generator de apă de alimentare procesează aburul condensat venit de la turbină<br style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;" />şi îl trimite la turbo – generator.</div>
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Turbina tip CANDU 6 constă într-un corp de înaltă presiune dublu flux şi trei corpuri de joasă presiune în dublu flux care eşapează în trei corpuri de condensator.<br style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;" /><a href="http://s798.photobucket.com/albums/yy263/CernavodaBlog/?action=view&current=4.jpg" style="color: #2970a6; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; text-decoration: none;" target="_blank"><img alt="Photobucket" border="0" class="alignleft" height="94" src="http://i798.photobucket.com/albums/yy263/CernavodaBlog/4.jpg" style="border-bottom-color: currentcolor; border-bottom-style: none; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-color: currentcolor; border-left-style: none; border-left-width: 0px; border-right-color: currentcolor; border-right-style: none; border-right-width: 0px; border-style: initial; border-top-color: currentcolor; border-top-style: none; border-top-width: 0px; float: left; margin-bottom: 0px; margin-left: 0px; margin-right: 10px; margin-top: 0px; max-width: 600px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; text-align: left;" width="129" /></a></div>
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Un program de <strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;"><em style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">radioprotecţie</em></strong> optimă a fost elaborat şi implementat pentru a asigura protecţia personalului, populaţiei, cât şi protecţia mediului înconjurător. Programul se bazează pe ultimele recomandări ICPR referitoare la limitarea şi optimizarea limitelor de expunere la radiaţii. Un aspect important al programului de radioprotecţie îl reprezintă monitorarea dozimetrică în incinta CNE şi în mediul înconjurător.</div>
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<a class="title" href="http://cernavoda.wordpress.com/2009/11/01/centrala-nucleara-de-la-cernavoda-%e2%80%93-partea-i/" rel="bookmark" style="color: #4c4c4c; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; text-decoration: none;">Centrala Nucleară de la Cernavodă – Partea I</a></h2>
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<span class="date" style="background-attachment: initial; background-clip: initial; background-color: initial; background-image: url(http://s2.wp.com/wp-content/themes/pub/inove/img/icons.gif); background-origin: initial; background-position: 0px -48px; background-repeat: no-repeat no-repeat; display: block; float: left; font-size: 11px; height: 16px; line-height: 16px; margin-bottom: 0px; margin-left: 0px; margin-right: 15px; margin-top: 0px; padding-bottom: 0px; padding-left: 22px; padding-right: 0px; padding-top: 0px;">1 noiembrie 2009</span><span class="author" style="background-attachment: initial; background-clip: initial; background-color: initial; background-image: url(http://s2.wp.com/wp-content/themes/pub/inove/img/icons.gif); background-origin: initial; background-position: 0px 0px; background-repeat: no-repeat no-repeat; display: block; float: left; font-size: 11px; height: 16px; line-height: 16px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 22px; padding-right: 0px; padding-top: 0px;"><a href="http://cernavoda.wordpress.com/author/cernavodean/" rel="author" style="color: #2970a6; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; text-decoration: none;" title="Articole de cernavodean">cernavodean</a></span><span class="comments" style="background-attachment: initial; background-clip: initial; background-color: initial; background-image: url(http://s2.wp.com/wp-content/themes/pub/inove/img/icons.gif); background-origin: initial; background-position: 0px -96px; background-repeat: no-repeat no-repeat; display: block; float: right; font-size: 11px; height: 16px; line-height: 16px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 22px; padding-right: 0px; padding-top: 0px;"><a href="http://cernavoda.wordpress.com/2009/11/01/centrala-nucleara-de-la-cernavoda-%e2%80%93-partea-i/#comments" style="color: #2970a6; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; text-decoration: none;" title="Comentariu la Centrala Nucleară de la Cernavodă – Partea I">11 comentarii</a></span><div class="fixed" style="clear: both; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">
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<a href="http://s798.photobucket.com/albums/yy263/CernavodaBlog/?action=view&current=profileCNE.jpg" style="color: #2970a6; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; text-decoration: none;" target="_blank"><img alt="Photobucket" border="0" class="aligncenter" height="210" src="http://i798.photobucket.com/albums/yy263/CernavodaBlog/profileCNE.jpg" style="border-bottom-color: currentcolor; border-bottom-style: none; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-color: currentcolor; border-left-style: none; border-left-width: 0px; border-right-color: currentcolor; border-right-style: none; border-right-width: 0px; border-style: initial; border-top-color: currentcolor; border-top-style: none; border-top-width: 0px; display: block; margin-bottom: 0px; margin-left: auto; margin-right: auto; margin-top: 0px; max-width: 600px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;" width="583" /></a><br style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;" />Deşi omenirea a îmblânzit recent puterea nucleară, primele reactoare nucleare au apărut în mod natural. Cincisprezece reactoare de fisiune naturale au fost găsite în trei depozite separate de minereu la mina Oklo din Gabon, în vestul Africii. Descoperite pentru prima dată de Francis Perrin, acestea sunt numite ca „Reactoarele Fosile Oklo”. Aceste reactoare funcţionează de aproximativ 150 milioane de ani, având o putere medie de 100 kW. De asemenea, emisia de căldură, lumină şi radiaţii de la stele se bazează pe fuziunea nucleară. Conceptul unui reactor nuclear natural a fost teoretizat încă din 1956 de Paul Kurola la University of Arkansas.</div>
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Enrico Fermi şi Leo Szilard, ambii de la University of Chicago, au fost primii care au construit o pilă nucleară şi au prezentat o reacţie în lanţ controlată, pe 2 Decembrie 1942. În 1955 ei şi-au împărţit patentul de invenţie pentru reactorul nuclear U.S. Patent 2.708.656.</div>
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Primul reactor nuclear a fost utilizat pentru a genera plutoniu pentru bomba nucleară. Alte reactoare au fost folosite în navigaţie pentru propulsarea submarinelor şi chiar avioane. La mijlocul lui 1950 Uniunea Sovietică şi ţările vestice şi-au extins cercetările pentru a include şi utilizarea nemilitară a atomului. Totuşi, ca şi programul militar, multe din lucrările nemilitare au fost făcute în secret.</div>
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Pe 20 Decembrie 1951, în SUA, a fost generat pentru prima dată curent electric folosind putere nucleară la Experimental Breeder Reactor-I (EBR-1) localizat lângă Arco, statul Idaho. Pe 26 Iunie 1954, la ora 5:30 a început să genereze curent electric prima centrală nucleară sovietică, la Obninsk, Kaluga Oblast. Ea a produs 5 MW, asigurând electricitate pentru 2.000 de case.</div>
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Prima centrală nucleară de tip comercial din lume a început să funcţioneze pe 17 Octombrie 1956, la Calder Hall. Un alt reactor de putere timpuriu a fost Shippingport Reactor în Pennsylvania (1957).</div>
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Chiar înainte de accidentul din 1979 d la Three Mile Island, au fost oprite unele comenzi pentru centrale nucleare în USA din raţiuni economice legate în primul rând de durata lungă de construcţie. De altfel din 1978 nu s-au mai construit centrale în SUA; situaţia s-ar putea schimba după 2010.<br style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;" /><a href="http://s798.photobucket.com/albums/yy263/CernavodaBlog/?action=view&current=cernavoda-centrala-thumb-250-0-18.jpg" style="color: #2970a6; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; text-decoration: none;" target="_blank"><img alt="Photobucket" border="0" class="alignleft" height="175" src="http://i798.photobucket.com/albums/yy263/CernavodaBlog/cernavoda-centrala-thumb-250-0-18.jpg" style="border-bottom-color: currentcolor; border-bottom-style: none; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-color: currentcolor; border-left-style: none; border-left-width: 0px; border-right-color: currentcolor; border-right-style: none; border-right-width: 0px; border-style: initial; border-top-color: currentcolor; border-top-style: none; border-top-width: 0px; float: left; margin-bottom: 0px; margin-left: 0px; margin-right: 10px; margin-top: 0px; max-width: 600px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;" width="250" /></a></div>
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Spre deosebire de accidentul de la Three Mile Island, accidentul din 1986 de la Cernobîl nu a înăsprit reglementările cu privire la reactoarele din Vest. Acesta deoarece reactoarele de la Cernobîl, de tip RBMK, erau cunoscute ca având un proiect nesigur, fără clădiri de siguranţă şi operate nesigur, iar Vestul auzite prea puţine despre ele. Au fost şi precipitări politice: Italia a ţinut un referendum în anul următor, 1987, ale cărui rezultate au condus la oprirea a patru centrale nucleare.</div>
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<strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">În 1992 centrala Turkey Point Nuclear Generation Station a fost lovită direct de uraganul Andrew.</strong> Au fost pagube de peste 90 milioane de dolari, cele mai mari la un rezervor de apă şi un coş de fum al unei unităţi funcţionând cu combustibili fosili, dar clădirile de protecţie nu au avut de suferit.</div>
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Prima structură de dezvoltare a sistemelor nucleare de putere utilitare, şi anume US Navy, este singura din lume cunoscută ca având o activitatea total curată. US Navy a operat mai multe reactoare decât orice altă entitate, chiar şi Soviet Navy, fără incidente majore făcute publice. Două submarine americane, USS Scorpion şi Thresher au fost pierdute în mare, din motive ce nu au avut legătură cu reactoarele lor, epavele lor fiind astfel situate încât riscul de poluare nucleară este considerat scăzut.</div>
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<strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;"><em style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;"><span style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; text-decoration: underline;"></span></em></strong></div>
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<strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;"><em style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;"><span style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; text-decoration: underline;">Principiul de funcţionare</span></em></strong></div>
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<strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;"><em style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">Centrala nuclearo-electrică </em></strong>este un ansamblu de instalaţii şi construcţii reunite în scopul producerii energiei electrice pe baza folosirii energiei nucleare.<br style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;" /><a href="http://s798.photobucket.com/albums/yy263/CernavodaBlog/?action=view&current=centrala_nucleara_schema.png" style="color: #2970a6; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; text-decoration: none;" target="_blank"><img alt="Photobucket" border="0" class="aligncenter" height="295" src="http://i798.photobucket.com/albums/yy263/CernavodaBlog/centrala_nucleara_schema.png" style="border-bottom-color: currentcolor; border-bottom-style: none; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-color: currentcolor; border-left-style: none; border-left-width: 0px; border-right-color: currentcolor; border-right-style: none; border-right-width: 0px; border-style: initial; border-top-color: currentcolor; border-top-style: none; border-top-width: 0px; display: block; margin-bottom: 0px; margin-left: auto; margin-right: auto; margin-top: 0px; max-width: 600px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;" width="450" /></a></div>
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Obţinerea energiei nucleare se bazează pe reacţia de fisiune(descompunere) nucleară în lanţ. Instalaţia care asigură condiţiile de obţinere şi menţinere a reacţiei în lanţ este reactorul nuclear. În principiu, reactorul se compune dintr-o parte centrală numită zonă activă, în care are loc reacţia de fisiune şi se dezvoltă căldura de reacţie.</div>
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<strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">Zona activă</strong> conţine combustibilul nuclear alcătuit din izotopi fisionabili<em style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;"> (U235, Pu239) </em>şi materiale fertile (<em style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">U238, U232</em>); moderatorul (apa grea), care are rolul de a încetini viteza neutronilor rapizi, astfel ca reacţia să fie controlabilă; barele de control captează neutronii rezultaţi din reacţia de fisiune; agentul de răcire, care preia căldura dezvoltată în zona activă şi o cedează apei în schimbătorul de căldură.</div>
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În schimbătorul de căldură, apa de vaporizează şi devine agentul producător de lucru mecanic în turbină. Lucrul mecanic este transformat de generator în energie electrică.</div>
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Combustibilul, moderatorul şi agentul de răcire formează aşa numita filieră a reactorului termic care determină caracteristicile specifice centralelor nucleare.</div>
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<span style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; text-decoration: underline;">Combustibilul introdus în reactor</span> are forma unor pilule compactate sub formă de bare.</div>
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Între barele de combustibil se găsesc barele de control. Acestea conţin cadmiu (element chimic ce absoarbe neutroni). Ele au rolul de a regla numărul de neutroni ce pot produce noi reacţii de fisiune, astfel încât puterea produsă de reactor să rămână constantă în timp.</div>
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Pentru menţinerea reacţiei în lanţ, în unele tipuri de reactoare, neutronii emişi în reacţiile de fisiune trebuie încetiniţi. În timpul frânării neutronilor are loc un transfer de energie de la aceştia la moderator, temperatura moderatorului şi a combustibilului mărindu-se.</div>
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Controlul reactoarelor nucleare se face computerizat (inclusiv al sistemelor utilizate pentru protecţia reactorului şi a mediului înconjurător).</div>
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<strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;"><em style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">Centralele nucleare</em></strong><em style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;"> au intre 1 </em><em style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">ş</em><em style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">i 8 reactoare (unit</em><em style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">ăţ</em><em style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">i), fiecare cu o putere instalată de cel pu</em><em style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">ţ</em><em style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">in 600 MW</em>.<br style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;" /><a href="http://s798.photobucket.com/albums/yy263/CernavodaBlog/?action=view&current=centrala-nucleara.jpg" style="color: #2970a6; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; text-decoration: none;" target="_blank"><img alt="Photobucket" border="0" class="alignright" height="210" src="http://i798.photobucket.com/albums/yy263/CernavodaBlog/centrala-nucleara.jpg" style="border-bottom-color: currentcolor; border-bottom-style: none; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-color: currentcolor; border-left-style: none; border-left-width: 0px; border-right-color: currentcolor; border-right-style: none; border-right-width: 0px; border-style: initial; border-top-color: currentcolor; border-top-style: none; border-top-width: 0px; float: right; margin-bottom: 0px; margin-left: 10px; margin-right: 0px; margin-top: 0px; max-width: 600px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; text-align: right;" width="280" /></a><br style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;" />Singura centrală nucleară din România se găseşte la Cernavodă. La Cernavodă funcţioneză în prezent două unităti, ce produc împreună circa 18% din consumul de energie electrică al ţării.</div>
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Planul iniţial, datând de la începutul anilor 1980, prevedea construcţia a cinci unităţi. <strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">Unitatea I a fost terminată în 1996</strong>, are o putere electrica instalata de 706 MW si produce anual circa 5 TWh. Unitatea II a fost pornită pe 6 mai, conectată la sistemul energetic naţional pe 7 august şi funcţionează la parametrii normali din luna septembrie 2007.</div>
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<strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;"><em style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">Centrala de la Cernavod</em></strong><strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;"><em style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">ă</em></strong><strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;"><em style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;"> </em></strong>se bazează pe sistemul canadian <strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">CANDU</strong> şi are o putere instalată de <strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">706 MW </strong>în prezent. Structura unui reactor <strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">CANDU</strong> constă într-un recipient cilindric orizontal, cu tuburi pentru barele de combustibil şi pentru lichidul de răcire (<strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">ap</strong><strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">ă</strong><strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;"> grea</strong>) plasate orizontal.</div>
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<a href="http://s798.photobucket.com/albums/yy263/CernavodaBlog/?action=view&current=thumb_446_x_0_5029-96248-jf_4332cop.jpg" style="color: #2970a6; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; text-decoration: none;" target="_blank"><img alt="Photobucket" border="0" class="aligncenter" height="290" src="http://i798.photobucket.com/albums/yy263/CernavodaBlog/thumb_446_x_0_5029-96248-jf_4332cop.jpg" style="border-bottom-color: currentcolor; border-bottom-style: none; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-color: currentcolor; border-left-style: none; border-left-width: 0px; border-right-color: currentcolor; border-right-style: none; border-right-width: 0px; border-style: initial; border-top-color: currentcolor; border-top-style: none; border-top-width: 0px; display: block; margin-bottom: 0px; margin-left: auto; margin-right: auto; margin-top: 0px; max-width: 600px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;" width="446" /></a></div>
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În jurul acestor tuburi se află apă grea, care acţionează ca moderator. Apa grea conţine doi atomi de deuteriu (<strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">un izotop neradioactiv al hidrogenului</strong>) şi un atom de oxigen. Apa grea este mult mai eficientă ca moderator decât apa obişnuită şi permite folosirea uraniului natural drept combustibil. Ea se obţine în întreprinderi specializate, prin separarea sa din apa naturală (există o astfel de întreprindere la <em style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">Drobeta Turnu-Severin).</em></div>
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Pentru realizarea Unităţilor 3 şi 4 de la Cernavodă a fost ales modelul unei Companii de Proiect realizată prin parteneriat între statul roman prin intermediul Nuclearelectrica şi investitori privaţi. Cei şase investitori care au depus oferte şi au fost selectaţi sunt: Arcelor Mittal România care va deţine 6,2 din acţiunile viitoarei companii, Grupul CEZ Republica Cehă – 9,15%, ENEL Italia – 9,15%, GDF Suez – 9,15%, Iberdrola Spania – 6,2% şi RWE Germania – 9,15%, în condiţiile în care statul roman va deţine 51% din acţiuni. Compania de proiect numita EnergoNuclear a fost înfiinţată în martie 2009, iar cele două unitaţi se estimează că vor fi puse în funcţiune în 2015-2016.</div>
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<strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;"><span style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; text-decoration: underline;">Securitatea centralelor nuclearoelectrice</span></strong></div>
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În regim de funcţionare normală, cantităţile de substanţe radioactive eliberate de <strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">centrala nuclear</strong><strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">ă</strong><strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;"> </strong>sunt nesemnificative. Pericolul specific, pentru populaţie şi mediul ambiant, constă în eliberarea necontrolată de substanţe radioactive. Sistemele tehnice de securitate sunt destinate să limiteze distrugerile zonei active a reactorului.</div>
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De la descoperirea fisiunii nucleare, populaţia a fost saturată cu povestiri alarmante şi cu exagerări despre energia nucleară.<em style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;"> S-a emis astfel ipoteza c</em><em style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">ă</em><em style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;"> orice reactor poate exploda oricând ca o bomb</em><em style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">ă</em><em style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;"> nuclear</em><em style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">ă</em><em style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">.</em></div>
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<strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">În pricipiu, nici un reactor nuclear nu poate exploda ca o bombă.</strong> Sunt însă posibile accidente în care reactoarele să se supraîncălzească, iar componentele lor, depinzând de materialele din care sunt realizate, să se topească sau să ardă. Creşterea presiunii agentului de răcire poate deveni cauza unor explozii “mecanice” care ar deteriora învelişul reactorului sau al sistemului de răcire. Astfel, pot fi împrăştiate în spaţiu materiale radioactive, care să contamineze mediul înconjurător. <strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;"><span style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; text-decoration: underline;">Centralele nucleare </span></strong>actuale sunt proiectate astfel încât probabilitatea unor accidente de acest tip să fie minimă.</div>
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Toate reactoarele nucleare moderne sunt închise în containere extrem de sigure. Acestea sunt proiectate astfel încât să prevină orice scurgeri radioactive care ar putea rezulta în urma unor accidente de operare.</div>
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<strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;"><em style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;"><span style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; text-decoration: underline;">Centralele nucleare </span></em></strong>sunt astfel proiectate încât să cuprindă sisteme care să prevină producerea accidentelor nucleare. Acestea sunt dispuse “în linie”, astfel încât, dacă un sistem de protecţie se defectează, un altul să îi ia locul şi aşa mai departe. Desigur, este posibil ca toate sistemele din “linia” de protecţie să cadă unul după celălalt, dar probabilitatea producerii unui astfel de eveniment este extrem de mică.</div>
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<br />Centrala nuclearahttp://www.blogger.com/profile/15767642958983614323noreply@blogger.com0tag:blogger.com,1999:blog-9205991734369449380.post-6947506951432969442012-02-25T00:12:00.004-08:002012-02-25T00:12:54.529-08:00Ce se va întâmpla cu Centrala Nucleară dacă nivelul Dunării ajunge la 2,5 metri<img src="http://www.romanialibera.ro/usr/thumbs/thumb_612_x_324/2011/09/16//198749-centrala-nucleara.jpg" />
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Doar jumătate de metru mai desparte Centrala Nuclearaă de la Cernavodă, operată de compania Nuclearelectrica, de oprirea comercială a reactoarelor nucleare, au anunţat vineri reprezentanţii Comisiei Naţionale pentru Controlul Activităţilor Nucleare (CNCAN).<br style="font-size: inherit !important; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;" /><div style="font-size: inherit !important; margin-bottom: 1.12em; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">
<br style="font-size: inherit !important; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;" />"Dacă nivelul apei ajunge la 2,5 metri, Centrala Nucleară de la Cernavodă se va opri. Oprirea este însă doar pur comercială, însă sistemele de securitate vor funcţiona în continuare", a explicat Cantemir Ciurea, director CNCAN.</div>
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Nivelul actual al Dunării este de 3 metri, iar scăderea cu jumătate de metru ar putea duce la oprirea reactoarelor nucleare din punct de vedere comercial, adică nu va mai fi produsă energie electrică pentru comercializare. <br style="font-size: inherit !important; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;" />"Nu există riscuri radiologice", a precizat Vajda Borbala, preşedintele CNCAN.</div>
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<br style="font-size: inherit !important; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;" />Pe de altă parte, Cantemir Ciurea a explicat că sistemele de securitate de la Centrala Nucleară pot funcţiona şi în cazul în care nivelul Dunării va ajunge la 1,5 metri. Pe lângă pompele din Dunăre, mai există puţuri de 600 metri adâncime care pot asigura apa necesară răcirii reactoarelor. Aceste măsuri suplimentare au fost luate în 2003, când nivelul Dunării a scăzut sub nivelul proiectat pentru Centrala de la Cernavodă.</div>
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<br style="font-size: inherit !important; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;" />Vineri, Dunărea avea un debit de 2.400 de metri cubi pe secundă, cu peste o mie de metri cubi sub media multianuală a lunii septembrie.</div>
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Centrala Nucleară de la Cernavodă, unde funcţionează două grupuri nucleare cu o putere de circa 700 MW fiecare, asigură circa 19% din consumul naţional de energie electrică.</div>
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<strong style="color: #555555; font-family: Verdana, 'BitStream vera Sans', Helvetica, sans-serif; font-size: 12px; line-height: 17px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; text-align: justify;">AECL</strong><span style="color: #555555; font-family: Verdana, 'BitStream vera Sans', Helvetica, sans-serif; font-size: 12px; line-height: 17px; text-align: justify;"> </span><span style="color: #555555; font-family: Verdana, 'BitStream vera Sans', Helvetica, sans-serif; font-size: 12px; line-height: 17px; text-align: justify;">(Atomic Energy of Canada Ltd.) activeazǎ în domeniul energiei nucleare în scopuri civile de aproximativ 60 de ani, iar principalul lor “produs”, reactoarele nucleare de tip</span><span style="color: #555555; font-family: Verdana, 'BitStream vera Sans', Helvetica, sans-serif; font-size: 12px; line-height: 17px; text-align: justify;"> </span><strong style="color: #555555; font-family: Verdana, 'BitStream vera Sans', Helvetica, sans-serif; font-size: 12px; line-height: 17px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; text-align: justify;">CANDU</strong><span style="color: #555555; font-family: Verdana, 'BitStream vera Sans', Helvetica, sans-serif; font-size: 12px; line-height: 17px; text-align: justify;">(CANada Deuterium Uranium), sunt în topul producǎtorilor de energie electricǎ prin fisiune nuclearǎ.</span></div>
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Fondatǎ în 1952, de cǎtre guvernul canadian, <strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">AECL</strong>dezvoltǎ pe piaţǎ reactoarele <strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">CANDU</strong>, pune la dispoziţie servicii suport <strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">CANDU</strong> şi reatoare apǎ uşoarǎ, oferǎ servicii şi tehnologie pentru administrarea deşeurilor radioactive şi de protecţie a mediului, precum şi produse asociate, ca reactoarele de cercetare multifuncţionale <strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">MAPLE</strong> şi acceleratori industriali<strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">IMPELA</strong>.</div>
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<strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">AECL</strong> are sediul central în Ottawa, Ontario, şi peste 6000 de angajaţi în 2011. <strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">AECL</strong> deţine Laboratoarele Chalk River, lângǎ Ottawa şi Laboratoarele Whiteshell în Manitoba, unde dezvoltǎ cunoaşterea în zonele producerii de energiei, lucrând la o noua generaţie de reactoare nucleare. De asemenea <strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">AECL</strong> are birouri alǎturi de proiectele la care participǎ în: Atlanta (SUA), Bueno Aires (Argentina), Seul (Coreea de Sud), Haga (Olanda), Moscova (Rusia),Jakarta (Indonezia),Beijing (China),Ankara (Turcia) şiCairo (Egipt).</div>
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Construcţia unei centrale nucleare în România avea sǎ fie cel mai grandios proiect al regimului comunist. Prima ideea a fost construaţia la Cernavodǎ a unei centrale nucleare de tip sovietic VVER 440. Comisia de experţi români infiinţatǎ la începutul anilor ’70 se loveşte însǎ de mai multe impedimente în privinţa construcţiei, impedimente ce priveau in principal siguranţa în exploatare a unor astfel de reactoare de tip sovietic. Astfel cǎ, în 1976 este finalizat studiul de fezabilitate româno-canadian pentru construirea la Cernavodǎ a unor reactoare de tip<strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">CANDU</strong>.</div>
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<strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">CANDU</strong> este un reactor nuclear de tipul <strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">PHWR</strong> (Pressurized Heavy Water Reactor), adică un reactor în care apa grea, aflată sub presiune, îndeplineşte dubla funcţie de a răci ansamblul de bare care formează combustibilul nuclear şi de a modera neutronii rezultaţi din fisiunea spontană a uraniului ce se foloseşte drept combustibil.</div>
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La orice privire imparţială asupra diferitelor tipuri de reactoare nucleare, se remarcă câteva din avantajele majore a acestui tip de reactor nuclear comparativ cu altele de tipuri diferite:</div>
<ul style="background-color: white; color: #555555; font-family: Verdana, 'BitStream vera Sans', Helvetica, sans-serif; font-size: 12px; line-height: 17px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 10px; padding-left: 0px; padding-right: 0px; padding-top: 0px; text-align: justify;">
<li style="list-style-position: inside; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 20px; padding-right: 0px; padding-top: 0px;">Apa grea – a cărui formulă chimică este <strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">D<sub style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">2</sub>O</strong>, unde litera <strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">D</strong> desemnează atomul de hidrogen greu (deuteriu):</li>
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<ul style="background-color: white; color: #555555; font-family: Verdana, 'BitStream vera Sans', Helvetica, sans-serif; font-size: 12px; line-height: 17px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 10px; padding-left: 0px; padding-right: 0px; padding-top: 0px; text-align: justify;"><ul style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 10px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">
<li style="list-style-position: inside; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 20px; padding-right: 0px; padding-top: 0px;">se poate obţine oriunde în lume, printr-un prodeu de îmbogăţire, întrucât apa grea se găseşte natural dispersată în apa Pământului;</li>
<li style="list-style-position: inside; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 20px; padding-right: 0px; padding-top: 0px;">este o substanţă moderatoare foarte eficientă datorită absorbţiei relativ reduse a neutronilor de fisiune;</li>
<li style="list-style-position: inside; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 20px; padding-right: 0px; padding-top: 0px;">se poate refolosi după reconcentrare şi îndepărtarea tritiului.</li>
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<li style="list-style-position: inside; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 20px; padding-right: 0px; padding-top: 0px;">Uraniul natural folosit drept combustibil, care conţine (izotopul <strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;"><sup style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">235</sup>U</strong> în proporţie de 0,71%, acesta fiind singurul izotop al uraniului care fisionează cu neutroni termici), care:</li>
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<ul style="background-color: white; color: #555555; font-family: Verdana, 'BitStream vera Sans', Helvetica, sans-serif; font-size: 12px; line-height: 17px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 10px; padding-left: 0px; padding-right: 0px; padding-top: 0px; text-align: justify;"><ul style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 10px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">
<li style="list-style-position: inside; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 20px; padding-right: 0px; padding-top: 0px;">se găseşte sub formă de zăcăminte naturale în multe din ţările lumii;</li>
<li style="list-style-position: inside; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 20px; padding-right: 0px; padding-top: 0px;">România deţine unele dintrele cele mai mari zǎcǎminte de uraniu din Europa şi îşi poate asigura în proporţie de 100% combustibilul;</li>
<li style="list-style-position: inside; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 20px; padding-right: 0px; padding-top: 0px;">nu presupune existenţa unor uzine de îmbogăţire izotopica ce folosesc tehnologii scumpe şi implica costuri foarte mari;</li>
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<ul style="background-color: white; color: #555555; font-family: Verdana, 'BitStream vera Sans', Helvetica, sans-serif; font-size: 12px; line-height: 17px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 10px; padding-left: 0px; padding-right: 0px; padding-top: 0px; text-align: justify;">
<li style="list-style-position: inside; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 20px; padding-right: 0px; padding-top: 0px;">Reactorul <strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">CANDU</strong> este mult mai eficient decât celelalte tipuri de reactoare ce folosesc apă obişuită, deoarece consumă cu aproximativ 15% mai puţin uraniu natural.</li>
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Pentru centrala nuclearǎ de la Cernavodǎ este aprobatǎ tehnologia de tip <strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">CANDU 6</strong> care produce 700MW putere la borne. Contractul de preluare a licenţei sistemului <strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">CANDU</strong> este semnat in decembrie 1978 între <strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">ROMENERGO</strong> şi <strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">AECL</strong>, iar în 1982 începe turnarea primelor betoane la Centrala Nuclearǎ Cernavodǎ.</div>
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Sub supravegherea <strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">AECL, </strong>revoluţia din 1989 gǎseşte centrala nuclearǎ construitǎ în proporţie de aproximativ 45%, dar lucrǎrile sunt sistate.</div>
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În august 1991 este semnat un nou contract de management pentru finalizarea unitǎţii 1 între statul român şi consorţiul <strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">AECL-ANSALDO</strong>, iar prima conectare la sistemul electroenergetic naţional a unitǎţii 1 CNE Cernavodǎ are loc în iulie 1996. La 30 Iunie 1997<strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">AECL-ANSALDO</strong> terminǎ transferul integral al responsabilitǎţilor conducerii şi exploatǎrii unitǎţii 1 cǎtre personalul român .</div>
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La 2 Iulie 1998 este înfiinţatǎ <strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">Societatea Naţionalǎ Nuclearelectrica SA</strong> (Hg nr. 365/1998; Mof nr. 246/03.07.1998) care va semna în 2001 un nou contract cu <strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">AECL-ANSALDO </strong>pentru finalziarea construcţiei unitaţii 2 a CNE Cernavodǎ şi dupǎ numai 6 ani (octombrie 2007) este pusǎ în funcţiunea oficial şi unitatea numǎrul 2.</div>
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În 2010, <strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">AECL</strong> a câştigat şi proiectul de consultanţǎ pentru construirea reactoarelor 3 şi 4 ale CNE Cernavodǎ, urmând sǎ asigure servicii de consultanţǎ în domeniul siguranţei nucleare şi ingineriei pentru realizarea celor douǎ noi reactoare de la Cernavodǎ.</div>
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Acţionarul majoritar al<strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;"> ENERGONUCLEAR</strong><strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">, </strong>companie care a fost înfiinţatǎ în martie 2009 pentru a se ocupa de construcţia, punerea în funcţiune şi operarea reactoarelor 3 şi 4 de la Cernavodǎ, este compania naţionalǎ <strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">NUCLEARELECTRICA</strong>. Ceilalţi acţionari ai<strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">ENERGONUCLEAR</strong>, care deţin împreunǎ 49% din companie, sunt CEZ, GDF Suez, RWE Power, Iberdrola şi Arcelor Mittal.</div>
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Începerea efectivǎ a lucrǎrilor continuǎ sǎ fie tergiversatǎ de cǎtre autoritǎţile române şi investitori.</div>
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Mai multe informaţii despre AECL puteţi afla şi de pe site-ul oficial al companiei: <a href="http://www.aecl.ca/Default.aspx" style="color: #2970a6; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; text-decoration: none;" target="_blank" title="Atomic Energy of Canada LTD.">Atomic Energy of Canada Ltd.</a><strong style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;"><br style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;" /></strong><br style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;" /><a href="http://s798.photobucket.com/albums/yy263/CernavodaBlog/?action=view&current=CANDU_at_Qinshan.jpg" style="color: #2970a6; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;" target="_blank"><img alt="Photobucket" border="0" class="aligncenter" height="386" src="http://i798.photobucket.com/albums/yy263/CernavodaBlog/CANDU_at_Qinshan.jpg" style="border-bottom-color: currentcolor; border-bottom-style: none; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-color: currentcolor; border-left-style: none; border-left-width: 0px; border-right-color: currentcolor; border-right-style: none; border-right-width: 0px; border-style: initial; border-top-color: currentcolor; border-top-style: none; border-top-width: 0px; display: block; margin-bottom: 0px; margin-left: auto; margin-right: auto; margin-top: 0px; max-width: 600px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;" title="Centrala cu doua reactoare de tip CANDU la Quinshan (China)" width="580" /></a></div>Centrala nuclearahttp://www.blogger.com/profile/15767642958983614323noreply@blogger.com0tag:blogger.com,1999:blog-9205991734369449380.post-21828581634822727682012-02-25T00:09:00.001-08:002012-02-25T00:09:42.057-08:00<img alt="”explozie" src="http://skepticalteacher.files.wordpress.com/2011/03/nuclear-explosion_0.jpg" />Centrala nuclearahttp://www.blogger.com/profile/15767642958983614323noreply@blogger.com0tag:blogger.com,1999:blog-9205991734369449380.post-85077959476575084252012-02-25T00:08:00.000-08:002012-02-25T00:08:02.820-08:00<br />
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Centrala Nucleară de la Cernavodă</h1>
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De la Wikipedia, enciclopedia liberă</div>
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<a class="image" href="http://ro.wikipedia.org/wiki/Fi%C8%99ier:Unitati_Cernavoda.jpg" style="background-attachment: initial; background-clip: initial; background-color: initial; background-image: none; background-origin: initial; background-position: initial initial; background-repeat: initial initial; color: #0b0080; text-decoration: none;"><img alt="" class="thumbimage" height="85" src="http://upload.wikimedia.org/wikipedia/commons/thumb/d/de/Unitati_Cernavoda.jpg/350px-Unitati_Cernavoda.jpg" style="border-bottom-color: rgb(204, 204, 204); border-bottom-style: solid; border-bottom-width: 1px; border-color: initial; border-image: initial; border-left-color: rgb(204, 204, 204); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(204, 204, 204); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(204, 204, 204); border-top-style: solid; border-top-width: 1px; border-width: initial; vertical-align: middle;" width="350" /></a><div class="thumbcaption" style="border-bottom-style: none; border-color: initial; border-image: initial; border-left-style: none; border-right-style: none; border-top-style: none; border-width: initial; font-size: 11px; line-height: 1.4em; padding-bottom: 3px !important; padding-left: 3px !important; padding-right: 3px !important; padding-top: 3px !important; text-align: left;">
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Centrala nucleară cu Unitatea I în capătul din dreapta</div>
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Unitatea I</div>
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<b>Centrala Nucleară de la <a href="http://ro.wikipedia.org/wiki/Cernavod%C4%83" style="background-attachment: initial; background-clip: initial; background-color: initial; background-image: none; background-origin: initial; background-position: initial initial; background-repeat: initial initial; color: #0b0080; text-decoration: none;" title="Cernavodă">Cernavodă</a></b> este unica din <a href="http://ro.wikipedia.org/wiki/Rom%C3%A2nia" style="background-attachment: initial; background-clip: initial; background-color: initial; background-image: none; background-origin: initial; background-position: initial initial; background-repeat: initial initial; color: #0b0080; text-decoration: none;" title="România">România</a>.</div>
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În prezent (<a href="http://ro.wikipedia.org/wiki/2011" style="background-attachment: initial; background-clip: initial; background-color: initial; background-image: none; background-origin: initial; background-position: initial initial; background-repeat: initial initial; color: #0b0080; text-decoration: none;" title="2011">2011</a>) funcționează unitățile I și II, ce produc împreună circa 18% din consumul de energie electrică al țării.</div>
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Planul inițial, datând de la începutul <a href="http://ro.wikipedia.org/wiki/Anii_1980" style="background-attachment: initial; background-clip: initial; background-color: initial; background-image: none; background-origin: initial; background-position: initial initial; background-repeat: initial initial; color: #0b0080; text-decoration: none;" title="Anii 1980">anilor 1980</a>, prevedea construcția a cinci unități. Unitatea I a fost terminată în <a href="http://ro.wikipedia.org/wiki/1996" style="background-attachment: initial; background-clip: initial; background-color: initial; background-image: none; background-origin: initial; background-position: initial initial; background-repeat: initial initial; color: #0b0080; text-decoration: none;" title="1996">1996</a>, are o putere electrica instalata de 706 <a href="http://ro.wikipedia.org/wiki/Megawatt" style="background-attachment: initial; background-clip: initial; background-color: initial; background-image: none; background-origin: initial; background-position: initial initial; background-repeat: initial initial; color: #0b0080; text-decoration: none;" title="Megawatt">MW</a> si produce anual circa 5 TWh. Unitatea II a fost pornită pe 6 mai 2007 , conectată la <a class="mw-redirect" href="http://ro.wikipedia.org/wiki/SEN" style="background-attachment: initial; background-clip: initial; background-color: initial; background-image: none; background-origin: initial; background-position: initial initial; background-repeat: initial initial; color: #0b0080; text-decoration: none;" title="SEN">sistemul energetic național</a> pe 7 august și funcționează la parametrii normali din luna septembrie <a href="http://ro.wikipedia.org/wiki/2007" style="background-attachment: initial; background-clip: initial; background-color: initial; background-image: none; background-origin: initial; background-position: initial initial; background-repeat: initial initial; color: #0b0080; text-decoration: none;" title="2007">2007</a>.</div>
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<a href="http://ro.wikipedia.org/wiki/Reactor_nuclear" style="background-attachment: initial; background-clip: initial; background-color: initial; background-image: none; background-origin: initial; background-position: initial initial; background-repeat: initial initial; color: #0b0080; text-decoration: none;" title="Reactor nuclear">Reactoarele nucleare</a> de la Cernavodă utilizează tehnologia canadiană cunoscută sub <a href="http://ro.wikipedia.org/wiki/Acronim" style="background-attachment: initial; background-clip: initial; background-color: initial; background-image: none; background-origin: initial; background-position: initial initial; background-repeat: initial initial; color: #0b0080; text-decoration: none;" title="Acronim">acronimul</a> <a href="http://ro.wikipedia.org/wiki/CANDU" style="background-attachment: initial; background-clip: initial; background-color: initial; background-image: none; background-origin: initial; background-position: initial initial; background-repeat: initial initial; color: #0b0080; text-decoration: none;" title="CANDU">CANDU</a>. <a href="http://ro.wikipedia.org/wiki/Ap%C4%83_grea" style="background-attachment: initial; background-clip: initial; background-color: initial; background-image: none; background-origin: initial; background-position: initial initial; background-repeat: initial initial; color: #0b0080; text-decoration: none;" title="Apă grea">Apa grea</a>, folosită drept <a class="new" href="http://ro.wikipedia.org/w/index.php?title=Moderator_de_neutroni&action=edit&redlink=1" style="background-attachment: initial; background-clip: initial; background-color: initial; background-image: none; background-origin: initial; background-position: initial initial; background-repeat: initial initial; color: #a55858; text-decoration: none;" title="Moderator de neutroni — pagină inexistentă">moderator</a>, este produsa la <a href="http://ro.wikipedia.org/wiki/ROMAG_PROD" style="background-attachment: initial; background-clip: initial; background-color: initial; background-image: none; background-origin: initial; background-position: initial initial; background-repeat: initial initial; color: #0b0080; text-decoration: none;" title="ROMAG PROD">ROMAG PROD</a> <a href="http://ro.wikipedia.org/wiki/Drobeta-Turnu_Severin" style="background-attachment: initial; background-clip: initial; background-color: initial; background-image: none; background-origin: initial; background-position: initial initial; background-repeat: initial initial; color: #0b0080; text-decoration: none;" title="Drobeta-Turnu Severin">Drobeta-Turnu Severin</a>.</div>
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În mod cu totul exceptional, când nivelul <a class="mw-redirect" href="http://ro.wikipedia.org/wiki/Dun%C4%83re" style="background-attachment: initial; background-clip: initial; background-color: initial; background-image: none; background-origin: initial; background-position: initial initial; background-repeat: initial initial; color: #0b0080; text-decoration: none;" title="Dunăre">Dunării</a> scade mult, iar apa de răcire nu mai poate fi pompată în instalațiile de răcire, reactoarele trebuie oprite. Acest lucru s-a întâmplat, de exemplu, în august-septembrie <a href="http://ro.wikipedia.org/wiki/2003" style="background-attachment: initial; background-clip: initial; background-color: initial; background-image: none; background-origin: initial; background-position: initial initial; background-repeat: initial initial; color: #0b0080; text-decoration: none;" title="2003">2003</a>, când centrala a fost oprită timp de trei săptămâni.</div>
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Pentru realizarea Unităților 3 și 4 de la Cernavodă a fost ales modelul unei Companii de Proiect realizată prin parteneriat între statul roman prin intermediul Nuclearelectrica și investitori privați. Cei șase investitori care au depus oferte și au fost selectați initial sunt: Arcelor Mittal România care va deține 6,2 din acțiunile viitoarei companii, Grupul CEZ Republica Cehă – 9,15%, ENEL Italia – 9,15%, GDF Suez – 9,15%, Iberdrola Spania – 6,2% și RWE Germania – 9,15%, în condițiile în care statul roman deținea 51% din acțiuni.In urma retragerii GDF Suez,Iberdrola, Grupului CEZ si RWE Germania statul roman detine actualmente(octombrie 2011) 84.65 % din actiunile SN Nuclearelectrica . Compania de proiect numita EnergoNuclear a fost înființată în <a href="http://ro.wikipedia.org/wiki/Martie" style="background-attachment: initial; background-clip: initial; background-color: initial; background-image: none; background-origin: initial; background-position: initial initial; background-repeat: initial initial; color: #0b0080; text-decoration: none;" title="Martie">martie</a> <a href="http://ro.wikipedia.org/wiki/2009" style="background-attachment: initial; background-clip: initial; background-color: initial; background-image: none; background-origin: initial; background-position: initial initial; background-repeat: initial initial; color: #0b0080; text-decoration: none;" title="2009">2009</a>, iar cele două unitați se estimează că vor fi puse în funcțiune în 2015-2016.</div>
<h2 style="background-attachment: initial; background-clip: initial; background-color: initial; background-image: none; background-origin: initial; border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; font-size: 19px; font-weight: normal; margin-bottom: 0.6em; margin-left: 0px; margin-right: 0px; margin-top: 0px; overflow-x: hidden; overflow-y: hidden; padding-bottom: 0.17em; padding-top: 0.5em; width: auto;">
<span class="editsection" style="float: right; font-size: 13px; margin-left: 5px;">[<a href="http://ro.wikipedia.org/w/index.php?title=Centrala_Nuclear%C4%83_de_la_Cernavod%C4%83&action=edit&section=1" style="background-attachment: initial; background-clip: initial; background-color: initial; background-image: none; background-origin: initial; background-position: initial initial; background-repeat: initial initial; color: #0b0080; text-decoration: none;" title="Modifică secțiunea: Reactoare">modificare</a>]</span><span class="mw-headline" id="Reactoare">Reactoare</span></h2>
<table class="prettytable" style="background-attachment: initial; background-clip: initial; background-color: #f9f9f9; background-image: initial; background-origin: initial; background-position: initial initial; background-repeat: initial initial; border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; border-collapse: collapse; border-image: initial; border-left-color: rgb(170, 170, 170); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(170, 170, 170); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(170, 170, 170); border-top-style: solid; border-top-width: 1px; font-size: 13px; margin-bottom: 1em; margin-left: 0px; margin-right: 1em; margin-top: 1em; width: 962px;"><tbody>
<tr><th bgcolor="#CFCFCF" style="background-attachment: initial; background-clip: initial; background-color: #f2f2f2; background-image: initial; background-origin: initial; background-position: initial initial; background-repeat: initial initial; border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; border-image: initial; border-left-color: rgb(170, 170, 170); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(170, 170, 170); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(170, 170, 170); border-top-style: solid; border-top-width: 1px; padding-bottom: 0.2em; padding-left: 0.2em; padding-right: 0.2em; padding-top: 0.2em; text-align: center;" width="15%;">Reactor<sup class="reference" id="cite_ref-IAEA_0-0"><a href="http://ro.wikipedia.org/wiki/Centrala_Nuclear%C4%83_de_la_Cernavod%C4%83#cite_note-IAEA-0" style="background-attachment: initial; background-clip: initial; background-color: initial; background-image: none; background-origin: initial; background-position: initial initial; background-repeat: initial initial; color: #0b0080; text-decoration: none;">[1]</a></sup></th><th bgcolor="#CFCFCF" style="background-attachment: initial; background-clip: initial; background-color: #f2f2f2; background-image: initial; background-origin: initial; background-position: initial initial; background-repeat: initial initial; border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; border-image: initial; border-left-color: rgb(170, 170, 170); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(170, 170, 170); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(170, 170, 170); border-top-style: solid; border-top-width: 1px; padding-bottom: 0.2em; padding-left: 0.2em; padding-right: 0.2em; padding-top: 0.2em; text-align: center;" width="13%;">Tip reactor</th><th bgcolor="#CFCFCF" style="background-attachment: initial; background-clip: initial; background-color: #f2f2f2; background-image: initial; background-origin: initial; background-position: initial initial; background-repeat: initial initial; border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; border-image: initial; border-left-color: rgb(170, 170, 170); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(170, 170, 170); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(170, 170, 170); border-top-style: solid; border-top-width: 1px; padding-bottom: 0.2em; padding-left: 0.2em; padding-right: 0.2em; padding-top: 0.2em; text-align: center;" width="10%;">Capacitate<br />netă</th><th bgcolor="#CFCFCF" style="background-attachment: initial; background-clip: initial; background-color: #f2f2f2; background-image: initial; background-origin: initial; background-position: initial initial; background-repeat: initial initial; border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; border-image: initial; border-left-color: rgb(170, 170, 170); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(170, 170, 170); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(170, 170, 170); border-top-style: solid; border-top-width: 1px; padding-bottom: 0.2em; padding-left: 0.2em; padding-right: 0.2em; padding-top: 0.2em; text-align: center;" width="10%;">Capacitate<br />totală</th><th bgcolor="#CFCFCF" style="background-attachment: initial; background-clip: initial; background-color: #f2f2f2; background-image: initial; background-origin: initial; background-position: initial initial; background-repeat: initial initial; border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; border-image: initial; border-left-color: rgb(170, 170, 170); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(170, 170, 170); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(170, 170, 170); border-top-style: solid; border-top-width: 1px; padding-bottom: 0.2em; padding-left: 0.2em; padding-right: 0.2em; padding-top: 0.2em; text-align: center;" width="11%;">Începutul construcției</th><th bgcolor="#CFCFCF" style="background-attachment: initial; background-clip: initial; background-color: #f2f2f2; background-image: initial; background-origin: initial; background-position: initial initial; background-repeat: initial initial; border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; border-image: initial; border-left-color: rgb(170, 170, 170); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(170, 170, 170); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(170, 170, 170); border-top-style: solid; border-top-width: 1px; padding-bottom: 0.2em; padding-left: 0.2em; padding-right: 0.2em; padding-top: 0.2em; text-align: center;" width="15%;">Conectarea la rețea</th><th bgcolor="#CFCFCF" style="background-attachment: initial; background-clip: initial; background-color: #f2f2f2; background-image: initial; background-origin: initial; background-position: initial initial; background-repeat: initial initial; border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; border-image: initial; border-left-color: rgb(170, 170, 170); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(170, 170, 170); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(170, 170, 170); border-top-style: solid; border-top-width: 1px; padding-bottom: 0.2em; padding-left: 0.2em; padding-right: 0.2em; padding-top: 0.2em; text-align: center;" width="15%;">Exploatare comercială</th></tr>
<tr><td style="border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; border-image: initial; border-left-color: rgb(170, 170, 170); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(170, 170, 170); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(170, 170, 170); border-top-style: solid; border-top-width: 1px; padding-bottom: 0.2em; padding-left: 0.2em; padding-right: 0.2em; padding-top: 0.2em;">Cernavodă-1</td><td style="border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; border-image: initial; border-left-color: rgb(170, 170, 170); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(170, 170, 170); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(170, 170, 170); border-top-style: solid; border-top-width: 1px; padding-bottom: 0.2em; padding-left: 0.2em; padding-right: 0.2em; padding-top: 0.2em;"><a href="http://ro.wikipedia.org/wiki/CANDU" style="background-attachment: initial; background-clip: initial; background-color: initial; background-image: none; background-origin: initial; background-position: initial initial; background-repeat: initial initial; color: #0b0080; text-decoration: none;" title="CANDU">CANDU</a></td><td align="right" style="border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; border-image: initial; border-left-color: rgb(170, 170, 170); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(170, 170, 170); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(170, 170, 170); border-top-style: solid; border-top-width: 1px; padding-bottom: 0.2em; padding-left: 0.2em; padding-right: 0.2em; padding-top: 0.2em;">651 MW</td><td align="right" style="border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; border-image: initial; border-left-color: rgb(170, 170, 170); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(170, 170, 170); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(170, 170, 170); border-top-style: solid; border-top-width: 1px; padding-bottom: 0.2em; padding-left: 0.2em; padding-right: 0.2em; padding-top: 0.2em;">706 MW</td><td align="right" style="border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; border-image: initial; border-left-color: rgb(170, 170, 170); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(170, 170, 170); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(170, 170, 170); border-top-style: solid; border-top-width: 1px; padding-bottom: 0.2em; padding-left: 0.2em; padding-right: 0.2em; padding-top: 0.2em;">01.07.1982</td><td align="right" style="border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; border-image: initial; border-left-color: rgb(170, 170, 170); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(170, 170, 170); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(170, 170, 170); border-top-style: solid; border-top-width: 1px; padding-bottom: 0.2em; padding-left: 0.2em; padding-right: 0.2em; padding-top: 0.2em;">11.07.1996</td><td align="right" style="border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; border-image: initial; border-left-color: rgb(170, 170, 170); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(170, 170, 170); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(170, 170, 170); border-top-style: solid; border-top-width: 1px; padding-bottom: 0.2em; padding-left: 0.2em; padding-right: 0.2em; padding-top: 0.2em;">02.12.1996</td></tr>
<tr><td style="border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; border-image: initial; border-left-color: rgb(170, 170, 170); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(170, 170, 170); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(170, 170, 170); border-top-style: solid; border-top-width: 1px; padding-bottom: 0.2em; padding-left: 0.2em; padding-right: 0.2em; padding-top: 0.2em;">Cernavodă-2</td><td style="border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; border-image: initial; border-left-color: rgb(170, 170, 170); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(170, 170, 170); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(170, 170, 170); border-top-style: solid; border-top-width: 1px; padding-bottom: 0.2em; padding-left: 0.2em; padding-right: 0.2em; padding-top: 0.2em;"><a href="http://ro.wikipedia.org/wiki/CANDU" style="background-attachment: initial; background-clip: initial; background-color: initial; background-image: none; background-origin: initial; background-position: initial initial; background-repeat: initial initial; color: #0b0080; text-decoration: none;" title="CANDU">CANDU</a></td><td align="right" style="border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; border-image: initial; border-left-color: rgb(170, 170, 170); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(170, 170, 170); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(170, 170, 170); border-top-style: solid; border-top-width: 1px; padding-bottom: 0.2em; padding-left: 0.2em; padding-right: 0.2em; padding-top: 0.2em;">655 MW</td><td align="right" style="border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; border-image: initial; border-left-color: rgb(170, 170, 170); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(170, 170, 170); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(170, 170, 170); border-top-style: solid; border-top-width: 1px; padding-bottom: 0.2em; padding-left: 0.2em; padding-right: 0.2em; padding-top: 0.2em;">706 MW</td><td align="right" style="border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; border-image: initial; border-left-color: rgb(170, 170, 170); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(170, 170, 170); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(170, 170, 170); border-top-style: solid; border-top-width: 1px; padding-bottom: 0.2em; padding-left: 0.2em; padding-right: 0.2em; padding-top: 0.2em;">01.07.1983</td><td align="right" style="border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; border-image: initial; border-left-color: rgb(170, 170, 170); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(170, 170, 170); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(170, 170, 170); border-top-style: solid; border-top-width: 1px; padding-bottom: 0.2em; padding-left: 0.2em; padding-right: 0.2em; padding-top: 0.2em;">07.08.2007</td><td align="right" style="border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; border-image: initial; border-left-color: rgb(170, 170, 170); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(170, 170, 170); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(170, 170, 170); border-top-style: solid; border-top-width: 1px; padding-bottom: 0.2em; padding-left: 0.2em; padding-right: 0.2em; padding-top: 0.2em;">28.09.2007</td></tr>
<tr><td style="border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; border-image: initial; border-left-color: rgb(170, 170, 170); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(170, 170, 170); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(170, 170, 170); border-top-style: solid; border-top-width: 1px; padding-bottom: 0.2em; padding-left: 0.2em; padding-right: 0.2em; padding-top: 0.2em;">Cernavodă-3 <sup class="reference" id="cite_ref-1"><a href="http://ro.wikipedia.org/wiki/Centrala_Nuclear%C4%83_de_la_Cernavod%C4%83#cite_note-1" style="background-attachment: initial; background-clip: initial; background-color: initial; background-image: none; background-origin: initial; background-position: initial initial; background-repeat: initial initial; color: #0b0080; text-decoration: none;">[2]</a></sup></td><td style="border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; border-image: initial; border-left-color: rgb(170, 170, 170); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(170, 170, 170); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(170, 170, 170); border-top-style: solid; border-top-width: 1px; padding-bottom: 0.2em; padding-left: 0.2em; padding-right: 0.2em; padding-top: 0.2em;"><a href="http://ro.wikipedia.org/wiki/CANDU" style="background-attachment: initial; background-clip: initial; background-color: initial; background-image: none; background-origin: initial; background-position: initial initial; background-repeat: initial initial; color: #0b0080; text-decoration: none;" title="CANDU">CANDU</a></td><td align="right" style="border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; border-image: initial; border-left-color: rgb(170, 170, 170); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(170, 170, 170); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(170, 170, 170); border-top-style: solid; border-top-width: 1px; padding-bottom: 0.2em; padding-left: 0.2em; padding-right: 0.2em; padding-top: 0.2em;">655 MW</td><td align="right" style="border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; border-image: initial; border-left-color: rgb(170, 170, 170); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(170, 170, 170); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(170, 170, 170); border-top-style: solid; border-top-width: 1px; padding-bottom: 0.2em; padding-left: 0.2em; padding-right: 0.2em; padding-top: 0.2em;">706 MW</td><td align="right" style="border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; border-image: initial; border-left-color: rgb(170, 170, 170); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(170, 170, 170); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(170, 170, 170); border-top-style: solid; border-top-width: 1px; padding-bottom: 0.2em; padding-left: 0.2em; padding-right: 0.2em; padding-top: 0.2em;">09.02.1984</td><td align="right" style="border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; border-image: initial; border-left-color: rgb(170, 170, 170); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(170, 170, 170); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(170, 170, 170); border-top-style: solid; border-top-width: 1px; padding-bottom: 0.2em; padding-left: 0.2em; padding-right: 0.2em; padding-top: 0.2em;">2014 (planificat)</td><td align="right" style="border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; border-image: initial; border-left-color: rgb(170, 170, 170); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(170, 170, 170); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(170, 170, 170); border-top-style: solid; border-top-width: 1px; padding-bottom: 0.2em; padding-left: 0.2em; padding-right: 0.2em; padding-top: 0.2em;"></td></tr>
<tr><td style="border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; border-image: initial; border-left-color: rgb(170, 170, 170); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(170, 170, 170); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(170, 170, 170); border-top-style: solid; border-top-width: 1px; padding-bottom: 0.2em; padding-left: 0.2em; padding-right: 0.2em; padding-top: 0.2em;">Cernavodă-4 <sup class="reference" id="cite_ref-2"><a href="http://ro.wikipedia.org/wiki/Centrala_Nuclear%C4%83_de_la_Cernavod%C4%83#cite_note-2" style="background-attachment: initial; background-clip: initial; background-color: initial; background-image: none; background-origin: initial; background-position: initial initial; background-repeat: initial initial; color: #0b0080; text-decoration: none;">[3]</a></sup></td><td style="border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; border-image: initial; border-left-color: rgb(170, 170, 170); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(170, 170, 170); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(170, 170, 170); border-top-style: solid; border-top-width: 1px; padding-bottom: 0.2em; padding-left: 0.2em; padding-right: 0.2em; padding-top: 0.2em;"><a href="http://ro.wikipedia.org/wiki/CANDU" style="background-attachment: initial; background-clip: initial; background-color: initial; background-image: none; background-origin: initial; background-position: initial initial; background-repeat: initial initial; color: #0b0080; text-decoration: none;" title="CANDU">CANDU</a></td><td align="right" style="border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; border-image: initial; border-left-color: rgb(170, 170, 170); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(170, 170, 170); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(170, 170, 170); border-top-style: solid; border-top-width: 1px; padding-bottom: 0.2em; padding-left: 0.2em; padding-right: 0.2em; padding-top: 0.2em;">655 MW</td><td align="right" style="border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; border-image: initial; border-left-color: rgb(170, 170, 170); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(170, 170, 170); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(170, 170, 170); border-top-style: solid; border-top-width: 1px; padding-bottom: 0.2em; padding-left: 0.2em; padding-right: 0.2em; padding-top: 0.2em;">706 MW</td><td align="right" style="border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; border-image: initial; border-left-color: rgb(170, 170, 170); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(170, 170, 170); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(170, 170, 170); border-top-style: solid; border-top-width: 1px; padding-bottom: 0.2em; padding-left: 0.2em; padding-right: 0.2em; padding-top: 0.2em;">15.08.1985</td><td align="right" style="border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; border-image: initial; border-left-color: rgb(170, 170, 170); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(170, 170, 170); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(170, 170, 170); border-top-style: solid; border-top-width: 1px; padding-bottom: 0.2em; padding-left: 0.2em; padding-right: 0.2em; padding-top: 0.2em;">2015 (planificat)</td><td align="right" style="border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; border-image: initial; border-left-color: rgb(170, 170, 170); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(170, 170, 170); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(170, 170, 170); border-top-style: solid; border-top-width: 1px; padding-bottom: 0.2em; padding-left: 0.2em; padding-right: 0.2em; padding-top: 0.2em;"></td></tr>
<tr><td style="border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; border-image: initial; border-left-color: rgb(170, 170, 170); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(170, 170, 170); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(170, 170, 170); border-top-style: solid; border-top-width: 1px; padding-bottom: 0.2em; padding-left: 0.2em; padding-right: 0.2em; padding-top: 0.2em;">Cernavodă-5 <sup class="reference" id="cite_ref-3"><a href="http://ro.wikipedia.org/wiki/Centrala_Nuclear%C4%83_de_la_Cernavod%C4%83#cite_note-3" style="background-attachment: initial; background-clip: initial; background-color: initial; background-image: none; background-origin: initial; background-position: initial initial; background-repeat: initial initial; color: #0b0080; text-decoration: none;">[4]</a></sup></td><td style="border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; border-image: initial; border-left-color: rgb(170, 170, 170); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(170, 170, 170); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(170, 170, 170); border-top-style: solid; border-top-width: 1px; padding-bottom: 0.2em; padding-left: 0.2em; padding-right: 0.2em; padding-top: 0.2em;"><a href="http://ro.wikipedia.org/wiki/CANDU" style="background-attachment: initial; background-clip: initial; background-color: initial; background-image: none; background-origin: initial; background-position: initial initial; background-repeat: initial initial; color: #0b0080; text-decoration: none;" title="CANDU">CANDU</a></td><td align="right" style="border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; border-image: initial; border-left-color: rgb(170, 170, 170); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(170, 170, 170); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(170, 170, 170); border-top-style: solid; border-top-width: 1px; padding-bottom: 0.2em; padding-left: 0.2em; padding-right: 0.2em; padding-top: 0.2em;">655 MW</td><td align="right" style="border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; border-image: initial; border-left-color: rgb(170, 170, 170); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(170, 170, 170); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(170, 170, 170); border-top-style: solid; border-top-width: 1px; padding-bottom: 0.2em; padding-left: 0.2em; padding-right: 0.2em; padding-top: 0.2em;">706 MW</td><td align="right" style="border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; border-image: initial; border-left-color: rgb(170, 170, 170); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(170, 170, 170); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(170, 170, 170); border-top-style: solid; border-top-width: 1px; padding-bottom: 0.2em; padding-left: 0.2em; padding-right: 0.2em; padding-top: 0.2em;">12.05.1987</td><td align="right" style="border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; border-image: initial; border-left-color: rgb(170, 170, 170); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(170, 170, 170); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(170, 170, 170); border-top-style: solid; border-top-width: 1px; padding-bottom: 0.2em; padding-left: 0.2em; padding-right: 0.2em; padding-top: 0.2em;">necunoscut</td><td align="right" style="border-bottom-color: rgb(170, 170, 170); border-bottom-style: solid; border-bottom-width: 1px; border-image: initial; border-left-color: rgb(170, 170, 170); border-left-style: solid; border-left-width: 1px; border-right-color: rgb(170, 170, 170); border-right-style: solid; border-right-width: 1px; border-top-color: rgb(170, 170, 170); border-top-style: solid; border-top-width: 1px; padding-bottom: 0.2em; padding-left: 0.2em; padding-right: 0.2em; padding-top: 0.2em;"></td></tr>
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Fukushima moare. Ultimele ore ale centralei nucleare</h1>
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Centrala nucleara de la Fukushima, care tine in suspans o lume intreaga, pare a-si "trai" ultimele ore de viata. Autoritatile, expertii, guvernele si chiar Japonia insasi - cu totii spun ca situatia este "apocaliptica". Acest cosmar nu pare ca se va opri.</div>
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Explozii, topirea partiala a miezului, incendii, eliberare de particule radioactive in atmosfera. Acesta este peisajul ultimelor zile la <strong>Fukushima</strong>.</div>
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Cele 6 reactoare care formeaza centrala japoneza au probleme grave si situatia tinde spre o catastrofa. Ceea ce multi au incercat sa limiteze, incepe sa scape de sub control. Situatia reactoarelor este una de cosmar, iar o lume intreaga se teme ca s-ar putea confrunta cu o catastrofa similara <strong style="font-family: Arial, Tahoma, Geneva, sans-serif;"></strong></div>
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<strong style="font-family: Arial, Tahoma, Geneva, sans-serif;"><a href="http://stirileprotv.ro/stiri/actualitate/cernobilul-cosmarul-reactivat-dupa-explozia-de-la-fukushima.html" style="color: #275586;" target="_blank"><strong>Cernobilul, cosmarul reactivat dupa explozia de la Fukushima</strong></a></strong></div>
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<a href="http://stirileprotv.ro/exclusiv/exclusiv-online/orasul-unde-vezi-moartea-cu-ochii-cernobil-la-25-de-ani-dupa-tragedie.html" style="color: #275586;" target="_blank"><strong>Orasul unde vezi moartea cu ochii: Cernobil, la 25 de ani dupa tragedie</strong></a></div>
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De altfel, purtatorul de cuvant al Guvernului francez, Francois Baroin, citat de AFP, a afirmat ca, <em>"in cel mai grav dintre scenarii"</em>, dupa accidentul nuclear din Japonia, catastrofa ar putea avea "un impact superior celei de la Cernobil".</div>
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Rugat sa comenteze declaratiile ministrului Ecologiei, Nathalie Kosciusko-Morizet, care a afirmat ca<em>"scenariul cel mai grav este posibil si chiar probabil", Baroin a afirmat ca ministrul a "evocat efectiv (in timpul Consiliului de Ministri) situatia, evolutia sa incepand de vineri, dificultatile autoritatilor japoneze in obtinerea unei raciri rapide a diferitelor reactoare".</em></div>
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<a href="http://stirileprotv.ro/stiri/international/soarta-lumii-in-mana-a-50-de-oameni-eroii-de-la-fukushima.html" style="color: #275586;" target="_blank"><strong>Soarta lumii in mainile a 50 de oameni: eroii de la Fukushima</strong></a></div>
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Centrala de la Fukushima nu va mai rezista mult timp, dar sfarsitul ei poate dezlantui teroarea nucleara in Japonia, scrie <a href="http://www.elmundo.es/elmundo/2011/03/16/internacional/1300258232.html" style="color: #275586;" target="_blank">El Mundo</a>.</div>
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<strong>Primul reactor</strong> a explodat dupa ce nu s-a reusit racirea sa. <strong>Al doilea</strong> este si mai afectat de evenimentele produse pentru ca a luat foc, a si explodat, iar peretii au fost distrusi pentru a putea fi racit cu apa din ocean. In acest moment nu exista niciun sistem de racire in functiune.</div>
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<strong>Reactoarele 5 si 6</strong>, de asemenea, se confrunta cu probleme de racire, iar temperatura din interior a crescut considerabil.</div>
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Cele mai periculoase sunt acum <strong>reactoarele 3 si 4</strong>. Primul dintre ele, afectat de o explozie, luni, are probleme serioase de racire. Nucleul s-a topit partial si sistemul de retentie este grav avariat. De aici au fost eliminate in atmosfera particule radioactive.</div>
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<a href="http://stirileprotv.ro/stiri/international/cutremurul-din-japonia-a-fost-de-9-miezul-unui-al-2-lea-reactor-se-topeste.html" style="color: #275586;" target="_blank"><strong>Discursul Imparatului. Japonia isi numara mortii</strong></a></div>
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La randul sau, <strong>reactorul 4, care este in stare "critica"</strong>, ieri au fost doua incendii, iar compartimentul in care era stocat combustibilul de racire este acum gol.</div>
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Luand in considerare toata aceasta situatie, guvernul de la Tokyo a ordonat companiei sa injecteze apa in miezul nuclear "<em>cat mai curand posibil pentru a evita un dezastru major</em>."</div>
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Flacarile din <strong>reactorul 4 </strong>au fost repede eliminate dar o explozie puternica a provocat doua gauri de 8 metri patrati in pe peretele exterior al cladirii acestuia.</div>
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Pe scurt, se estimeaza ca 70% din miezul nuclear a fost deteriorat, dintre care 33% din pagube sunt in reactorul 2.</div>
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Masurile luate de Guvern pana in prezent au inclus evacuarea cetatenilor pe o raza de 20 kilometri si stabilirea unei zone de interzicere a zborurilor pe o raza de 30 kilometri. In plus, locuitorii din regiunea Fukushima au fost sfatuiti sa stea in casa si sa nu iasa pe strada.</div>
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<a href="http://stirileprotv.ro/stiri/revista-presei/fantoma-cernobilului-bantuie-japonia-ce-vor-face-oamenii.html" style="color: #275586;" target="_blank"><strong>Fantoma Cernobilului bantuie Japonia. Ce vor face oamenii?</strong></a></div>
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Deficitul de energie de dupa cutremur a fortat autoritatile sa intrerupa consumul de curent in anumite momente ale zilei.</div>
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Agentia japoneza de securitate nucleara nu are un sistem de masurare care sa functioneze la capacitate completa, pentru ca multe dintre punctele sale nu au curent electric si nu transmit date. </div>
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<a href="http://stirileprotv.ro/stiri/international/moarte-in-chinuri-care-este-nivelul-de-la-care-radiatiile-devin-ucigatoare.html" style="color: #275586;" target="_blank"><strong>Moarte in chinuri. Care este nivelul la care radiatiile devin ucigatoare</strong></a></div>
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<a href="http://stirileprotv.ro/stiri/revista-presei/foto-uluitoare-cutremurul-si-tsunamiul-din-japonia-surprinse-din-spatiu.html" style="color: #275586;" target="_blank"><strong>FOTO uluitoare! Cutremurul si tsunamiul din Japonia surprinse din spatiu</strong></a></div>
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<span style="color: maroon;"><strong>Criza nucleara a fost adancita prin dezinformare</strong></span></div>
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<a href="http://stirileprotv.ro/stiri/international/franta-acuza-japonia-ca-minimizeaza-intentionat-alerta-nucleara.html" style="color: #275586;" target="_blank">Japonia a fost acuzata de nenumarati specialisti si in mod vehement de Franta </a>ca ar ascunde realitatea. Informatiile prezentate nu oglindeau deloc situatia din teren, iar oficialii niponi se pare ca au "coafat" stirile astfel incat sa para ca detin controlul situatiei.</div>
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In cele din urma premierul a iesit public si a declarat ca tara sa nu este in stare sa faca fata acestei crize, iar in acest moment <strong>Japonia este pregatita sa ceara cooperarea armatei americane pentru a preveni o catastrofa nucleara</strong>.</div>
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Opt nave militare americane, intre care portavionul USS Ronald Reagan si escorta sa, participa deja la operatiuni de salvare in nord-estul Japoniei.</div>
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Pe de alta parte, particulele de radiatii eliberate in atmosfera dupa exploziile repetate de la reactoarele centralui Fukushima, au fost considerate nepericuloase de catre autoritatile japoneze. Cu toate acestea, Autoritatea de aviatie mondiala a dat un aviz catre toate companiile care au zboruri in zona sa ia in considerare nivelul de radiatii crescut.</div>
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<strong style="font-family: Arial, Tahoma, Geneva, sans-serif;">Pana acum doar o companie mare a redirectionat toate zborurile de pe aeroportul din Tokyo, restul inca opereaza acolo.</strong></div>
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celei de la Cernobil, din 1986.<br />
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</strong></div>Centrala nuclearahttp://www.blogger.com/profile/15767642958983614323noreply@blogger.com0tag:blogger.com,1999:blog-9205991734369449380.post-2978129523710271592012-02-25T00:04:00.005-08:002012-02-25T00:04:57.394-08:00<br />
<table class="contentpaneopen" style="background-color: #053a66; border-collapse: collapse; color: #3d2518; font-family: Georgia, 'Times New Roman', Times, serif; font-size: 14px; line-height: 16px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; width: 630px;"><tbody>
<tr><td class="contentheading" style="border-bottom-color: rgb(233, 229, 208); border-bottom-style: solid; border-bottom-width: 1px; color: #422c22; font-size: 20px; line-height: 29px; margin-bottom: 6px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 4px; width: 596px;" width="100%"><a class="contentpagetitle" href="http://www.scientia.ro/tehnologie/39-cum-functioneaza-lucrurile/745-cum-functioneaza-o-centrala-nucleara.html" style="color: #bb4904; font-size: 16px; line-height: 23px; margin-bottom: 6px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 4px; text-decoration: none;">Cum funcţionează o centrală nucleară?</a></td><td align="right" class="buttonheading" width="100%"><a href="http://www.scientia.ro/tehnologie/39-cum-functioneaza-lucrurile/745-cum-functioneaza-o-centrala-nucleara.html?tmpl=component&print=1&page=" rel="nofollow" style="color: #305185; text-decoration: none;" title="Imprimare"><img alt="Imprimare" src="http://www.scientia.ro/templates/scientia/images/printButton.png" style="border-bottom-style: none; border-color: initial; border-image: initial; border-left-style: none; border-right-style: none; border-top-style: none; border-width: initial;" /></a></td><td align="right" class="buttonheading" width="100%"><a href="http://www.scientia.ro/component/mailto/?tmpl=component&link=207dcd172f730b8a736910e6860fcee7834ba014" style="color: #305185; text-decoration: none;" title="Email"><img alt="Email" src="http://www.scientia.ro/templates/scientia/images/emailButton.png" style="border-bottom-style: none; border-color: initial; border-image: initial; border-left-style: none; border-right-style: none; border-top-style: none; border-width: initial;" /></a></td></tr>
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<tr><td><a href="http://www.scientia.ro/tehnologie/39-cum-functioneaza-lucrurile.html" style="color: #305185; text-decoration: none;">Cum funcţionează lucrurile?</a></td></tr>
<tr><td valign="top"><span class="small" style="color: #131212; font-family: 'Lucida Grande', Lucida, Verdana, sans-serif; font-size: 10px; font-variant: small-caps; line-height: 10px;">Scris de Scientia.Ro </span> </td></tr>
<tr><td class="createdate" style="color: #131212; font-family: 'Lucida Grande', Lucida, Verdana, sans-serif; font-size: 10px; font-variant: small-caps; line-height: 10px;" valign="top">Marţi, 16 Martie 2010 08:26</td></tr>
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<img alt="Centrala nucleară - panou de comandă" border="0" src="http://www.scientia.ro/images/stories/articles/cum_functioneaza_lucrurile/centrala_nucleara/centrala_nucleara_front.jpg" style="border-bottom-color: black; border-bottom-style: solid; border-bottom-width: 1px; border-image: initial; border-left-color: black; border-left-style: solid; border-left-width: 1px; border-right-color: black; border-right-style: solid; border-right-width: 1px; border-top-color: black; border-top-style: solid; border-top-width: 1px; float: left; margin-left: 5px; margin-right: 5px;" title="Centrala nucleară - panou de comandă" />Centrala nucleară are deja o vechime de peste jumătate de secol, prima care a produs energie electrică cu uz comercial fiind construită în anul 1954 de ruşi. Dar cum funcţionează o centrală nucleară? În ce fel este transformată energia atomică în energie electrică? Citiţi articolul pentru o explicaţie succintă, pe înţelesul tuturor.</div>
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<span style="color: #3366ff;">O centrală nucleară reprezintă o instalaţie complexă cu ajutorul căreia se produce energie electrică din energie termică.</span> Până aici, nimic nuclear... Energia termică în schimb este obţinută în urma iniţierii şi întreţinerii unei reacţii nucleare de fisiune controlate realizate în reactorul nuclear. Mai simplu spus, <span style="color: #3366ff;">o centrală nucleară generează electricitate în urma procesului de fisiune a atomilor de uraniu, proces ce generează căldură şi încălzeşte apă, care prin încălzire se transformă în abur, abur ce învârte paletele unor turbine, care la rândul lor pun în mişcare generatorul producător de energie electrică.</span></div>
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<span style="background-color: #ffff99;"><strong>::: </strong></span><span style="background-color: #ffff99;"><strong>Îmbogăţirea uraniului</strong></span></div>
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Uraniul este cel mai greu element existent în natură. Nucleul acestuia are 92 de protoni şi, de regulă, 146 de neutroni, asigurându-i atomului de uraniu un număr de masă egal cu 238; simbolul: <sup>238</sup>U<sub>92</sub>. Peste 99% din uraniu este U-238. <span style="color: #3366ff;">Un procent mic, de doar 0,7% este însă U-235 şi acest izotop al uraniului este de interes în cazul producerii energiei electrice, pentru că poate fi scindat uşor şi pentru că eliberează o mare cantitate de căldură în urma scindării.</span></div>
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Probabil aţi auzit de "uraniu îmbogăţit". Acest lucru înseamnă că pentru a putea fi folosit pentru producerea de energie electrică, uraniul în stare naturală, în procent covârşitor U-238, trebuie completat cu U-235 până când acesta din urmă atinge 2% ori 3% din întreaga cantitate. <span style="color: #3366ff;">Acest proces de creare a proporţiilor potrivite între U-238 şi U-235 este procesul de îmbogăţire a uraniului.</span></div>
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<span style="color: #3366ff;"><strong><span style="background-color: #ffff99;"><span style="color: black;">::: Fisiunea nucleară</span></span></strong></span></div>
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În interiorul reactorului nuclear, aflat într-un container special, U-235 este lovit de neutroni. În urma acestor interacţiuni, atomii de uraniu se scindează în doi atomi (în mod obişnuit un atom de kripton şi unul de bariu) şi eliberează 2 ori 3 neutroni şi o cantitate uriaşă de energie sub formă de căldură. <span style="color: #3366ff;">Acest proces se numeşte fisiune nucleară.</span></div>
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<a class="highslide" href="http://www.scientia.ro/images/stories/articles/cum_functioneaza_lucrurile/centrala_nucleara/centrala_nucleara_cernavoda.jpg" style="color: #305185; outline-color: initial; outline-style: none; outline-width: initial; text-decoration: none;"><br class="Apple-interchange-newline" /><img alt="Centrala nucleară de la Cernavodă" border="0" src="http://www.scientia.ro/images/stories/thumbs/L2hvbWUvc2NpZW50aWEvcHVibGljX2h0bWwvaW1hZ2VzL3N0b3JpZXMvYXJ0aWNsZXMvY3VtX2Z1bmN0aW9uZWF6YV9sdWNydXJpbGUvY2VudHJhbGFfbnVjbGVhcmEvY2VudHJhbGFfbnVjbGVhcmFfY2VybmF2b2RhLmpwZw==.jpg" style="border-bottom-color: silver; border-bottom-style: solid; border-bottom-width: 2px; border-color: initial; border-image: initial; border-left-color: silver; border-left-style: solid; border-left-width: 2px; border-right-color: silver; border-right-style: solid; border-right-width: 2px; border-top-color: silver; border-top-style: solid; border-top-width: 2px; border-width: initial; cursor: url(http://www.scientia.ro/plugins/content/joomslide/highslide/graphics/zoomin.cur), pointer !important;" title="Centrala nucleară de la Cernavodă" /></a></div>
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Centrala nucleară de la Cernavodă</div>
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<span style="background-color: #ffff99;"><strong>::: Controlul fisiunii</strong></span></div>
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Cantitatea de energie eliberată de un gram de U-235, care conţine nu mai puţin de 2.562.553.191.489.360.000.000 atomi (ştiţi să citiţi acest număr?) este uriaşă. Prin urmare, procesul de fisiune trebuie controlat, în aşa fel încât numai cantitatea de căldură dorită să fie produsă. Acest control se realizează cu ajutorul apei grele pentru a încetini neutronii. De asemenea, bare de cadmiu ori bariu sunt introduse în container pentru a absorbi neutroni şi controla concentraţia acestora, puterea produsă de reactor rămânând constantă în timp. Dacă neutronii eliberaţi în urma reacţiei de fisiune sunt încetiniţi, creşte probabilitatea unei ciocniri atomice care să creeze căldură. Astfel se întreţine reacţia de fisiune în lanţ, care multiplică energia.</div>
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<em>Apa grea </em>sau <em>monoxidul de deuteriu</em>, este o substanţă a cărei formulă chimică este D<sub>2</sub>O sau<sup>2</sup>H<sub>2</sub>O. Din punct de vedere al proprietăţilor macroscopice şi chimice apa grea se comportă similar cu apa normală, sau "uşoară", însă atomii de hidrogen constituenţi conţin un neutron în plus în nucleu, deoarece deuteriul, sau hidrogenul greu, este un izotop al hidrogenului. </div>Centrala nuclearahttp://www.blogger.com/profile/15767642958983614323noreply@blogger.com0tag:blogger.com,1999:blog-9205991734369449380.post-88662795751674011082012-02-25T00:00:00.003-08:002012-02-25T00:01:17.681-08:00Centrala nucleara <br />
<h1 class="singlePageTitle" style="background-attachment: initial; background-clip: initial; background-color: #f9f9f9; background-image: initial; background-origin: initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; color: #910100; font-family: 'trebuchet ms', Georgia, 'Times New Roman'; font-size: 1.6em; font-weight: normal; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 5px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 20px; padding-left: 10px; padding-right: 10px; padding-top: 10px; vertical-align: baseline;">
<strong style="background-attachment: initial; background-clip: initial; background-color: transparent; background-image: initial; background-origin: initial; background-position: initial initial; background-repeat: initial initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; font-size: 20px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; vertical-align: baseline;">China a descoperit centrala nucleară sigură</strong></h1>
<span style="background-attachment: initial; background-clip: initial; background-color: #f9f9f9; background-image: initial; background-origin: initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; color: #222222; float: right; font-family: Georgia, 'Times New Roman', 'Trebuchet ms'; font-size: 13px; line-height: 17px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; vertical-align: baseline;">Scris de : <a href="http://www.ziuaveche.ro/author/d-p/" style="background-attachment: initial; background-clip: initial; background-color: transparent; background-image: initial; background-origin: initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; color: #910100; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; text-decoration: none; vertical-align: baseline;" title="Posts by D.P.">D.P.</a> 2011-03-21 20:22 <a href="http://www.ziuaveche.ro/stiinta-it/stiinta/china-a-descoperit-centrala-nucleara-sigura-26133.html#comments" style="background-attachment: initial; background-clip: initial; background-color: transparent; background-image: initial; background-origin: initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; color: #910100; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; text-decoration: none; vertical-align: baseline;" title="Comment on China a descoperit centrala nucleară sigură">2 comentarii</a></span><br />
<div style="background-attachment: initial; background-clip: initial; background-color: #f9f9f9; background-image: initial; background-origin: initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-color: rgb(225, 226, 229); border-top-style: solid; border-top-width: 1px; color: #222222; font-family: Georgia, 'Times New Roman', 'Trebuchet ms'; font-size: 13px; height: 10px; line-height: 17px; margin-bottom: 25px; margin-left: 0px; margin-right: 0px; margin-top: 0px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; vertical-align: baseline;">
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<div style="background-attachment: initial; background-clip: initial; background-color: #f9f9f9; background-image: initial; background-origin: initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; color: #222222; font-family: Georgia, 'Times New Roman', 'Trebuchet ms'; font-size: 14px; line-height: 22px; margin-bottom: 10px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; text-align: left; text-indent: 10px; vertical-align: baseline;">
<strong style="background-attachment: initial; background-clip: initial; background-color: transparent; background-image: initial; background-origin: initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; vertical-align: baseline;">Cu câteva săptămâni înainte ca valul seismic să lovească centrala nucleară de la Fukushima şi să zdruncine încrederea cetăţenilor în energia nucleară, China anunţa că lansează o tehonologie rivală, cu care va construi o reţea de reactoare mai curate, mai sigure şi mai ieftine decât cele bazate pe uraniu şi care funcţionează pe bază de torium.</strong></div>
<div style="background-attachment: initial; background-clip: initial; background-color: #f9f9f9; background-image: initial; background-origin: initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; color: #222222; font-family: Georgia, 'Times New Roman', 'Trebuchet ms'; font-size: 14px; line-height: 22px; margin-bottom: 10px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; text-align: left; text-indent: 10px; vertical-align: baseline;">
<a class="highslide" href="http://www.ziuaveche.ro/wp-content/uploads/2011/03/o-centrala-nucleara.jpg" style="background-attachment: initial; background-clip: initial; background-color: transparent; background-image: initial; background-origin: initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; color: #910100; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; text-decoration: none; vertical-align: baseline;" target="_blank"><img alt="China a descoperit centrala nucleară sigură stiinta " class="alignleft size-large wp-image-26136" height="210" src="http://www.ziuaveche.ro/wp-content/uploads/2011/03/o-centrala-nucleara-300x210.jpg" style="background-attachment: initial; background-clip: initial; background-color: transparent; background-image: initial; background-origin: initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; float: left; margin-bottom: 0px; margin-left: 0px; margin-right: 10px; margin-top: 5px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; vertical-align: baseline;" title="China a descoperit centrala nucleară sigură" width="300" /></a><a href="http://www.anunturi.ro/" style="background-attachment: initial; background-clip: initial; background-color: transparent; background-image: initial; background-origin: initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; color: #910100; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; text-decoration: none; vertical-align: baseline;" title="Anunţul">Anunţul</a> a trecut neobservat, dar în urma celor întâmplate, capătă o cu totul altă semnificaţie. Dacă ceea ce afirmă China este adevărat, <strong style="background-attachment: initial; background-clip: initial; background-color: transparent; background-image: initial; background-origin: initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; vertical-align: baseline;">peisajul energetic</strong> global s-ar putea schimba definitiv.</div>
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Academia de Ştiinte din China a explicat este că <strong style="background-attachment: initial; background-clip: initial; background-color: transparent; background-image: initial; background-origin: initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; vertical-align: baseline;">tehnologia</strong> se bazează pe <strong style="background-attachment: initial; background-clip: initial; background-color: transparent; background-image: initial; background-origin: initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; vertical-align: baseline;">reactoare</strong> alimentate cu <strong style="background-attachment: initial; background-clip: initial; background-color: transparent; background-image: initial; background-origin: initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; vertical-align: baseline;">torium</strong> şi <strong style="background-attachment: initial; background-clip: initial; background-color: transparent; background-image: initial; background-origin: initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; vertical-align: baseline;">sare lichidă</strong>.</div>
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Oamenii de ştiinţă americani au testat <strong style="background-attachment: initial; background-clip: initial; background-color: transparent; background-image: initial; background-origin: initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; vertical-align: baseline;">toriumul</strong> în anii ’40 în ideea de a-l folosi drept combustibil. <strong style="background-attachment: initial; background-clip: initial; background-color: transparent; background-image: initial; background-origin: initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; vertical-align: baseline;">Toriumul</strong> are are o eficienţă în materie de <strong style="background-attachment: initial; background-clip: initial; background-color: transparent; background-image: initial; background-origin: initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; vertical-align: baseline;">neutroni</strong>superioară <strong style="background-attachment: initial; background-clip: initial; background-color: transparent; background-image: initial; background-origin: initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; vertical-align: baseline;">uraniului</strong>, are şi o rată de <strong style="background-attachment: initial; background-clip: initial; background-color: transparent; background-image: initial; background-origin: initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; vertical-align: baseline;">fisiune</strong> mai mare, cicluri de alimentare mai lungi şi nu are nevoie de tehnici costisitoare adiacente precum <strong style="background-attachment: initial; background-clip: initial; background-color: transparent; background-image: initial; background-origin: initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; vertical-align: baseline;">separarea</strong><strong style="background-attachment: initial; background-clip: initial; background-color: transparent; background-image: initial; background-origin: initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; vertical-align: baseline;">izotopilor</strong>.</div>
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Planurile legate de <strong style="background-attachment: initial; background-clip: initial; background-color: transparent; background-image: initial; background-origin: initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; vertical-align: baseline;">torium</strong> au fost abandonate pentru că nu producea <strong style="background-attachment: initial; background-clip: initial; background-color: transparent; background-image: initial; background-origin: initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; vertical-align: baseline;">plutoniu</strong>pentru <strong style="background-attachment: initial; background-clip: initial; background-color: transparent; background-image: initial; background-origin: initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; vertical-align: baseline;">bombele nu</strong><br />
“Reactorul pe bază de torium are o rată de <strong style="background-attachment: initial; background-clip: initial; background-color: transparent; background-image: initial; background-origin: initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; vertical-align: baseline;">siguranţă</strong> uimitoare”, îşi arată entuziasmul un fost inginer de la <strong style="background-attachment: initial; background-clip: initial; background-color: transparent; background-image: initial; background-origin: initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; vertical-align: baseline;">NASA</strong>, expert în torium, Kirk Sorensen, inginer şi expert în <strong style="background-attachment: initial; background-clip: initial; background-color: transparent; background-image: initial; background-origin: initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; vertical-align: baseline;">torium</strong>, citat de <a href="http://www.telegraph.co.uk/finance/comment/ambroseevans_pritchard/8393984/Safe-nuclear-does-exist-and-China-is-leading-the-way-with-thorium.html" style="background-attachment: initial; background-clip: initial; background-color: transparent; background-image: initial; background-origin: initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; color: #910100; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; text-decoration: none; vertical-align: baseline;" target="_blank">dailytelegrap</a>h.co.uk.</div>
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“Dacă începe să se supraîncălzească, un mic dop se topeşte şi <strong style="background-attachment: initial; background-clip: initial; background-color: transparent; background-image: initial; background-origin: initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; vertical-align: baseline;">sarea</strong> curge într-un recipient. Nu are nevoie de computere sau genul acela de pompe electrice care au fost distruse în Japonia de <strong style="background-attachment: initial; background-clip: initial; background-color: transparent; background-image: initial; background-origin: initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; vertical-align: baseline;">tsunami</strong>.</div>
<div style="background-attachment: initial; background-clip: initial; background-color: #f9f9f9; background-image: initial; background-origin: initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; color: #222222; font-family: Georgia, 'Times New Roman', 'Trebuchet ms'; font-size: 14px; line-height: 22px; margin-bottom: 10px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; text-align: left; text-indent: 10px; vertical-align: baseline;">
<strong style="background-attachment: initial; background-clip: initial; background-color: transparent; background-image: initial; background-origin: initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; vertical-align: baseline;">Reactorul</strong> se salvează el însuşi. Operează la presiune atmosferică, deci nu ai genul acela de explozii de hidrogen cum au fost în Japonia. <strong style="background-attachment: initial; background-clip: initial; background-color: transparent; background-image: initial; background-origin: initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; vertical-align: baseline;">Reactoarele</strong> acestea pot trece fără probleme prin <strong style="background-attachment: initial; background-clip: initial; background-color: transparent; background-image: initial; background-origin: initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; vertical-align: baseline;">tsunami</strong>, n-ar avea pierderi de <strong style="background-attachment: initial; background-clip: initial; background-color: transparent; background-image: initial; background-origin: initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; vertical-align: baseline;">radiaţii</strong> scăpate de sub control”, a precizat Sorensen.</div>
<div style="background-attachment: initial; background-clip: initial; background-color: #f9f9f9; background-image: initial; background-origin: initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; color: #222222; font-family: Georgia, 'Times New Roman', 'Trebuchet ms'; font-size: 14px; line-height: 22px; margin-bottom: 10px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; text-align: left; text-indent: 10px; vertical-align: baseline;">
Profesorul Robert Cywinski de la Universitatea Huddersfield a subliniat că<strong style="background-attachment: initial; background-clip: initial; background-color: transparent; background-image: initial; background-origin: initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; vertical-align: baseline;">toriumul</strong> trebuie bombardat cu <strong style="background-attachment: initial; background-clip: initial; background-color: transparent; background-image: initial; background-origin: initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; vertical-align: baseline;">neutroni</strong> pentru a produce un proces de<strong style="background-attachment: initial; background-clip: initial; background-color: transparent; background-image: initial; background-origin: initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; vertical-align: baseline;">fisiune nucleară</strong>. El a declarat: “Nu există o reacţie în lanţ. <strong style="background-attachment: initial; background-clip: initial; background-color: transparent; background-image: initial; background-origin: initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; vertical-align: baseline;">Fisiunea</strong> se întrerupe în momentul în care se înrerupe fascicolul de <strong style="background-attachment: initial; background-clip: initial; background-color: transparent; background-image: initial; background-origin: initial; border-bottom-width: 0px; border-color: initial; border-image: initial; border-left-width: 0px; border-right-width: 0px; border-style: initial; border-top-width: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; outline-color: initial; outline-style: initial; outline-width: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; vertical-align: baseline;">neutroni</strong>”.</div>Centrala nuclearahttp://www.blogger.com/profile/15767642958983614323noreply@blogger.com0