{"id":214,"date":"2021-05-20T06:05:00","date_gmt":"2021-05-20T06:05:00","guid":{"rendered":"http:\/\/localhost\/nuc\/?p=214"},"modified":"2025-04-25T07:03:36","modified_gmt":"2025-04-25T07:03:36","slug":"canalul-de-combustibil","status":"publish","type":"post","link":"https:\/\/nuclear.ro\/en\/canalul-de-combustibil\/","title":{"rendered":"CANALUL DE COMBUSTIBIL"},"content":{"rendered":"<p><strong>Obiectiv<\/strong><\/p>\n\n\n\n<p>Dezvoltarea de competen\u0163e \u015fi servicii privind operarea economic\u0103 \u015fi predictibil\u0103 a canalelor de combustibil din reactorul CANDU de la CNE Cernavod\u0103, pe baza investiga\u0163iilor experimentale, teoretice, a rezultatelor inspec\u0163iilor periodice \u015fi a examin\u0103rii ex-service a tuburilor de presiune \u00eenlocuite de la U1 CNE Cernavod\u0103.<\/p>\n\n\n\n<p><strong>Direc\u021bii de cercetare:<\/strong><\/p>\n\n\n\n<ol type=\"1\">\n<li><strong>Actualizare baz\u0103 de date experimentale privind Mecanismele de Deformare si de Mecanica Ruperii pentru componente structurale din reactoarele nucleare energetice<\/strong><\/li>\n<\/ol>\n\n\n\n<ul>\n<li>Actualizare baz\u0103 de date experimentale privind mecanismele de deformare \u015fi de mecanica ruperii ale componentelor Canalului de Combustibil CANDU \u00een condi\u0163ii de func\u0163ionare \u00eendelungat\u0103:<ul><li>Teste mecanice de trac\u021biune (ecua\u021bii constitutive);<\/li><\/ul>\n<ul>\n<li>Teste mecanice de oboseal\u0103 (curbe S-N);<\/li>\n\n\n\n<li>Teste mecanice de fluaj (ecua\u021bii constitutive);<\/li>\n\n\n\n<li>Teste de mecanica ruperii: m\u0103surarea tenacit\u0103\u0163ii la rupere (KIC, integrala-J, ini\u021bierea fisur\u0103rii DHC, viteza fisur\u0103rii DHC);<\/li>\n\n\n\n<li>Analize micro-structurale \u0219i de mecanica defect\u0103rii (SEM, metalografice, raze X, etc.);<\/li>\n\n\n\n<li>Valorificarea expertizei de analiz\u0103 dezvoltat\u0103 \u00een cadrul Programului 2, \u00een vederea evalu\u0103rii propriet\u0103\u0163ilor termo-mecanice ale unor materiale structurale de genera\u021bie IV.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p>2. <strong>Activit\u0103\u0163i de CD privind Integritatea Structural\u0103 a Tuburilor de Presiune \u0219i a componentelor Canalelor de Combustibil CANDU<\/strong><\/p>\n\n\n\n<ul>\n<li>Dezvoltarea de aplica\u0163ii \u00een mediul de programare MATLAB privind metodologia zonei de proces \u00een vederea preven\u0163iei ini\u0163ierii fisur\u0103rii DHC;<\/li>\n\n\n\n<li>Dezvoltarea de aplica\u0163ii privind utilizarea metodei elementului finit pentru evaluarea st\u0103rii de tensiuni \u0219i deforma\u0163ii \u00een componentele canalului de combustibil CANDU (VisualFEA, etc.);<\/li>\n\n\n\n<li>Dezvoltarea de aplica\u0163ii privind metode moderne de analiz\u0103 \u00een mecanica deform\u0103rii \u0219i mecanica ruperii (re\u0163ele neuronale artificiale \u00een mediul MATLAB);<\/li>\n\n\n\n<li>Dezvoltarea de aplica\u021bii privind modelarea parametrilor de mecanica ruperii (FEACrack, etc.);<\/li>\n\n\n\n<li>Dezvoltarea de aplica\u0163ii privind analize de defectare pe baza rezultatelor inspec\u0163iilor periodice;<\/li>\n\n\n\n<li>Analize rapoarte COG, elaborare rapoarte informative \u0219i propuneri de studii\/ activit\u0103\u0163ii \u00een Pr 2 \u00een concordan\u0163\u0103 cu activit\u0103\u0163ile COG.<\/li>\n<\/ul>\n\n\n\n<p>3. <strong>Activit\u0103\u0163i CD privind calificarea LEPI pentru evaluarea propriet\u0103\u0163ilor termo-mecanice si micro-structurale ale tuburilor de presiune iradiate \u00eenlocuite de la U1 CNE Cernavod\u0103<\/strong><\/p>\n\n\n\n<ul>\n<li>Evaluarea hidrogenului\/deuteriului \u00een&nbsp; tubului de presiune \u00een condi\u0163ii normale de operare (evaluare hidrogen echivalent din unit\u0103\u0163ile CNE Cernavod\u0103, ob\u0163inere modele, ecua\u0163ii constitutive, criterii de rupere, baze de date);<\/li>\n\n\n\n<li>Evaluare propriet\u0103\u0163i termo-mecanice \u015fi de mecanica ruperii pe probele de tub de presiune aliaj Zr-2.5%Nb (ob\u0163inere modele, ecua\u0163ii constitutive, criterii de rupere, baze de date);<\/li>\n\n\n\n<li>Dezvoltare solu\u0163ii tehnice \u0219i metodologii de testare \u0219i examinare probe pentru implementare \u00een LEPI (dezvoltare echipamente, preparare \u0219i analiz\u0103 probe).<\/li>\n<\/ul>\n\n\n\n<p>4. <strong>Monitorizarea Programului de CD 2 \u0219i diseminarea rezultatelor<\/strong><\/p>\n\n\n\n<ul>\n<li>Analiza \u015fi monitorizarea activit\u0103\u0163ilor CD desf\u0103\u015furate \u00een cadrul Pr 2 Canalul de Combustibil;<\/li>\n\n\n\n<li>Elaborarea Programului preliminar;<\/li>\n\n\n\n<li>Elaborarea activit\u0103\u0163ilor CD din cadrul temelor;<\/li>\n\n\n\n<li>Diseminarea rezultatelor;<\/li>\n\n\n\n<li>Participare conferin\u0163e;<\/li>\n\n\n\n<li>Publicare lucr\u0103ri \u00een reviste de profil \u015ftiin\u0163ific;<\/li>\n\n\n\n<li>Elaborare lucr\u0103ri state-of-the-art privind problematica Canalelor de Combustibil CANDU 600 pentru utilizare \u00een preg\u0103tirea profesional\u0103 a personalului din activit\u0103\u0163ile R&amp;D.<\/li>\n<\/ul>\n\n\n\n<p><strong>Contact person<\/strong> CS III Viorel Vasile Ionescu; e-mail: <a href=\"http:\/\/viorel.ionescu@nuclear\">viorel.ionescu@nuclear<\/a>;<\/p>","protected":false},"excerpt":{"rendered":"<p>Obiectiv Dezvoltarea de competen\u0163e \u015fi servicii privind operarea economic\u0103 \u015fi predictibil\u0103 a canalelor de combustibil din reactorul CANDU de la CNE Cernavod\u0103, pe baza investiga\u0163iilor experimentale, teoretice, a rezultatelor inspec\u0163iilor periodice \u015fi a examin\u0103rii ex-service a tuburilor de presiune \u00eenlocuite de la U1 CNE Cernavod\u0103. Direc\u021bii de cercetare: 2. Activit\u0103\u0163i de CD privind Integritatea Structural\u0103&hellip;<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[5],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>CANALUL DE COMBUSTIBIL - ICN-Pitesti<\/title>\n<meta name=\"description\" content=\"Institutul de Cercetari Nucleare Pitesti a fost infiintat in 1971, ca unitate de importanta strategica, avand ca domeniu de activitate cercetarea stiintifica, proiectarea, ingineria tehnologica si responsabilitatea stiintifica si tehnica pentru dezvoltarea energeticii nucleare in Romania.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/nuclear.ro\/en\/canalul-de-combustibil\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"CANALUL DE COMBUSTIBIL - 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