Title of article
ApplicationofmechanisticcriteriaofcladdingoxideshellfailuretotheanalysisofcoredegradationsimulatedinbundlemeltdowntestsOriginalResearchArticle
Author/Authors
M.S.Veshchunov، نويسنده , , A.V.Boldyrev، نويسنده , , B.Toth، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2008
Pages
11
From page
2219
To page
2229
Abstract
Inthispaper,thestronginfluenceofthecladfailurecriteriaonthecalculatedscenarioofbundledegradationwasdemonstratedonthebasisofcomparativeanalysisofPhebusFPandPBF–SFDtestsusingtheSVECHA/QUENCH(S/Q)code.Themainpeculiarityoftheproposedmechanisticcriteriaisthattheyarebasedontheactualgeometryofdegradedfuelrodsandnotonaconstant,user-definedfailuretemperature.Thisallowsbettermodellingconcerningtheformationoflocalmoltenpool(s)intheupperpartofbundleandthetimingofsubsequentmaterialsrelocationsfromthelocalmoltenpool(s).Ingeneral,themechanisticcriteriadevelopedallowonetoreasonablycalculatethebundledegradationprogressioninbothtests.Therefore,itisrecommendedtousethesenew,mechanisticcladdingfailurecriteriainthesevereaccidentsystemcodesaswell.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2008
Journal title
Nuclear Engineering and Design Eslah
Record number
895177
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