Title of article
Post-testcalculationanduncertaintyanalysisoftheexperimentQUENCH-07withthesystemcodeATHLET-CDOriginalResearchArticle
Author/Authors
HenriqueAustregesilo، نويسنده , , ChristineBals، نويسنده , , KlausTrambauer، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2007
Pages
11
From page
1693
To page
1703
Abstract
Intheframeofdevelopmentalassessmentandcodevalidation,apost-testcalculationofthetestQUENCH-07wasperformedwithATHLET-CD.ThesystemcodeATHLET-CDisbeingdevelopedforbest-estimatesimulationofaccidentswithcoredegradationandforevaluationofaccidentmanagementprocedures.Itappliesthedetailedmodelsofthethermal-hydrauliccodeATHLETinanefficientcouplingwithdedicatedmodelsforcoredegradationandfissionproductsbehaviour.ThefirststepoftheworkwasthesimulationofthetestQUENCH-07applyingthemodellingoptionsrecommendedinthecodeUserʹsManual(referencecalculation).Theglobalresultsofthiscalculationshowedagoodagreementwiththemeasureddata.Thiscalculationwascomplementedbyasensitivityanalysisinordertoinvestigatetheinfluenceofacombinedvariationofcodeinputparametersonthesimulationofthemainphenomenaobservedexperimentally.Resultsofthissensitivityanalysisindicatethatthemainexperimentalmeasurementslaywithintheuncertaintyrangeofthecorrespondingcalculatedvalues.Amongthemaincontributorstotheuncertaintyofcoderesultsaretheheattransfercoefficientduetoforcedconvectiontosuperheatedsteam–argonmixture,thethermalconductivityoftheshroudisolationandtheexternalheaterrodresistance.UncertaintiesonmodellingofB4Coxidationdonotaffectsignificantlythetotalcalculatedhydrogenreleaserates.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2007
Journal title
Nuclear Engineering and Design Eslah
Record number
941352
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