Title of article :
Simulantmeltexperimentsonperformanceofthein-vesselcorecatcherOriginalResearchArticle
Author/Authors :
Kyoung-HoKang، نويسنده , , Rae-JoonPark، نويسنده , , Sang-BaikKim، نويسنده , , K.Y.Suh، نويسنده , , F.B.Cheung، نويسنده , , J.L.Rempe، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2007
Abstract :
Inordertoenhancethefeasibilityofin-vesselretention(IVR)ofmoltencorematerialduringasevereaccidentforhigh-powerreactors,anin-vesselcorecatcher(IVCC)wasdesignedandevaluatedaspartofajointUnitedStates-KoreanInternationalNuclearEnergyResearchInitiative(INERI).TheproposedIVCCisexpectedtoincreasethethermalmarginforsuccessofIVRbyprovidingan“engineeredgap”forheattransferfrommaterialsthatrelocateduringasevereaccidentandpotentiallyservingasasacrificialmaterialunderasevereaccident.Inthisstudy,LAVA-GAPexperimentswereperformedtoinvestigatethethermalandmechanicalperformanceoftheIVCCusingthealuminameltassimulant.TheLAVA-GAPexperimentsaimtoexaminethefeasibilityandsustainabilityoftheIVCCunderthevarioustestconditionsusing1/8thscalehemisphericaltestsections.AsafeasibilitytestoftheproposedIVCCinthisINERIproject,theeffectsofIVCCbasesteelmaterials,internalcoatingmaterials,andgapsizebetweentheIVCCandthevessellowerheadwereexamined.ThetestresultsindicatedthattheinternallycoatedIVCChashighthermalperformancecomparedwiththeuncoatedIVCC.Intermsofintegrityofthebasesteel,carbonsteelissuperiortostainlesssteelandtheeffectofbondcoatisfoundtobetrivialforthetestsperformedinthisstudy.ThethermalloadismitigatedviaboilingheatremovalinthegapbetweentheIVCCandthevessellowerhead.Thecurrenttestresultsimplythatgapslessthan10mmarenotenoughtoguaranteeeffectivecoolinginducedbywateringressionandsteamventingtherethrough.SelectionofendurablematerialandpertinentgapsizeisneededtoimplementtheproposedIVCCconceptintoadvancedreactordesigns.
Journal title :
Nuclear Engineering and Design Eslah
Journal title :
Nuclear Engineering and Design Eslah
