Title of article :
Analysisofalossofresidualheatremovalsystemduringmid-loopconditionsatPKLfacilityusingRELAP5/Mod3.3OriginalResearchArticle
Author/Authors :
S.Carlos، نويسنده , , J.F.Villanueva، نويسنده , , S.Martorell، نويسنده , , V.Serradell، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2008
Abstract :
Whenanuclearpowerplantisinshutdownconditionsforrefuelling,thereactorcoolantsystemwaterlevelisreduced.Thissituationisknownasmid-loopoperation,andtheresidualheatremoval(RHR)systemisusedinthissituationtoremovethedecaypowerheatgeneratedinthereactorcore.
Inmid-loopconditions,someaccidentalsituationsmayoccurwithnotanegligiblecontributiontotheplantrisk,andallinvolvethelossoftheRHRsystem.Thus,tobetterunderstandthethermal–hydraulicprocessesfollowingthelossoftheRHRduringshutdown,transientsofthiskindhavebeensimulatedusingbest-estimatecodesindifferentintegraltestfacilities.Thispaperfocusesonthesimulation,usingthebestestimatecodeRELAP5/Mod3.3,oftheexperimentE3.1conductedatthePKLfacility.ThisexperimentconsistsofthelossoftheRHRsystemwhentheplantisinmid-loopconditionsforrefuellingandwiththeprimarycircuitclosed.Inparticular,inthisexperimentthephysicalphenomenatoinvestigatearethemechanismsofheatremovalinpresenceofnitrogenandthedeborationincriticalpartsoftheprimarysystem.
Journal title :
Nuclear Engineering and Design Eslah
Journal title :
Nuclear Engineering and Design Eslah
