Title of article :
CalculationoftheVVER-1000coolanttransientbenchmarkusingthecoupledcodesystemsDYN3D/RELAP5andDYN3D/ATHLETOriginalResearchArticle
Author/Authors :
Y.Kozmenkov، نويسنده , , S.Kliem، نويسنده , , U.Grundmann، نويسنده , , U.Rohde، نويسنده , , F.-P.Weiss، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2007
Abstract :
Plant-measureddataprovidedbytheOECD/NEAVVER-1000coolanttransientbenchmarkprogrammewereusedtovalidatetheDYN3D/RELAP5andDYN3D/ATHLETcoupledcodesystems.Phase1ofthebenchmark(V1000CT-1)referstoanexperimentthatwasconductedduringthecommissioningoftheKozloduyNPPUnit6inBulgaria.Inthisexperiment,thefourthmaincoolantpumpwasswitchedonwhilsttheremainingthreewererunningnormaloperatingconditions.Theexperimentwasconductedat27.5%ofthenominallevelofthereactorpower.Thetransientischaracterizedbyarapidincreaseintheprimarycoolantflowthroughthecore,andasaconsequence,adecreaseofthespace-dependentcoreinlettemperature.Thecontrolrodswerekeptintheiroriginalpositionsduringtheentiretransient.ThecoupledsimulationsperformedonbothDYN3D/RELAP5andDYN3D/ATHLETwerebasedonthesamereactormodel,includingidenticalmaincoolantpumpcharacteristics,boundaryconditions,benchmark-specifiednucleardatalibraryandnearlyidenticalnodalizationschemes.Inadditiontovalidationofthecoupledcodesystemsagainstmeasureddata,acode-to-codecomparisonbetweensimulationresultshasalsobeenperformedtoevaluatetherespectivethermalhydraulicmodelsofthesystemcodesRELAP5andATHLET.
Journal title :
Nuclear Engineering and Design Eslah
Journal title :
Nuclear Engineering and Design Eslah
