Title of article :
AssessmentstudyofthecoupledcodeRELAP5/PARCSagainstthePeachBottomBWRturbinetriptestOriginalResearchArticle
Author/Authors :
AnisBousbiaSalah، نويسنده , , GiorgioM.Galassi، نويسنده , , FrancescoD’Auria، نويسنده , , Bo?tjanKon?ar، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2005
Abstract :
Themodelingofcomplextransientsinnuclearpowerplants(NPP)remainsachallengingtopicforbestestimatethree-dimensionalcoupledcodecomputationaltools.Thistechniqueis,nowadays,extensivelyusedforsimulatingtransientsthatinvolvecorespatialasymmetricphenomenaandstrongfeedbackeffectsbetweencoreneutronicsandreactorloopthermal–hydraulics.Inthisframework,thePeachBottomBWRturbinetripexperiment2isconsidered.Thetestinvolvesarapidpositivereactivityadditionintothecoregeneratedbyawaterhammerload.ToperformanumericalsimulationofsuchphenomenonareferencecasewascalculatedusingthecoupledcodeRELAP5/PARCS.Anoveralldatacomparisonshowsgoodagreementbetweencalculatedandmeasuredpressurewavetrendinthecoreregion.However,thepredictedpowerresponseduringtheexcursionphasedidnotmatchcorrectlytheexperimentaltendency.Forthispurpose,aseriesofsensitivityanalyseshavebeencarriedouttoidentifythemostprobablereasonsofsuchdiscrepancy.Itwasfoundoutthattheuncertaintiesrelatedtothecross-sectionsmodelingandtothethermal–hydraulicclosurerelationshipsarethemainsourceoftheincorrectpowerfeedbackresponseduringthetransient.
Journal title :
Nuclear Engineering and Design Eslah
Journal title :
Nuclear Engineering and Design Eslah
