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
Pages
10
From page
1727
To page
1736
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
Serial Year
2005
Journal title
Nuclear Engineering and Design Eslah
Record number
894953
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