Title of article :
Modelingofvoid,fastpowerandgraphitetemperaturereactivitycoefficientsmeasurementsforthevalidationofRELAP5-3DRBMK-1500reactormodelOriginalResearchArticle
Author/Authors :
EUspuras، نويسنده , , AKaliatka، نويسنده , , EBubelis، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2004
Abstract :
ThispaperdealswiththemodelingofRBMK-1500specifictransientstakingplaceatIgnalinaNPP:measurementsofvoidandfastpowerreactivitycoefficients,aswellaschangeofgraphitecoolingconditionstransient.ThesimulationofthesetransientswasperformedusingRELAP5-3DcodemodelofRBMK-1500reactor.AttheIgnalinaNPPvoidandfastpowerreactivitycoefficientsaremeasuredonaregularbasisandbasedontheobtainedexperimentalresultstheactualvaluesofthesereactivitycoefficientsaredetermined.Graphitetemperaturereactivitycoefficientattheplantisdeterminedbychanginggraphitecoolingconditionsinthereactorcavity.Thistypeoftransientisuniqueandimportantfromthepointofviewofmodelvalidationforthegapbetweenfuelchannelandthegraphitebricks.Themeasurementresults,obtainedduringthistransient,enabledtodeterminethethermalconductivitycoefficientforthisgapandtovalidatethegraphitetemperaturereactivityfeedbackmodel.TheperformedvalidationofRELAP5-3DmodelofIgnalinaNPPRBMK-1500reactorallowedtoimprovethemodel,whichinthefuturewouldbeusedforthesafetysubstantiationcalculationsofRBMK-1500reactors.
Journal title :
Nuclear Engineering and Design Eslah
Journal title :
Nuclear Engineering and Design Eslah
