Author/Authors :
A.VJones، نويسنده , , SDickinson، نويسنده , , CdePascale، نويسنده , , NHanniet، نويسنده , , LHerranz، نويسنده , , FDeRosa، نويسنده , , GHenneges، نويسنده , , JLanghans، نويسنده , , CHousiadas، نويسنده , , VWichers، نويسنده , , JBirchley، نويسنده , , SPaci، نويسنده , , FMartin-Fuertes، نويسنده ,
Abstract :
TheEuropeanCommission-fundedshared-costactionprojectPHEBEN2bringstogether13partnerorganisationstounderstandthesourcetermaspectsoftheintegralPhebusFPexperiments,tovalidateintegralLWRsevereaccidentcodesagainstthetestdata,todevelopandapplycriteriaregardingthestrengthsandweaknessesofthecodesforplantapplications,andtoproposeguidelinesfortheiroptimumuseforthispurpose.Atthehalf-waypointoftheproject,contributionstothefinalinterpretationreportofthefirstPhebustestFPT0havebeencompletedandworkontheinterpretationofthefollowingtestisproceeding.AdetailedinvestigationbyCFDandparticletrackingappearstohaveidentifiedthecauseofthesystematicunderpredictionofdepositioninthesteamgeneratortubeofthePhebuscircuit.Containmentcalculationsusinglumped-parametercodeshavebeensupplementedbyextensiveCFDanalyses,revealingcomplexcirculationpatternswithintherelativelysimplecontainmentgeometryofPhebus.IodinechemistrystudieshavebeenmadeofbothFPT0andFPT1.Concerningcriteriaandcodeassessmentforplantapplications,ashortlistofsafety-importantphenomenaexploredinPhebushasbeenprepared,andpartnershavedraftedareportanalysingforeachphenomenonitssafetyimportance,theexperimentaldataavailable,themodellingapproachadoptedinPSAcodes,andtheexpecteduncertainties.
