Title of article :
Singlerodexperimentsontransientvoidbehaviorduringlow-pressurereactivity-initiatedaccidentsinlightwaterreactorsOriginalResearchArticle
Author/Authors :
YuMaruyama، نويسنده , , HideakiAsaka، نويسنده , , AkiraSatou، نويسنده , , HideoNakamura، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2006
Abstract :
Aseriesofexperimentsforfasttransientvoidbehaviorsduringcoldshutdownreactivity-initiatedaccidentsinlightwaterreactorshasbeenperformedwithasinglesimulatedfuelrodattheatmosphericpressure.Afast-responseimpedancetechniquewasappliedtothevoidfractionmeasurement.Itwasconfirmedthat,basedonthecomparisonwithX-raytechnique,theimpedancetechniquewascapableofmeasuringvoidfractionwithinanallowablerangeofaccuracyforfasttransienttwo-phaseflows.Experimentaldatawasaccumulatedconcerningtheonsetofnetvaporgeneration,localvoidfraction,watertemperatureandpressure.TheobservedtendencyontheonsetofnetvaporgenerationwasqualitativelyagreedwiththeSahaandZubermodel.However,themodeloverestimatedlocalwatersubcoolingattheonsetofnetvaporgeneration.Inletwatersubcoolinglargelyinfluencedthevariationoflocalvoidfraction.Itwasobservedthatlargerinletwatersubcoolingresultedinrepeatedgrowthandcollapseofvoidstosuppressacontinuousincreaseinvoidfraction.
Journal title :
Nuclear Engineering and Design Eslah
Journal title :
Nuclear Engineering and Design Eslah
