Title of article :
DimensionlessparametersinstabilityanalysisofheatedchannelswithfluidsatsupercriticalpressuresOriginalResearchArticle
Author/Authors :
WalterAmbrosini، نويسنده , , MedhatSharabi، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2008
Abstract :
Thepaperproposesdimensionlessparametersfortheanalysisofstabilityinheatedchannelswithsupercriticalfluids.Theparametersaredevisedbasingontheclassicalphasechangeandsub-coolingnumbersadoptedinthecaseofboilingchannels,proposinganovelformulationmakinguseoffluidpropertiesatthepseudo-criticaltemperatureasafunctionofpressure.Theadoptedformulationfordimensionlessdensityofagivenfluidprovidesauniquedependencewithrespecttodimensionlessenthalpy,inareasonablywiderangeofsystempressures,thusgivinggeneralitytothepredictionsofunstableconditionsobtainedasafunctionofdimensionlessparameters.Itisshownthattheseparametersallowsettingupquantitativestabilitymapsforasingleheatedchannelwithimposedoverallpressuredrop,inanalogywiththeonesproposedinpreviousworkconcerningboilingchannels.Similaritieswiththeboilingchannelstabilityphenomenaarepointedout,alsosupportingtheconclusionswithsystemcodepredictions.
Journal title :
Nuclear Engineering and Design Eslah
Journal title :
Nuclear Engineering and Design Eslah
