Title of article
InvestigationoncondensationinpresenceofanoncondensablegasforawiderangeofReynoldsnumberOriginalResearchArticle
Author/Authors
N.KMaheshwari، نويسنده , , DSaha، نويسنده , , R.KSinha، نويسنده , , MAritomi، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2004
Pages
20
From page
219
To page
238
Abstract
Atheoreticalmodelhasbeendevelopedtostudythelocalheattransfercoefficientofacondensingvapourinthepresenceofanoncondensablegas,wherethegas/vapourmixtureisflowingdownwardinsideaverticaltube.Thetwo-phaseheattransferisanalysedusinganannularflowpatternwithaliquidfilmatthetubewallandaturbulentgas/vapourcore.Thegas/vapourcoreismodeledusingtheanalogybetweenheatandmasstransfer.ThemodelincorporatesNusseltequationwithMcAdamsmodifierandBlangettimodelforcalculatingthefilmheattransfercoefficient,MoodyandWalliscorrelationstoaccountforfilmwavinesseffectongas/vapourboundarylayer.Thesuctioneffectduetocondensation,developingflowandpropertyvariationofthegasphaseisalsoconsidered.Acomparativestudyofheattransfercoefficientandvapourmassflowratehasbeenmadewithvariousmodelstoaccountforcondensatefilmresistanceandcondensatefilmroughness.ResultsshowthatforveryhighReynoldsnumber,thecondensationheattransfercoefficientishigherthanthefilmheattransfercoefficient.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2004
Journal title
Nuclear Engineering and Design Eslah
Record number
894654
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