Title of article
Heattransfertosupercriticalfluidsflowinginchannels—empiricalcorrelations(survey)OriginalResearchArticle
Author/Authors
IgorL.Pioro، نويسنده , , HussamF.Khartabil، نويسنده , , RomneyB.Duffey، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2004
Pages
23
From page
69
To page
91
Abstract
Thisliteraturesurveyisdevotedtotheproblemofheattransferoffluidsatsupercriticalpressuresincludingnearcriticalregion.
Theobjectivesaretoassesstheworkthatwasdoneintheareaofheattransferatsupercriticalpressures,tounderstandthespecificsofheattransferattheseconditions,tocomparedifferentpredictionmethodsforsupercriticalheattransferintubesandbundles,andtochoosethemostreliableones.
Thecomparisonsshowedthereisasignificantdifferenceinheattransfercoefficientvaluescalculatedaccordingtovariouscorrelations.Onlysomecorrelationsshowsimilarresults,whicharequiteclosetotheexperimentaldatafornormalsupercriticalheattransferinwaterandcarbondioxide.Also,noonecorrelationcanaccuratelypredictthemagnitudeandonsetofdeterioratedheattransfer.
Theexhaustiveliteraturesearch,whichincludedhundredsofpapers,showedthatthemajorityofcorrelationswereobtainedintubesandjustfewoftheminotherflowgeometriesincludingbundles.
Thevariationsinthepredictionofsupercriticalheattransferarerelatedtothesignificantchangesinthermophysicalpropertiesnearthecriticalandpseudocriticalpoints.Therefore,adiscussiononthegeneraltrendsofvariousthermophysicalpropertiesatnearcriticalandpseudocriticalpointsisalsoincluded.
Basedonseveralchosencorrelations,theheattransfercoefficientsandtemperatureprofilesintheCANDU-Xreactorcooledwithsupercriticalwaterwerecalculated.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2004
Journal title
Nuclear Engineering and Design Eslah
Record number
894725
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