Title of article
Experimentalstudyonconvectiveheattransferofwaterflowinaheatedtubeundernaturalcirculation
Author/Authors
RuichangYang، نويسنده , , RuoleiLiu، نويسنده , , YongZhong، نويسنده , , TaoLiu، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2006
Pages
7
From page
1902
To page
1908
Abstract
Thispaperreportsonanexperimentalstudyontransitionalheattransferofwaterflowinaheatedverticaltubeundernaturalcirculationconditions.Intheexperimentsthelocalandaverageheattransfercoefficientswereobtained.Theexperimentaldatawerecomparedwiththepredictionsbyaforcedflowcorrelationavailableintheliterature.ThecomparisonsshowthattheNusseltnumbervalueinthefullydevelopedregionisabout30%lowerthanthepredictionsbytheforcedflowcorrelationduetoflowlaminarizationinthelayerinducedbyco-currentbulknaturalcirculationandfreeconvection.ByusingtheRayleighnumberRatorepresenttheinfluenceoffreeconvectiononheattransfer,theempiricalcorrelationsforthecalculationoflocalandaverageheattransferbehaviorinthetubeatnaturalcirculationhavebeendeveloped.Theempiricalcorrelationsareingoodagreementwiththeexperimentaldata.Basedontheexperimentalresults,theeffectofthethermalentry-lengthbehavioronheattransferdesigninthetubeundernaturalcirculationwasevaluated.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2006
Journal title
Nuclear Engineering and Design Eslah
Record number
941309
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