Title of article
Effectofinterfacialwavymotiononfilmboilingheattransferfromisothermaldownward-facinghemispheresOriginalResearchArticle
Author/Authors
ChansooKim، نويسنده , , KuneY.Suh، نويسنده , , JoyL.Rempe، نويسنده , , FanB.Cheung، نويسنده , , SangB.Kim، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2005
Pages
14
From page
2141
To page
2154
Abstract
Filmboilingheattransfercoefficientsforadownward-facinghemisphericalsurfacearemeasuredfromthequenchingtestsinDownward-BoilingExperimentLaminarTransitionApparatus(DELTA).TwotestsectionsaremadeofcoppertomaintainlowBiotnumbers.Theouterdiametersofthehemispheresare120and294mm,respectively.Thethicknessofallthetestsectionsis30mm.Theeffectofdiameteronfilmboilingheattransferisquantifiedutilizingresultsobtainedfromthetestsections.Themeasureddataarecomparedwiththenumericalpredictionsfromlaminarfilmboilinganalysis.ThemeasuredheattransfercoefficientsarefoundtobegreaterthanthosepredictedbytheconventionallaminarflowtheoryonaccountoftheinterfacialwavymotionincurredbytheHelmholtzinstability.Incorporationofthewavymotionmodelconsiderablyimprovestheagreementbetweentheexperimentalandnumericalresultsintermsofheattransfercoefficient.Inaddition,thefilmboilingwasvisualizedusingadigitalcamera.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2005
Journal title
Nuclear Engineering and Design Eslah
Record number
895934
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