Title of article :
EffectsofflowobstaclesonfilmboilingheattransferOriginalResearchArticle
Author/Authors :
S.W.Peng، نويسنده , , Remi Revellin، نويسنده , , D.C.Groeneveld، نويسنده , , A.Z.Vasic، نويسنده , , D.Shang، نويسنده , , S.C.Cheng، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2003
Abstract :
TheeffectofflowobstaclesonfilmboilingheattransferinaverticalupwardtubeisinvestigatedexperimentallyusingR134aasacoolant.Theresultsshowthatflowobstaclesenhanceheattransferdownstreamoftheobstacleandpromoterewettingtooccurinthisregion.Therewettingzoneisfoundtoincreasewithadecreaseinqualityattheobstaclelocation,andwithanincreaseinmassflux,buttheeffectofpressureisinconclusive.Therewettingeffectisstrongestneartheobstaclelocation,andweakenswithdistancefromtheobstacle,i.e.atlocationsaxiallydownstreamfromtheobstacleandcircumferentiallyawayfromtheobstacle.Thecharacteristictimeisfoundtobeagoodcorrelatingfactortocharacterizetheeffectofmassflux.Thepredictionfromthepost-dryoutlook-uptable,afterapplyingtheappropriatefluid-to-fluidmodelingtechnique,isinreasonableagreementwiththeexperimentalresults.
Journal title :
Nuclear Engineering and Design Eslah
Journal title :
Nuclear Engineering and Design Eslah
