Condensation of Ethylene Glycol on Horizontal Integral-Fin Tubes

摘要: The problem of heat transfer during condensation on horizontal finned tbes is extremely complex. difficulty arises from the essentially three-dimensiona character condensate flow, together with significant surface tension effects. fact that enhancement can significantly exceed area augmentation may be attrubutable in part to small effective plate heights associated fin flanks and also effects locally thinning film. Progress has been made toward theoretical understanding for related phenomenon static liquid retention finne tubes. Experimentally, difficult by requirement high accuracy measuring relatively vapor-side coefficient need avoid errors result presence noncondensing gas or occurrence dropwise condensation. large number variables involved presents difficulty. present note reports continuation a systematic experimental study. New data ethylene glycol are given here.