滴状凝縮曲線の研究 : 表面吸着性促進剤を用いた銅面上におけるプロピレングリコール,エチレングリコール,グリセリン蒸気の滴状から膜状への遷移 : その1

概要

論文の詳細を見る
In order to determine the condensation mechanisms of the transition from dropwise to filmwise condensation heat transfer, dropwise condensation curves on a copper surface adsorbing a common monolayer type promoter, trilauryl trithiophosphite, are measured precisely. The substances used were those having various physical properties, i.e. propylene glycol, ethylene glycol and glycerol vapors, at several reduced pressures and vapor forces. As the condensing surface subcooling increases in steady states, an abrupt change from drop type to film type occurs, and the dropwise condensation curves become discontinuous in the case of all vapors at comparatively high vapor pressures, although the curves are continuous for propylene glycol and glycerol vapors at low vapor pressures. the surface subcoolings at the points where these discontinuities start are also shown and discussed.
社団法人日本機械学会の論文
1986-04-25