下向水平面上の膜状凝縮に及ぼす多孔質排液帳の影響

概要

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Experimental and analytical studies were made of the effect of fitting porous drainage strips to a surface, on the condensation heat transfer performance of downward-facing horizontal surfaces. A smooth surface and two finned surfaces with and without the porous drainage strips were tested for condensation of R-113 and methanol. For the finned surfaces a maked increase in the average heat transfer coefficient was obtained by use of the porous drainage strip. The maximum values of the augmentation ratios as compared to the smooth surface were 9.0 and 12.2 for R-113 and methanol, respectively. An analytical mode was developed for laminar film condensation on a finned surface with the porous drainage strip. the numerical results compared well with the measurements.
一般社団法人日本機械学会の論文
1986-03-25