疎液性面上の凝縮曲線の特性に関する研究 : エチレングリコール蒸気の測定および凝縮特性の検討

概要

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The aspect of condensation shifts from dropwise to film condensation as the cooling intensity increases on a lyophobic surface. The condensation curve, which shows the change of the heat flux against the surface subcooling, exhibits the characteristic N-shape. In order to understand the characteristics of the condensation curve, the measurement of the local heat transfer quantities for ethylene glycol vapor under the various vapor temperatures and velocities and the observation of the aspect of condensate were performed using the relatively long surface concerning the effect of the condensate flow. On the basis of both the results of those experiments and the previous report for propylene glycol vapor, the dependencies of the maximum heat flux on the position of the heat transfer surface and the quantitative relations among the basic parameters determining the characteristics of local condensation curve were clarified.
社団法人日本機械学会の論文
1994-03-25