ミスト冷却の冷却能力の高精度予測に関する研究 : 第2報,伝熱面表面のぬれ性の影響

概要

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In the present work, a transient method is used to study the cooling characteristics of mist cooling. The effects of surface wettability on the heat transfer coefficient and the minimum temperature of the high temperature region, namely, the film boiling region, were experimentally investigated. The heat transfer surface was made of aluminum and was 15mm in diameter and 2mm in thickness. The wettability was varied by surface treatment to the heat transfer surface. The experimental conditions of mist flow were as follows: the air velocity was V_a=20 m/s, the temperature of the water droplet was T_l=21℃, and the volumetric-droplet-flow-rate was D=0.000 57 - 0.004 72 m^3/m^2s. The minimum temperature of the high temperature region was found to increase when the wettability increased.
社団法人日本機械学会の論文
1989-09-25