真空環境下での水噴霧冷却 : 第1報

概要

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Water flash evaporation in vaccum exhibits high performance of heat exchanger and is an important means especially for spacecraft. As the first report, this paper mainly describes the verification of the relation between the heat transfer coefficient and the saturation temperature in [Ref. (1) ] which is fundamental and essential for the phenomena mentioned above. The results show that flash evaporation has better capablities of cooling under low pressures, especially below the triple-point pressure of water than the mentioned in [Ref. (1) ] , and that the phenomenon below the triple point pressure is so unstable that it may cause rapid icing ; hence, flash evaporation is unsuitable for use under such a condition and finally that the maximum heat flux exists above the triple-point pressure for the target cooling temperature, so the pressure control is necessary for the flash evaporation cooling with high efficiency.
社団法人日本機械学会の論文
1994-12-25