微重力池沸腾传热实验研究
Journal of Engineering Thermophysics(2009)
Abstract
本文实验研究了平板加热面FC-72液体的准稳态池沸腾传热现象,利用地面常重力实验、SJ-8卫星搭载微重力实验等手段,分析了不同重力、压力及过冷度条件下平板加热面上的池沸腾传热特性。微重力条件下,相近压力或过冷度时,传热系数和CHF随过冷度或压力增大而增大。相对常重力,传热曲线明显变缓,沸腾起始时的壁面过热度降低,CHF仅为常重力的40%或更低。
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Key words
microgravity,subcooling,nucleate pool boiling,plane plate heater
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