Subcooled Pool Boiling at Microgravity: Preliminary Ground-Based Experimental Results

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	Subcooled Pool Boiling at Microgravity: Preliminary Ground-Based Experimental Results
	Zhao JF(赵建福); Hu WR(胡文瑞); Wan SX(万士昕)
	2004-05-23
会议名称	2nd International Symposium on Physical Science in Space/Spacebound, Toronto, May 23-27, 2004
通讯作者	赵建福
中文摘要	A temperature-controlled pool boiling (TCPB) device was developed to perform pool boiling heat transfer studies at both normal gravity on Earth and microgravity in the drop tower Beijing and aboard a Chinese recovery satellite. Two platinum wires of 60 ?m in diameter were simultaneously used as heaters and thermometers. The lengths were 30 mm and 40 mm, respectively. The ends of wires were soldered with copper poles to provide low resistance paths for the electric current. The heater resistance, and thus the heater temperature, was kept constant by a feedback circuit similar to that used in constant-temperature hot-wire anemometry. The fluid was R113 at 0.1 Mpa and subcooled by 30 ?C nominally for all cases. The results of the experiments at normal gravity were presented. Four modes, namely single-phase convection, nucleate boiling, transition two-mode boiling, and film boiling were observed. A few data obtained from several preliminary experiments at microgravity in the drop tower Beijing were also presented. A slight increase of the heat flux was obtained.
会议录	Proceedings of the 2nd International Symposium on Physical Science in Space/Spacebound 2004 (ISPS/Spacebound),2004
学科主题	力学
内容类型	会议论文
源URL	[http://dspace.imech.ac.cn/handle/311007/13823]
专题	力学研究所_力学所知识产出(1956-2008)
通讯作者	Zhao JF(赵建福)
推荐引用方式 GB/T 7714	Zhao JF,Hu WR,Wan SX. Subcooled Pool Boiling at Microgravity: Preliminary Ground-Based Experimental Results[C]. 见:2nd International Symposium on Physical Science in Space/Spacebound, Toronto, May 23-27, 2004.