Pool boiling heat transfer in microgravity

CORC > 力学研究所 > 中国科学院力学研究所 > 力学所知识产出(1956-2008)

	Pool boiling heat transfer in microgravity
	Zhao JF(赵建福); Yan N; Li J; Li ZD; Hu WR(胡文瑞); Ohta H
	2007
会议名称	58th International Astronautical Congress 2007
会议日期	September 24, 2007 - September 28, 2007
会议地点	Hyderabad, India
关键词	Boiling curves Chinese Exponential functions Heating methods Nucleate pool boiling Plate heater Pool boiling Pool boiling heat transfers Subcooling Transition boiling
中文摘要	The pool boiling heat transfer of FC-72 on a plain plate with a heating area of 15*15 mm2 in different pressure and subcooling has been studied experimentally both in normal gravity on the ground and in microgravity aboard the Chinese recoverable satellite SJ-8. A quasi-steady heating method is adopted, in which the heating voltage is controlled as an exponential function with time. Three modes of heat transfer, namely single-phase natural convection, nucleate boiling, and transition boiling, are observed, while the nucleate pool boiling are the major subject for discussion in the present paper. In normal gravity, the present data is compared with those obtained by other researchers, and a satisfactory agreement is evident and warrants reasonable confidence in the data. Compared with terrestrial experiments, the boiling curves in microgravity are considerably gentle, and CHF is no more than 40% of that in terrestrial condition. In microgravity, influences on boiling curves of the pressure and subcooling are similar with those in normal gravity, namely that the heat transfer coefficient and CHF will increase with subcooling for the same pressure, and that they will also increase with pressure for the same subcooling. Copyright IAF/IAA. All rights reserved.
收录类别	EI
会议录	International Astronautical Federation - 58th International Astronautical Congress 2007
语种	英语
内容类型	会议论文
源URL	[http://dspace.imech.ac.cn/handle/311007/60330]
专题	力学研究所_力学所知识产出(1956-2008)
推荐引用方式 GB/T 7714	Zhao JF,Yan N,Li J,et al. Pool boiling heat transfer in microgravity[C]. 见:58th International Astronautical Congress 2007. Hyderabad, India. September 24, 2007 - September 28, 2007.