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	Experimental observation of jet flow and liquid exploding emission from mini/micro tubes during boiling
	Wu, D. ; Peng, X. F. ; Wang, B. X.
	2010-05-10 ; 2010-05-10
会议名称	PROCEEDINGS OF THE MICRO/NANOSCALE HEAT TRANSFER INTERNATIONAL CONFERENCE 2008, PTS A AND B ; 1st ASME Micro/Nanoscale Heat Transfer International Conference ; Tainan, TAIWAN ; Web of Science
关键词	micro/mini tube emission micro nucleation boiling HEAT-TRANSFER MICROCHANNELS Engineering, Mechanical Nanoscience & Nanotechnology Physics, Applied
中文摘要	A series of experimental investigations were conducted to visually observe the fundamental features of boiling nucleation of water in micro capillary tubes covered with transparent metal film and ethanol in mini tubes winded with a heating wire as a heater. Normally, boiling nucleation and/or bubble generation were not observed even at very high heat fluxes compared with usual nucleate boiling situations. In mini tubes violent jet flows formed and played an important role of triggering the emission, while in micro tubes the liquid and/or vapor was instantaneously emitted as the applied heat flux reached a certain high value, rather than initiating nucleate boiling and jet flows which was much weaker than exploding emission. After the exploding emission, an ultra thin liquid film formed on the tube wall and evaporated intensely, causing a perceptible wall temperature drop.; Natl Cheng Kung Univ
会议录出版者	AMER SOC MECHANICAL ENGINEERS ; NEW YORK ; THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
语种	英语 ; 英语
内容类型	会议论文
源URL	[http://hdl.handle.net/123456789/19651]
专题	清华大学
推荐引用方式 GB/T 7714	Wu, D.,Peng, X. F.,Wang, B. X.. Experimental observation of jet flow and liquid exploding emission from mini/micro tubes during boiling[C]. 见:PROCEEDINGS OF THE MICRO/NANOSCALE HEAT TRANSFER INTERNATIONAL CONFERENCE 2008, PTS A AND B, 1st ASME Micro/Nanoscale Heat Transfer International Conference, Tainan, TAIWAN, Web of Science.

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