Nucleate Pool Boiling Heat Transfer on a Micro-Pin-Finned Surface in Short-Term Microgravity

	Nucleate Pool Boiling Heat Transfer on a Micro-Pin-Finned Surface in Short-Term Microgravity
	Zhang YH; Zhao JF(赵建福); Wei JJ; Xue YF
刊名	HEAT TRANSFER ENGINEERING
	2017
通讯作者邮箱	jjwei@mail.xjtu.edu.cn
卷号	38 期号:6 页码:594-610
ISSN号	0145-7632
通讯作者	Wei, JJ (reprint author), Xi An Jiao Tong Univ, State Key Lab Multiphase Flow Power Engn, Xian 710049, Peoples R China.
产权排序	[Zhang, Yonghai; Wei, Jinjia; Xue, Yanfang] Xi An Jiao Tong Univ, State Key Lab Multiphase Flow Power Engn, Xian 710049, Peoples R China; [Zhao, Jianfu] Chinese Acad Sci, Inst Mech, Key Lab Micrograv, Natl Micrograv Lab, Beijing, Peoples R China
中文摘要	Nucleate boiling heat transfer of air-dissolved FC-72 on a micro-pin-finned surface was experimentally investigated in microgravity by utilizing the drop tower facility in Beijing. The dimensions of the silicon chips were 10mm x 10mm x 0.5mm and on these, two kinds of micro-pin-fins with the dimensions of 30 x 30 x 60m(3) and 50 x 50 x 120m(3) (width x thickness x height, named PF30-60 and PF50-120) were fabricated by the dry etching technique. Nucleate pool boiling on a smooth surface was also studied under both Earth gravity and microgravity for comparison. In general, the micro-pin-fins showed better heat transfer performance when compared with a smooth surface, both under Earth gravity and microgravity. In microgravity, this is mainly due to the fact that bubbles generated on micro-pin-finned surface can depart from the heater surface continuously. For micro-pin-fins, the reduced-gravity critical heat flux was about two-thirds of that in the Earth gravity experiment, but almost three times as large as that for the smooth surface, which is larger than that in the terrestrial experiment. Under different gravity levels, PF50-120 shows a little better heat transfer than that of PF30-60, mainly due to larger heat transfer area. Besides, the fin gap of PF30-60 may generate a larger flow resistance for microconvection around the fin side walls, resulting in a lower heat transfer performance.
分类号	Q3
类目[WOS]	Thermodynamics ; Engineering, Mechanical ; Mechanics
研究领域[WOS]	Thermodynamics ; Engineering ; Mechanics
收录类别	SCI ; EI
原文出处	http://dx.doi.org/10.1080/01457632.2016.1200377
语种	英语
WOS记录号	WOS:000392434900003
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/60111]
专题	力学研究所_国家微重力实验室
推荐引用方式 GB/T 7714	Zhang YH,Zhao JF,Wei JJ,et al. Nucleate Pool Boiling Heat Transfer on a Micro-Pin-Finned Surface in Short-Term Microgravity[J]. HEAT TRANSFER ENGINEERING,2017,38(6):594-610.
APA	Zhang YH,赵建福,Wei JJ,&Xue YF.(2017).Nucleate Pool Boiling Heat Transfer on a Micro-Pin-Finned Surface in Short-Term Microgravity.HEAT TRANSFER ENGINEERING,38(6),594-610.
MLA	Zhang YH,et al."Nucleate Pool Boiling Heat Transfer on a Micro-Pin-Finned Surface in Short-Term Microgravity".HEAT TRANSFER ENGINEERING 38.6(2017):594-610.