Heat transfer enhancement by metal foam during nucleate pool boiling of refrigerant/oil mixture at a wide range of oil concentration

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	Heat transfer enhancement by metal foam during nucleate pool boiling of refrigerant/oil mixture at a wide range of oil concentration
	Zhu Y; Hu HT; Ding GL; Zhuang DW; Peng H(彭浩); Ding, GL; Shanghai Jiao Tong Univ, Inst Refrigerat & Cryogen, Dongchuan Rd 800, Shanghai 200240, Peoples R China.
发表期刊	HVAC&R RESEARCH
	2012-05-06
卷号	18 期号:3 页码:377-389
ISSN	1078-9669
摘要	Nucleate pool boiling heat transfer characteristics of refrigerant/oil mixtures on metal foam covers were experimentally investigated at a wide range of oil concentrations. The refrigerant and oil are R113 and VG68, respectively;and the oil concentration varies from 0% to 40%. The copper foams have pores per inch (ppi) of 10 and 20 and porosity from 90% to 98%. Experimental conditions include a saturation pressure of 101 kPa (14.696 psi), and heat flux from 30 to 137 kW m(-2) (2.6417 to 12.064 Btu s(-1) ft(-2)). The experimental results indicate that the nucleate pool boiling heat transfer coefficients on copper foam covers are larger than those on a plain heating surface by a maximum of 450%; the presence of oil deteriorates the nucleate pool boiling heat transfer on copper foam covers by a maximum of 90%. With the increase of oil concentration, the deterioration effect on high ppi metal foams is more obvious than that for low ppi. A correlation for predicting the nucleate pool boiling heat transfer coefficient of refrigerant/oil mixtures on metal foam covers is developed, and it agrees with 90% of the experimental data within a deviation of +/- 30%.
关键词	Copper-foam R-114-oil Mixtures Open Cells Convection Surfaces Smooth Tubes Water
学科领域	制造工艺力学
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000305250300008
项目资助者	The authors gratefully acknowledge the support of National Nature Science Foundation of China (50906048) and China Postdoctoral Science Foundation (20090460618) for this study.
论文分区	Q3
引用统计	被引频次：19[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/46585
专题	微重力重点实验室
通讯作者	Ding, GL; Shanghai Jiao Tong Univ, Inst Refrigerat & Cryogen, Dongchuan Rd 800, Shanghai 200240, Peoples R China.
推荐引用方式 GB/T 7714	Zhu Y,Hu HT,Ding GL,et al. Heat transfer enhancement by metal foam during nucleate pool boiling of refrigerant/oil mixture at a wide range of oil concentration[J]. HVAC&R RESEARCH,2012,18,3,:377-389.
APA	Zhu Y.,Hu HT.,Ding GL.,Zhuang DW.,Peng H.,...&Shanghai Jiao Tong Univ, Inst Refrigerat & Cryogen, Dongchuan Rd 800, Shanghai 200240, Peoples R China..(2012).Heat transfer enhancement by metal foam during nucleate pool boiling of refrigerant/oil mixture at a wide range of oil concentration.HVAC&R RESEARCH,18(3),377-389.
MLA	Zhu Y,et al."Heat transfer enhancement by metal foam during nucleate pool boiling of refrigerant/oil mixture at a wide range of oil concentration".HVAC&R RESEARCH 18.3(2012):377-389.

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