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 | |
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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