期刊
EXPERIMENTAL THERMAL AND FLUID SCIENCE
卷 52, 期 -, 页码 128-138出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.expthermflusci.2013.09.003
关键词
Pool boiling; Metal foam; V-shaped groove; Distribution; Material; Pore density
资金
- National Key Projects of Fundamental R/D of China (973 Project) [2013CB228303]
- China Postdoctoral Science Foundation [2013M540360]
Pool boiling heat transfer of open-celled metal foam with V-shaped grooves for high pore densities has been investigated experimentally at atmospheric pressure in saturated deionized water. The foam materials are copper and nickel. The pore densities are 80 PPI, 100 PPI and 130 PPI, while the porosity and foam thickness remain the fixed values of 0.95 and 4 mm, respectively. The V-shaped grooves distributions are single-directional and crossing. The parametric study is performed by varying groove width and number. In the present study, the maximum heat flux is 1.47 x 10(6)W m(-2). Boiling patterns on foam surfaces are captured by a high speed camera. The results show that V-shaped groove significantly influences the pool boiling heat transfer performance of metal foam. Grooves' effect heavily depends on their width, number, distribution and foam material, pore density. (C) 2013 Elsevier Inc. All rights reserved.
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