Influence of structure on drainage performance of metal foam

被引：0
|
作者：
Lai Z. [1 ]
Hu H. [1 ]
Zhuang D. [1 ]
Ding G. [1 ]
机构：
[1] Institute of Refrigeration & Cryogenics Engineering, Shanghai Jiao Tong University, Shanghai
来源：
Huagong Xuebao/CIESC Journal | 2016年 / 67卷 / 07期
基金：
中国国家自然科学基金; 上海市自然科学基金;
关键词：
Dehumidification; Drainage; Flow; Metal foam; Porous media; Structure;
D O I：
10.11949/j.issn.0438-1157.20151958
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Metal foam has very large specific surface area, and it has great potential in dehumidification. The key for designing metal foam heat exchanger for dehumidification is to promote the drainage performance of metal foam. The influence of structure factors on drainage performance of metal foam with three different surface wettability was investigated by dynamic dip test in this study. The results showed that, the drainage performance was deteriorated with the increase of pore density or height and promoted with the increase of porosity. For hydrophobic samples, the drainage performance of 5-40 PPI metal foams was promoted, while water retention was reduced by 26%-60%. For hydrophilic samples, the drainage performance of 5-10PPI metal foam was promoted with the maximum reduction of water retention of 23%, while the drainage performance of 15-40PPI metal foam was deteriorated with the maximum increment of water retention of 13%. © All Right Reserved.
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收藏
页码：2756 / 2760
页数：4
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