化工学报2016，Vol.67Issue(6)：2218-2223,6.DOI:10.11949/j.issn.0438-1157.20151712
孔密度对泡沫金属内湿空气的换热与压降特性影响分析
Analysis of influence of pore density on heat transfer and pressure drop characteristics of wet air in metal foams
摘要
Abstract
The heat transfer and pressure drop characteristics of wet air in metal foams with different pore density were experimentally investigated, and the comprehensive performance of metal foam heat exchangers was analyzed. The test sample is copper foam, the PPI value of the tested metal foam covers 5—40 and the porosity is 95%. The results showed that the heat transfer coefficient increased initially and then decreased with the increase of PPI values due to the presence of the condense water. It reached up to the maximum value as the pore density was 15 PPI. The pressure drop increased with increasing pore density and the increment was more obvious as PPI value was higher than 20. The comprehensive performance was the best for the metal foam with 15 PPI by considering both the heat transfer coefficient and pressure drop.关键词
泡沫金属/孔密度/换热/压降/湿空气Key words
metal foam/pore density/heat transfer/pressure drop/wet air分类
能源科技引用本文复制引用
翁晓敏,胡海涛,赖展程,庄大伟,丁国良..孔密度对泡沫金属内湿空气的换热与压降特性影响分析[J].化工学报,2016,67(6):2218-2223,6.基金项目
国家自然科学基金项目（51576122）；上海市自然科学基金项目（15ZR1422000）。@@@@supported by the National Natural Science Foundation of China (51576122) and the Natural Science Foundation of Shanghai (15ZR1422000) （51576122）
