| 单相流体通过多孔金属换热器换热性能的理论分析 |
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| 引用本文： | 程文龙,韩丰云,韦文静.单相流体通过多孔金属换热器换热性能的理论分析[J].化工学报,2011,62(10):2721-2725. |
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| 作者姓名： | 程文龙 韩丰云 韦文静 |
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| 作者单位： | 中国科学技术大学热科学和能源工程系,安徽合肥,230027 |
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| 基金项目： | 国家自然科学基金项目(50876096); 中央高校基本科研费专项资金~~ |
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| 摘 要： | 泡沫金属具有非常大的比表面积和良好的导热性能,在强迫对流情况下,具有很强的换热能力.通过建立泡沫金属在强迫对流的情况下的换热模型,得到了泡沫金属高度、孔密度、孔隙率和空气流速的变化对其换热性能的影响.分析结果显示:增大泡沫金属换热器的高度、孔密度、空气流速和减小孔隙率,都能提高换热器的换热性能；当这4个参数各自变化到一...
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| 关 键 词： | 泡沫金属 热阻 强迫对流 |
Theoretical analysis on heat transfer in porous metal foam heat exchanger |
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| CHENG Wenlong,HAN Fengyun,WEI Wenjing.Theoretical analysis on heat transfer in porous metal foam heat exchanger[J].Journal of Chemical Industry and Engineering(China),2011,62(10):2721-2725. |
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| Authors: | CHENG Wenlong HAN Fengyun WEI Wenjing |
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| Affiliation: | CHENG Wenlong,HAN Fengyun,WEI Wenjing(Department of Thermal Science and Energy Engineering,University of Science and Technology of China,Hefei 230027,Anhui,China) |
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| Abstract: | Porous metal foam presents excellent heat transfer performance in forced convection,because it has large specific surface area and good thermal conductivity.A mathematical model of heat transfer in porous metal foam under forced convection conditions was built,and the effects of the porous metal foam height,pore density,porosity,and air velocity on the heat transfer performance were investigated.The analysis results show that the heat transfer increases with the increase of porous metal foam height,pore den... |
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| Keywords: | porous metal foam thermal resistance forced convection |
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