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Optimization of Thermal Insulation Performance for the Porous Materials

机译：多孔材料的绝热性能的优化

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摘要

Porous materials are widely used in porous media filtration, membrane separation, catalyst substrates, solid fuel cells, insulation, and other fields. When the porous material used in the field of insulation, heat transfer characteristics become its most important performance parameters. The heat transfer characteristics of porous material is a complex issue affected not only by solid elements and porosity, it is also affected by composite structures. Therefore, how to optimize the heat transfer properties of porous materials is a problem to be urgently solved. In this paper, the numerical method is used to study the effects of pore size, pore shape, pore connectivity, porosity and so on. It is found that pore shape, pore connectivity and gas conductivity have great impacts on the heat transfer of porous materials. The effect of pore arrangement is very little. The design optimization of porosity is affected by porous material mechanical property.
机译：多孔材料广泛用于多孔介质过滤，膜分离，催化剂底物，固体燃料电池，绝缘等领域。当多孔材料用于绝缘领域时，传热特性成为其最重要的性能参数。多孔材料的传热特性是一个复杂的问题，不仅受固体元素和孔隙率的影响，而且还受到复合结构的影响。因此，如何优化多孔材料的传热性能是亟待解决的问题。本文采用数值方法研究了孔尺寸，孔形状，孔连通性，孔隙率等的影响。发现孔的形状，孔的连通性和气体传导率对多孔材料的热传递具有很大的影响。孔排列的影响很小。孔隙率的设计优化受多孔材料机械性能的影响。

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  • 来源
    《Heat Transfer Engineering》 |2018年第20期|1573-1581|共9页
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    Lanzhou Jiaotong Univ Sch Chem & Biol Engn Lanzhou Gansu Peoples R China|Lanzhou Jiaotong Univ Educ Minist Key Lab Railway Vehicle Thermal Engn Lanzhou Gansu Peoples R China;

    Lanzhou Jiaotong Univ Sch Chem & Biol Engn Lanzhou Gansu Peoples R China;

    Lanzhou Jiaotong Univ Educ Minist Key Lab Railway Vehicle Thermal Engn Lanzhou Gansu Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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