应用数值模拟方法研究微观因子对聚氨酯硬泡导热系数的影响

doi:10.19784/j.cnki.issn1672-0172.2021.01.003

家电科技 ›› 2021, Vol. 0 ›› Issue (1): 25-31.doi: 10.19784/j.cnki.issn1672-0172.2021.01.003

应用数值模拟方法研究微观因子对聚氨酯硬泡导热系数的影响

余远明¹, 王明¹, 陈志锋¹, 方文振², 陶文铨²

1.美的集团广东佛山 528311;
2.西安交通大学热流科学与工程教育部重点实验室陕西西安 710049

发布日期:2021-03-02
作者简介:余远明,工学硕士（材料学专业）,研究方向：保温材料研究及其应用技术。地址：广东省佛山市顺德区北滘镇美的全球创新中心7栋3楼。E-mail：yuym2@midea.com。

Research on the influence of microscopic factors on the thermal conductivity of rigid polyurethane foams through a numerical simulation method

YU Yuanming¹, WANG Ming¹, CHEN Zhifeng¹, FANG Wenzhen², TAO Wenquan²

1. Midea Group Foshan 528311;
2. MOE Key Laboratory of Thermo-Fluid Science and Engineering of XI’AN JIAOTONG University Xi’an 710049

Published:2021-03-02

摘要/Abstract

摘要： 聚氨酯硬质泡沫材料是一种应用非常广泛的典型保温隔热材料,其等效导热系数与微观结构密切相关。基于不同聚氨酯硬质泡沫的扫描电镜图像,结合实验测试与分析,采用格子Boltzmann数值模拟方法,研究了聚氨酯硬质泡沫的等效导热系数及其与各微观影响因子之间的定量化关系,并基于研究结果提出了优化聚氨酯硬质泡沫材料隔热性能的方案。

关键词: 聚氨酯硬质泡沫, 等效导热系数, 数值模拟, 孔径, 孔隙率

Abstract: Rigid polyurethane foams are typical thermal insulation materials widely used in different areas. The equivalent thermal conductivity of rigid polyurethane foams is closely related to the microstructures. Based on the SEM photographs of different rigid polyurethane foams, experimental tests and analysis results, the quantitative relationship between the thermal conductivity of rigid polyurethane foams and microscopic factors was studied by the Lattice Boltzmann numerical simulation method. Based on the results, an optimized scheme for the thermal insulation properties of rigid polyurethane foams was proposed.

Key words: Rigid polyurethane foam, Equivalent thermal conductivity, Numerical simulation, Pore size, Porosity

中图分类号:

余远明, 王明, 陈志锋, 方文振, 陶文铨. 应用数值模拟方法研究微观因子对聚氨酯硬泡导热系数的影响[J]. 家电科技, 2021, 0(1): 25-31.

YU Yuanming, WANG Ming, CHEN Zhifeng, FANG Wenzhen, TAO Wenquan. Research on the influence of microscopic factors on the thermal conductivity of rigid polyurethane foams through a numerical simulation method[J]. Journal of Appliance Science & Technology, 2021, 0(1): 25-31.

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应用数值模拟方法研究微观因子对聚氨酯硬泡导热系数的影响

Research on the influence of microscopic factors on the thermal conductivity of rigid polyurethane foams through a numerical simulation method

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