Thermal Performance of Metal Foam Heat Sink With Pin Fins for Nonuniform Heat Flux Electronics Cooling

Yongtong Li; Liang Gong; Minghai Xu; Yogendra Joshi

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Thermal Performance of Metal Foam Heat Sink With Pin Fins for Nonuniform Heat Flux Electronics Cooling

机译：金属泡沫散热器的热性能，具有用于非均匀热通量电子冷却的销翅片

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In this paper, a concept of metal foam heat sink with pin fins (MFPF heat sink) is proposed to improve the cooling performance of high-powered electronics with nonuniform heat flux. Numerical simulations are carried out to investigate the thermohydraulic performance of MFPF heat sink, and the metal foam (MF) heat sink and traditional pin fin (PF) heat sink are employed for comparison. The capability of MFPF heat sink in handling nonuniform heat flux is examined under different power levels. It indicates that the MFPF heat sink greatly enhances the heat transfer performance, due to the common effects of the improved flow distribution and enhanced overall effective thermal conductivity (ETC). Results also show that the MFPF heat sink promotes the improvement of the bottom wall temperature uniformity. Porosity has more pronounced effects on heat transfer performance of MFPF heat sink than pore density. A nonuniform distribution heat flux (15-80-15 W/cm~2 ) can be successfully dissipated using the proposed MFPF heat sink with the junction temperature below 95 °C at Re of 500.

机译：本文采用销翅片（MFPF散热器）的金属泡沫散热器的概念，以提高高通电电子器件具有非均匀热通量的冷却性能。进行数值模拟，以研究MFPF散热器的热液压性能，而金属泡沫（MF）散热器和传统销翅片（PF）散热器被用于比较。在不同功率水平下检查MFPF散热器在处理非均匀热通量的情况。它表明MFPF散热器大大提高了传热性能，由于改进的流量分布和增强的总有效导热系数（ETC）的共同效果。结果还表明，MFPF散热器促进了底壁温度均匀性的提高。孔隙度对MFPF散热器的传热性能具有更明显的影响，而不是孔密度。可以使用所提出的MFPF散热器（15-80-15W / cm〜2）使用所提出的MFPF散热器成功地散发，在500的RE的接线下温度低于95℃。

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来源
《Journal of Electronic Packaging》 |2021年第1期|011006.1-011006.10|共10页
作者
Yongtong Li; Liang Gong; Minghai Xu; Yogendra Joshi;
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作者单位

College of New Energy China University of Petroleum (East China) Qingdao 266580 China The George W. Woodruff School of Mechanical Engineering Georgia Institute of Technology Atlanta GA 30332-0405;

College of New Energy China University of Petroleum (East China) Qingdao 266580 China;

College of New Energy China University of Petroleum (East China) Qingdao 266580 China;

The George W. Woodruff School of Mechanical Engineering Georgia Institute of Technology Atlanta GA 30332-0405;

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正文语种 eng
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metal foam; heat sink; heat transfer; electronics cooling;

机译：金属泡沫;散热器;传播热量;电子冷却;

Thermal Performance of Metal Foam Heat Sink With Pin Fins for Nonuniform Heat Flux Electronics Cooling

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