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Heat Transfer Research

年間 18 号発行

ISSN 印刷: 1064-2285

ISSN オンライン: 2162-6561

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Indexed in

NUMERICAL ANALYSIS OF THE THERMAL PERFORMANCE OF A NOVEL DOUBLE-LAYERED HEAT SINK WITH STAGGERED PIN FINS

巻 50, 発行 8, 2019, pp. 757-772
DOI: 10.1615/HeatTransRes.2018026449
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要約

A new design of a heat sink, called double-layered staggered pin-fin heat sink (DL-SPFHS), is proposed in this work, and its thermal performance is investigated numerically. The thermal performance of DL-SPFHS was compared with the commonly used double-layered microchannel heat sink (DL-MCHS) at the same volume flow rate and overall geometric dimensions. The maximum wall temperature on the bottom wall of DL-SPFHS is 13.2 K lower than that of DL-MCHS. Furthermore, the effects of two geometric parameters, namely, the pin-fin dimension ratio of the fin length to fin width and pin-fin spacing ratio of the gap length to fin width, on thermal resistance and pressure drop were analyzed. With the increase in the pin-fin dimension ratio, the thermal resistance of DL-SPFHS decreased first and then increased, and with the pin-fin dimension ratio of 3, DL-SPFHS achieved the lowest thermal resistance which is 5.3% lower than that of the DL-SPFHS with the ratio of 1. However, the thermal resistance of DL-SPFHS increased linearly with increase of the pin-fin spacing ratio. The total pressure drop decreased significantly with increase in either the pin-fin dimension ratio or pin-fin spacing ratio.

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によって引用された
  1. Liu Yang, Huang Yicang, Xu Mingliang, Zhang Shanshan, Liu Pengfei, Numerical study on novel double-layered heat sink with optimized pin fins, 2019 20th International Conference on Electronic Packaging Technology(ICEPT), 2019. Crossref

  2. Huang Yicang, Xu Mingliang, Li Hui, Shen Shengnan, Song Xinzhong, Liu Hongmin, Waili Adili, Zhao Liang, Wei Wei, Novel thermal design of micro-bream-fin heat sink using contour-extraction-based (CEB) method, International Journal of Thermal Sciences, 165, 2021. Crossref

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