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首页> 外文期刊>International Journal of Heat and Mass Transfer >Numerical investigation of a novel manifold micro-pin-fin heat sink combining chessboard nozzle-jet concept for ultra-high heat flux removal
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Numerical investigation of a novel manifold micro-pin-fin heat sink combining chessboard nozzle-jet concept for ultra-high heat flux removal

机译：结合棋盘喷嘴-喷射概念的新型歧管微针翅片散热器的数值研究

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摘要

In this paper, a novel heat sink combining the manifold flow distributor, impinging nozzle-jet, and micro pin-fin concepts is proposed. The flow distribution structure of the heat sink is inspired by black and white fields of the chessboard. Every inlet nozzle is surrounded by four outlet nozzles and vice versa. A 3-dimensional numerical simulation model of the basic heat sink structure is introduced to investigate the thermal and hydrodynamic performances. Several configurations with different pin-fin and nozzle geometries and its sensitivity to the geometrical parameters are discussed for optimization. Designs with different numbers of pin-fins in the unit cell of heat sink are also compared. The results show that, for a 2 x 2 cm(2) chip or photovoltaic, a total thermal resistance of 9.37 x 10(-6) Km(2)/W is achieved at a flow rate of 1 L/min and a pressure drop of 4928 Pa. A maximum cooling capacity of 700 W/cm(2) can be satisfied with the temperature difference between the fluid inlet and chip of 65.5 K, and the temperature non uniformity of the heating surface of only 2.33 K. The numerical results indicate that the novel heat sink shows great advantages of both uniform flow distribution and ultra-high heat flux cooling. (C) 2018 Elsevier Ltd. All rights reserved.
机译：在本文中，提出了一种新颖的散热器，该散热器结合了歧管流量分配器，冲击喷嘴射流和微型针翅式概念。散热器的流量分配结构受到棋盘黑白场的启发。每个入口喷嘴被四个出口喷嘴围绕，反之亦然。介绍了基本散热器结构的三维数值模拟模型，以研究热力和流体动力性能。为了优化，讨论了几种具有不同销钉和喷嘴几何形状的配置及其对几何参数的敏感性。还比较了在散热器的单元电池中具有不同数量的针状翅片的设计。结果表明，对于2 x 2 cm（2）的芯片或光伏电池，在1 L / min的流速和压力下可实现9.37 x 10（-6）Km（2）/ W的总热阻降低4928 Pa。最大冷却能力为700 W / cm（2），流体入口和切屑之间的温差为65.5 K，而加热表面的温度不均匀性仅为2.33K。结果表明，新型散热器具有均匀的流量分布和超高热通量冷却的巨大优势。 （C）2018 Elsevier Ltd.保留所有权利。

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  • 来源
    《International Journal of Heat and Mass Transfer》 |2018年第ptab期|1206-1218|共13页
  • 作者

    Ju Xing; Xu Chao; Zhou Yiting; Liao Zhirong; Yang Yongping;

  • 作者单位

    North China Elect Power Univ, MOE, Key Lab Condit Monitoring & Control Power Plant E, Beijing 102206, Peoples R China;

    North China Elect Power Univ, MOE, Key Lab Condit Monitoring & Control Power Plant E, Beijing 102206, Peoples R China;

    North China Elect Power Univ, MOE, Key Lab Condit Monitoring & Control Power Plant E, Beijing 102206, Peoples R China;

    North China Elect Power Univ, MOE, Key Lab Condit Monitoring & Control Power Plant E, Beijing 102206, Peoples R China;

    North China Elect Power Univ, MOE, Key Lab Condit Monitoring & Control Power Plant E, Beijing 102206, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Micro-pin-fin; Manifold; Impinging-jet; Cooling; Heat sink;

    机译：微针翅片;歧管;喷射喷嘴;冷却;散热片;

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