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Enhancement of convective heat transfer in an air-cooled heat exchanger using interdigitated impeller blades

机译:使用叉指式叶轮叶片增强风冷热交换器中的对流传热

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摘要

The enhancement of convective heat transfer through a finned heat sink using interdigitated impeller blades is presented. The experimentally investigated heat sink is a subcomponent of an unconventional heat exchanger with an integrated fan, designed to meet the challenges of thermal management in compact electronic systems. The close integration of impeller blades with heat transfer surfaces results in a decreased thermal resistance per unit pumping power. The performance of the parallel plate air-cooled heat sink was experimentally characterized and empirically modeled in terms of nondimensional parameters. Dimensionless heat fluxes as high as 48 were measured, which was shown to be about twice the heat transfer rate of a traditional heat sink design using pressure-driven air flow at the same mass flow rate.
机译:提出了使用叉指式叶轮叶片增强通过翅片散热器的对流传热。经过实验研究的散热器是带有集成风扇的非常规热交换器的子组件,旨在满足紧凑型电子系统中的热管理挑战。叶轮叶片与传热表面的紧密结合导致单位抽运功率的热阻降低。根据无量纲参数,对平行板风冷散热器的性能进行了实验表征和经验建模。测量得出的无因次热通量高达48,这是传统散热器设计(在相同质量流量下使用压力驱动的气流)传热速率的两倍。

著录项

  • 来源
    《International Journal of Heat and Mass Transfer》 |2011年第22期|p.4549-4559|共11页
  • 作者单位

    Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA;

    Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA;

    Drexel University, Department of Mechanical Engineering and Mechanics, 3141 Chestnut Street, Philadelphia, PA 19104, USA;

    Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA;

    Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA;

    Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA;

    Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA;

    Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA;

  • 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

    heat exchanger heat sink fan nondimensionalization thermal management;

    机译:热交换器散热器风扇无量纲热管理;

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