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首页> 外文期刊>International Journal of Heat and Mass Transfer >Manufacturing and testing of the double-layer wick structure in a loop heat pipe
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Manufacturing and testing of the double-layer wick structure in a loop heat pipe

机译：回路热管中双层芯吸结构的制造和测试

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摘要

The work develops a double-layer wick to improve the structural strength and transfer of the working fluid of a biporous wick under higher heat flux. The properties of double-layer wick different structures are utilized to enhance heat transfer performance in a loop heat pipe (LHP). The outer layer of the double-layer wick is the biporous wick, which utilizes large and small pores as channels through which to transport vapor and working fluid, respectively. The inner layer of the double-layer wick is the monoporous wick, which provides a high capillary force and increases the strength of the outer layer. A process for manufacturing the double-layer wick is developed. Experimental results demonstrate that at 85 ℃, the limiting temperature of the evaporator wall, the maximum heat load of the double-layer wick reached 700 W, and the heat transfer coefficient of the evaporator was 116 kW/m~2 ℃. The minimum thermal resistance of the system was 0.08 ℃/W. A comparison with the heat transfer performance of a monoporous wick demonstrates that the double-layer wick has a 67% higher maximum heat load (vs. 420 W for the monoporous wick) and an almost half lower total thermal resistance (vs. 0.17 ℃/W for the monoporous wick).
机译：这项工作开发了一种双层灯芯，以提高双孔灯芯的结构强度和在较高热通量下的工作流体的传递。利用双层灯芯不同结构的特性来增强回路热管（LHP）中的传热性能。双层灯芯的外层是双孔灯芯，它利用大孔和小孔作为通道，分别通过这些孔传输蒸汽和工作流体。双层吸液芯的内层是单孔吸液芯，可提供较高的毛细作用力并增加外层的强度。开发了用于制造双层芯的方法。实验结果表明，在85℃时，蒸发器壁的极限温度，双层芯的最大热负荷达到700 W，蒸发器的传热系数为116 kW / m〜2℃。系统的最小热阻为0.08℃/ W。与单孔吸液芯的传热性能比较表明，双层吸液芯的最大热负荷高67％（单孔吸液芯为420 W），而总热阻几乎降低了一半（相对于0.17℃/ W为单孔灯芯）。

著录项

  • 来源
  • 作者

    Shen-Chun Wu; Chuo-Jeng Huang; Sheng-Hao Chen; Yau-Ming Chen;

  • 作者单位

    Department of Aviation Mechanical Engineering, China University of Science and Technology, Taipei City, Taiwan, ROC;

    Department of Mechatronic, Energy and Aerospace Engineering, Chung Cheng Institute of Technology, National Defense University, Taoyuan County, Taiwan, ROC;

    Department of Mechatronic, Energy and Aerospace Engineering, Chung Cheng Institute of Technology, National Defense University, Taoyuan County, Taiwan, ROC;

    Department of Mechanical Engineering, National Taiwan University, Taipei City, Taiwan, ROC;

  • 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

    loop heat pipe; double-layer wick; biporous wick; monoporous wick; heat transfer enhancement;

    机译：回路热管;双层灯芯双孔灯芯单孔灯芯传热增强;

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