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Thermal Performance of a Closed-Loop Pulsating Heat Pipe With Multiple Heat Sources

机译:具有多个热源的闭环脉动热管的热性能

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摘要

A closed-loop pulsating heat pipe with multiple heat sources (CLPHP w/MHS) was invented to be used as a heat transfer medium between a number of heat sources to a single heat sink. However, an issue on the suitable heat source arrangement that causes the heat pipe to have the highest thermal performance was suspicious. The CLPHP w/MHS was made of a copper capillary tube with 32 turns. There were three heat sources with nonidentical input heat flux installed along a longitudinal axis in the evaporator section. Experimental investigations were conducted by permuting the heat sources into six unduplicated arrangements. For the vertical CLPHPs, the highest thermal performance is achieved when heat sources are arranged in consecutive order ascending from the lowest heat flux at the inlet of the evaporator section, since working fluid is promoted to circulate in complete one direction and then the heat can transfer more continuously. Finally, for the horizontal CLPHPs, the highest thermal performance is achieved when the heat sources are arranged in opposite order to the case of vertical CLPHPs, that is, descending from the highest heat flux, since working fluid pulsates with no intermission stop and this causes the heat transfer to be not interrupted.
机译:发明了具有多个热源的闭环脉动热管(CLPHP w / MHS),用作多个热源与单个散热器之间的传热介质。然而,关于使热管具有最高热性能的合适热源布置的问题是可疑的。带MHS的CLPHP由32匝的铜毛细管制成。在蒸发器部分沿纵轴安装了三个热源,它们的输入热通量不同。通过将热源排列成六个不重复的布置进行实验研究。对于立式CLPHP,当热源从蒸发器部分入口处的最低热通量开始以最低的顺序递增排列时,可获得最高的热性能,因为促进了工作流体沿完整的一个方向循环,然后热量可以传递更连续。最后,对于水平CLPHP,当热源以与垂直CLPHP的情况相反的顺序排列时,即从最高热通量下降时,可以获得最高的热性能,因为工作流体脉动而没有间歇停止,这导致传热不被中断。

著录项

  • 来源
    《Heat Transfer Engineering》 |2014年第15期|1161-1172|共12页
  • 作者单位

    Department of Mechani-cal Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai, 50200 Thailand;

    Department of Mechanical Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai, Thailand;

    Department of Mechanical Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai, Thailand;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
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