Experimental study of pulsating heat pipe with mercury and water as working fluid

HU Jianjun; XU Jinliang

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Experimental study of pulsating heat pipe with mercury and water as working fluid

更新时间：2025-12-10

- Experimental study of pulsating heat pipe with mercury and water as working fluid
- CIESC Journal Issue 5, Pages: 1083-1090(2008)
- 作者机构：
  
  1. 中国科学院广州能源研究所
  2. 中国科学院研究生院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：05 May 2008，
  
  Published：05 May 2008
- 稿件说明：
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HU Jianjun, XU Jinliang. Experimental study of pulsating heat pipe with mercury and water as working fluid[J]. CIESC Journal, 2008, (5): 1083-1090.
DOI：

HU Jianjun, XU Jinliang. Experimental study of pulsating heat pipe with mercury and water as working fluid[J]. CIESC Journal, 2008, (5): 1083-1090. DOI：

摘要

在恒定加热功率条件下，考察了不同倾斜角时蒸发段壁面温度的脉动情况，发现了汞-水脉动热管微倾角起振的特性;在相同充液比下，对比了汞-水混合工质与纯水工质脉动热管在微倾角时的运行特性;对比了不同倾斜角下汞-水脉动热管的传热性能。实验结果表明：工质汞的掺入能够有效辅助脉动热管的微倾角起振，增加了脉动热管应用的灵活性。传热热阻随加热功率的增加而减小，而在高加热功率下，热阻大小基本不受倾斜角影响。实验中还发现汞-水脉动热管起振的临界热通量与热载荷施加的历史有关。

Abstract

Experimental investigation was conducted on closed-loop pulsating heat pipe（CLPHP）working with a mixture of water and mercury.The temperature fluctuation of the evaporator section at different inclination angles was measured at constant heating load，and the phenomenon of start-oscillation in micro inclination angles was observed.Then the operation characteristics of Hg-H2O PHP and pure H2O PHP was compared in the same fill ratio.Lastly，a comparison of heat transfer performance of Hg-H2O PHP with different inclination angles was made.The results showed that the addition of mercury into water effectively assisted the start-oscillation in micro inclination angles which increased the application flexibility of the PHP system.Thermal resistance decreased as heating load increased.Up to a certain magnitude，different inclination angles had very close thermal resistance.It was discovered that the critical heat flux of start-oscillation was related to heating history.

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