Heat transfer characteristics of flat micro-heat pipe array

ZHAO Yaohua; WANG Hongyan; DIAO Yanhua; WANG Xinyue; DENG Yuechao

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Heat transfer characteristics of flat micro-heat pipe array

更新时间：2025-12-10

- Heat transfer characteristics of flat micro-heat pipe array
- CIESC Journal Issue 2, Pages: 336-343(2011)
- 作者机构：
  
  北京工业大学建筑工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：05 February 2011，
  
  Published：05 February 2011
- 稿件说明：
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ZHAO Yaohua, WANG Hongyan, DIAO Yanhua, et al. Heat transfer characteristics of flat micro-heat pipe array[J]. CIESC Journal, 2011, (2): 336-343.
DOI：

ZHAO Yaohua, WANG Hongyan, DIAO Yanhua, et al. Heat transfer characteristics of flat micro-heat pipe array[J]. CIESC Journal, 2011, (2): 336-343. DOI：

摘要

研制了结构紧凑的带有微结构的平板微热管阵列，并对其充装不同工质时的传热性能进行测试。同时对热管内充装不同工质时的热通量进行了测试。结果表明，在使用甲醇、乙醇、丙酮、R141b为工质的情况下该平板微热管阵列的散热效果良好，其中甲醇为工质的散热器在保证芯片表面正常的工作温度下的最大热通量及总热量输运能力分别达到102 W·cm-2及102 W以上。最高热通量可达200 W·cm-2。以甲醇为工质的不同充液率实验表明，平板微热管阵列的热通量随充液率的不同而有所变化，最佳充液率为0.3。

Abstract

Various flat micro-heat pipe arrays with miniature axially grooves for electric chip cooling are constructed.A series of experiments including start-up time

temperature distribution and heat flux with different working fluids and filling factors are carried out.The result shows that flat micro-heat pipe arrays have advantages of quicker start-up

less temperature difference and better heat transfer.R141b

acetone

methanol and ethanol are used as working fluids.Flat micro-heat pipe arrays filled with methanol have the best heat transfer performance.The maximum heat flux can reach 102 W·cm-2 while the chip is maintained at its working temperature

below 70℃.The best filling factor of methanol is 0.3 for high heat flux.

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