Numerical investigation on heat transfer of vertical micro-heat pipe arrays

WANG Hongyan; ZHAO Yaohua

doi:10.3969/j.issn.0438-1157.2014.02.020

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Numerical investigation on heat transfer of vertical micro-heat pipe arrays

更新时间：2025-12-10

- Numerical investigation on heat transfer of vertical micro-heat pipe arrays
- CIESC Journal Issue 2, Pages: 508-515(2014)
- 作者机构：
  
  北京工业大学建筑工程学院,北京,100022
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2014.02.020
  CLC： K124
- Online First：05 February 2014，
  
  Published：05 February 2014
- 稿件说明：
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WANG Hongyan, ZHAO Yaohua. Numerical investigation on heat transfer of vertical micro-heat pipe arrays[J]. CIESC Journal, 2014, (2): 508-515.
DOI：

WANG Hongyan, ZHAO Yaohua. Numerical investigation on heat transfer of vertical micro-heat pipe arrays[J]. CIESC Journal, 2014, (2): 508-515. DOI： 10.3969/j.issn.0438-1157.2014.02.020.

摘要

对新型高效传热元件平板微热管阵列（MHPA）的工作机理进行了理论研究。通过建立分区微元模型对热管冷凝段内部工质的流动与传热过程进行了分析。确定了微槽内冷凝液膜的厚度，温度场分布及质量流量等物理参数。利用Matlab软件编写的程序计算结果与实验值吻合较好，最大误差在5%以内。根据软件计算的结果，拟合得到了冷凝段内部饱和温度的表达式。

Abstract

The paper is focused on the working mechanism of micro-heat pipe arrays (MHPAs)

which are new efficient phase transition components. The three-dimensional partition-minuteness model is made to analyze the flow and heat transfer in the MHPAs by using the theory of two-phase closed thermosyphon and the theory of condensation on vertical walls with micro-channels. The surface tension is considered in the model. Through partitioning the condensate on the surface of microchannels

the flow and heat transfer are analyzed

giving the thickness of condensate

temperature distribution and mass flux. The Matlab programs based on the three-dimensional partition-minuteness model are used. The calculation results agree with the experimental results. The error is within 5%. The formulas for the saturation temperature in the condensation part of the MHPA are obtained from the calculated results.

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