平板微热管阵列垂直传热的数值分析

doi:10.3969/j.issn.0438-1157.2014.02.020

化工学报 ›› 2014, Vol. 65 ›› Issue (2): 508-515.DOI: 10.3969/j.issn.0438-1157.2014.02.020

平板微热管阵列垂直传热的数值分析

王宏燕, 赵耀华

北京工业大学建筑工程学院, 北京 100022

收稿日期:2013-03-29 修回日期:2013-11-12 出版日期:2014-02-05 发布日期:2014-02-05
通讯作者: 王宏燕（1968- ），女，副教授。
基金资助:
北京市自然科学基金项目（Z1004020201201）。

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

WANG Hongyan, ZHAO Yaohua

College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100022, China

Received:2013-03-29 Revised:2013-11-12 Online:2014-02-05 Published:2014-02-05
Supported by:
supported by the Natural Science Foundation of Beijing(Z1004020201201).

摘要/Abstract

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。

关键词: 微热管, 凝结, 传热, 数值分析

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.

Key words: micro heat pipe, condensation, heat transfer, mumerical analysis

中图分类号:

TK124

王宏燕, 赵耀华. 平板微热管阵列垂直传热的数值分析[J]. 化工学报, 2014, 65(2): 508-515.

WANG Hongyan, ZHAO Yaohua. Numerical investigation on heat transfer of vertical micro-heat pipe arrays[J]. CIESC Journal, 2014, 65(2): 508-515.

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平板微热管阵列垂直传热的数值分析

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

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