Research on optimal design of forced air-cooling heat transfer in inhomogeneous thermal field

XU Hao; WU Caixiu; WU Zhiyong; WANG Xiong; SONG Guomeng

doi:10.13890/j.issn.1000-128X.2022.01.016

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Research on optimal design of forced air-cooling heat transfer in inhomogeneous thermal field

Railway Rolling Stock | 更新时间：2024-08-02

- Research on optimal design of forced air-cooling heat transfer in inhomogeneous thermal field
- Electric drive for locomotives Issue 1, Pages: 98-102(2022)
- 作者机构：
  
  1.中车株洲电力机车研究所有限公司，湖南株洲 412001
  2.深圳地铁运营集团有限公司车辆中心，广东深圳;518000
- 作者简介：
- 基金信息：
- DOI：10.13890/j.issn.1000-128X.2022.01.016
  CLC： TK172.4
- Published：10 January 2022，
  
  Received：09 October 2020，
  
  Revised：24 December 2021，
- 稿件说明：
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XU Hao, WU Caixiu, WU Zhiyong, et al. Research on optimal design of forced air-cooling heat transfer in inhomogeneous thermal field. [J]. Electric drive for locomotives (1):98-102(2022)
DOI：

XU Hao, WU Caixiu, WU Zhiyong, et al. Research on optimal design of forced air-cooling heat transfer in inhomogeneous thermal field. [J]. Electric drive for locomotives (1):98-102(2022) DOI： 10.13890/j.issn.1000-128X.2022.01.016.

摘要

针对某大功率、高热流密度梯度、非均匀热物理条件的集成模块，基于均温技术进行传热优化设计研究，应用数值仿真和试验测试的研究方法，将初始无热管方案、倒装方式均温热管方案和正装方式均温热管方案进行对比。结果表明，在相同的风速工况下，倒装方式的均温热管方案相对初始无热管方案散热器温升减小10.3~11.0 K，最大降幅达18%，均温效果最大提升32.5%；相对于倒装方式的均温热管方案，正装方式均温热管方案在温升方面可进一步减小6.9~9.4 K，最大降幅达19.3%，均温效果进一步提升83.6%，传热效率非常显著。

Abstract

Aiming at an integrated module with high power

high heat flux gradient and non-uniform thermophysical conditions

heat transfer optimization design research was conducted based on uniform temperature technology. By using the research methods of numerical simulation and experimental testing

the initial no-heat-pipe scheme and the equal-temperature heat pipe scheme

including the forward and inverted mounting methods

were compared. The results show that: under the same wind speed

compared with the initial radiator without heat pipe solution

the temperature rise of the even-temperature heat pipe solution of the flip-chip method is reduced by 10.3~11.0 K

the maximum drop is 18%

and the temperature uniformity effect is increased by 32.5%; compared with the inverted method

the temperature rise of the uniform temperature heat pipe solution of the formal installation method can be further reduced by 6.9~9.4 K

with the maximum dropping 19.3%

and the uniform temperature effect is further increased by 83.6%

which is very significant.

关键词

非均匀热物理场均温热管均温性数值仿真IGBT

Keywords

non-uniform thermal physical fielduniform temperature heat pipeuniform temperaturenumerical simulationIGBT

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