一种空间相变换热器热设计与仿真分析及其改进

麻才新; 盛强; 童铁峰

doi:10.11728/cjss2018.03.409

一种空间相变换热器热设计与仿真分析及其改进

doi: 10.11728/cjss2018.03.409

1 中国科学院空间应用工程与技术中心中国科学院太空应用重点实验室北京 100094;
2 中国科学院大学计算机与控制学院北京 100049

详细信息

作者简介:
麻才新,E-mail:macaixin15@csu.ac.cn

中图分类号: V254
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出版历程
- 收稿日期: 2017-06-19
- 修回日期: 2017-12-26
- 刊出日期: 2018-05-15

Thermal Design and Simulation of a Space Phase Change Heat Exchanger

1 Key Laboratory of Space Utilization, Technology and Engineering Center for Space Utilization, Chinese Academy of Sciences, Beijing 100094;
2 University of Chinese Academy of Sciences, School of Computer and Control Engineering, Beijing 100049

摘要

摘要: 基于相变计算方法即焓法处理相变材料凝固/融化模型，对一个以水为主动冷却介质，内填充石蜡类相变蓄热材料的板式相变换热器的换热进行数值模拟.得到了不同重力条件下冷却面的温度分布，相变材料在融化过程中的动态温度场分布、相变界面分布、融化时间等结果，验证了该相变换热器的可行性.对比该相变换热器在重力与微重力不同条件下的性能差异，利用添加强化传热肋片与泡沫复合相变材料方法，提高了微重力条件下该类相变换热器的效率，可为空间相变蓄热装置的设计及实验研究提供重要参考.
- 空间环境 /
- 石蜡 /
- 相变换热 /
- 微重力
Abstract: Phase Change Material (PCM) is widely used in energy storage due to its huge latent heat. To overcome its drawback of poor thermal conductivity, a Phase Change Heat Exchangers (PCHE) which combine the advantage of heat exchanger and PCM is designed. It can be used cooling high density of heat flow rate surface in aero-space. Based on the phase change computing methods-Enthalpy method for solidification and melting model, the numerical simulation of a kind of plate PCHE, which used water and paraffin as cooling medium and phase-change material, is studied. The transient temperature distribution, solid-liquid phase interface changes and melting time are obtained under different gravity conditions. The results show the performances of PCHE satisfy the design request. comparing the results under different gravity conditions, Heat Transfer Enhancement Method (HTEM) is used by add fins and metal or ceramic foams to improve the efficiency of the PCHE under microgravity. It is valuable to the design and experiment research of space PCHE.
- Space environment /
- Paraffin /
- Phase change heat exchange /
- Microgravity

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参考文献(13)

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