相变储热/辐射器式热沉的传热特性研究

赵朝义; 袁修干; 孙金镖; 李潭秋

相变储热/辐射器式热沉的传热特性研究

1.
北京航空航天大学飞行器设计与应用力学系
2. 航天医学工程研究所

基金项目: 国家"八六三"高技术计划资助项目

详细信息

作者简介:
赵朝义(1971-),男,河北晋州人,博士生,100083,北京.

中图分类号: V 444.3^＋6
计量
- 文章访问数: 2709
- HTML全文浏览量: 164
- PDF下载量: 5
- 被引次数: 0
出版历程
- 收稿日期: 1999-04-14
- 网络出版日期: 2000-05-31

Study of the Heat Transfer Characteristics of PhaseofChange Thermal Storage/Radiation Heat Sink

1.
Beijing University of Aeronautics and Astronautics,Dept. of Flight Vehicle Design and Applied Mechanics
2. Institute of Space MedicoEngineering of China

摘要

摘要: 对一种用于舱外活动的相变储热/辐射器式热沉进行了实验研究和数值模拟.设计了相变储热器的实验件和实验方案,进行了储热器的冷却实验.建立了具有导热与对流换热耦合边界的相变储热器数学模型,模型中考虑了自然对流及空穴的影响.编制了相变储热器的性能分析计算程序.通过实验值与计算值的比较分析,验证了程序的可靠性.该模型及计算程序为相变储热器的设计和优化提供了有利的分析工具.
- 传热 /
- 实验 /
- 计算方法 /
- 焓法
Abstract: Performance studies of a phase change thermal storage/radiation heat sink for extravehicular activity have been undertaken by experimental investigation and numerical simulation. The test specimens of phase change thermal storage were designed and the cooling tests of phase change thermal storage were conducted. The mathematical model of phase change thermal storage with coupled convection and conduction boundary conditions has been established. The effects of convective heat transfer and voids are considered in this model. A computational program has been developed for evaluating the performance of phase change thermal storage. The reliability of the program has been verified based on the experimental results. This program is a useful analysis tool for the design and optimization for a phase change thermal storage.
- heat transfer /
- experiment /
- computational methods /
- enthalpy method

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参考文献(1)

[1]Wilson J L, Lawson B M. Investigation into venting and non-venting technologies for the space station freedom extravehicular activity life support system. SAE-901319, 1990. [2]Strumpf H J, Vulgner A A. Heat rejection system for an advanced extravehicular mobility unit portable life support system. SAE-927020, 1992. [3]Bayes S A, Trevino L A, Dinsmore C E. A nonventing cooling system for space environment extravehicular activity, using radiation and regenerable thermal storage. SAE-881063, 1988. [4]Thomas W K, Mounir B I. Analysis of thermal energy storage material with change-of-phase volumetric effects. NASA-TM-102457,1990. [5]William R H, Gorge C M. Performance of finned thermal capacitors. NASA TN D-7690, 1974. [6]Gane C R, Oliver A J, Soulsby D R,et al. Numerical solution of coupled conduction-convection problems using lumped-parameter methods. In:Lewis R W, Morgan K, Schrefler B A, eds. Numerical Methods in Heat Transfer. Chichester:John Wiley & Sons Ltd, 1983. 227~274. [7]Marshall R H. Natural convection effects in rectangular enclosures containing a phase change martial. In:Kreith F,Boehm R,Mithchell J,et al,eds. Thermal Storage and Heat Transfer in Solar Energy Systems. New York:American Society of Mechanical Engineers,1978. 61~69. [8]童景山编著. 流体的热物理性质[M]. 北京:中国石化出版社, 1996.262~272.

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