Heat Transfer Characteristics of a Reservoir Embedded Loop Heat Pipe (2nd Report, Influence of Noncondensable Gas on Heat Transfer Characteristics)

被引：2

作者：

Ishikawa, Hiroaki ^{[1
]}

Ogushi, Tetsuro ^{[2
]}

Nomura, Takehide ^{[3
]}

Noda, Hiroyuki ^{[4
]}

Kawasaki, Haruo ^{[4
]}

Yabe, Takahiro ^{[4
]}

机构：

[1] Mitsubishi Electr Corp, Adv Technol R& Ctr, Thermal Fluid Dynam & Noise Control Mech Syst Dep, 8-1-1 Tsukaguchi Honmachi, Amagasaki, Hyogo 6618661, Japan

[2] Mitsubishi Electr Corp, Adv Technol R& Ctr, Amagasaki, Hyogo, Japan

[3] Mitsubishi Electr Corp, Kamakura Works, Tokyo, Japan

[4] Japan Aerosp Explorat Agcy, Chofu, Tokyo, Japan

来源：

HEAT TRANSFER-ASIAN RESEARCH | 2007年 / 36卷 / 08期

关键词：

heat pipe; space equipment; multi-phase flow; porous media; heat transfer; loop heat pipe; wick; noncondensable gas;

D O I：

10.1002/htj.20181

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

High-powered satellites need larger heat rejection areas. A deployable radiator is one of the key technologies for a high-powered satellite bus. A Reservoir Embedded Loop Heat Pipe (RELHP) is a two-phase heat transfer device that constitutes the deployable radiator. RELHP has an evaporator core which is used as a liquid reservoir to enhance operational reliability. For use on satellites, RELHP is required to have a lifetime greater than 10 years. In the case of conventional heat pipes, it is generally known that noncondensable gas (NCG) has worse heat transport characteristics. On the other hand, the influence of NCG on a RELHP is not still obvious. This paper presents the heat transport characteristics of RELHP for the case of changing NCG volume by experiment and calculation. It was found that NCG increases temperature rise at the evaporator. NCG volume in a RELHP has a great influence on heat transport characteristics due to the reservoir pressure increase caused by NCG. (C) 2007 Wiley Periodicals, Inc.

引用

页码：459 / 473

页数：15

共 9 条

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