リザーバ内蔵ループ形ヒートパイプの熱特性に関する研究 : 第2報,不凝縮性ガスが熱特性に及ぼす影響(熱工学,内燃機関,動力など)

概要

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High-powered satellites need larger heat rejection area. Deployable radiator is one of key technologies for high-powered satellite bus. Reservoir Embedded Loop Heat Pipe (RELHP) is a two-phase heat transfer device and 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 over 10 years lifetime. In case of conventional heat pipes, it is generally known non condensable gas (NCG) make worse heat transport characteristics. On the other hand, influence of NCG on RELHP is not still obvious. This paper presents the heat transport characteristics of RELHP in case of changing NCG volume by experiment and calculation. It was found that NCG increases temperature rise at evaporator. NCG volume in RELHP has great influence on heat transport characteristics due to pressure increase in reservoir by NCG.
社団法人日本機械学会の論文
2007-03-25