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 : 凝縮器冷却方法の違いが熱特性に与える影響(熱工学,内燃機関,動力など)

概要

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As heat generation in satellites increases, securing sufficient radiator panel area is an important problem. Deployable radiator, whose radiator panels are deployed post-launch in space to increase the effective radiator panel area of the satellite, is becoming an important thermal control technology. Reservoir Embedded Loop Heat Pipe (RELHP) is applied to the deployable radiator for thermal transport device. This paper presents the heat transport dynamic characteristics of RELHP using radiant cooling condenser and liquid forced convection cooling condenser by experimental study. It was found that heat leak into liquid line, flexible line and reservoir increases length of sub-cooling region in the condenser. In case of radiant cooling condenser, sub-cooling region length is shorter than liquid forced convection cooling condenser. Furthermore, vapor temperature is mainly decided by radiation capacity of radiator panel, because liquid temperature return into evaporator is rises with increasing radiator panel temperature. In addition to that, time length from start-up until steady state is longer than in case of using liquid forced convection cooling condenser, because radiator panel has large heat capacity.
社団法人日本機械学会の論文
2008-05-25