ループヒートパイプ過渡熱流動モデルの開発と宇宙軌道上での検証

抄録

This paper discusses the transient model of loop heat pipes in detail. A new model was constructed using an implicit method for fluid calculations and an explicit method for heat transfer calculations between pipe walls and radiators. In addition, the effectiveness of this model was verified using a loop heat pipe used for demonstration purposes on International Space Station. Good agreement was shown with the results of thermal vacuum tests. On the other hand, a comparison with the on-orbit test results revealed differences in vibration phenomena. It was concluded that this was because the heat input in orbit, such as solar heat input, was not accurately estimated.