潜熱利用流体排熱システムにおける蒸気弁操作による温度制御(熱工学,内燃機関,動力など)

概要

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A two-phase flow thermal control system, which utilizes the latent heat of fluid, is paid attention to for the heat removal in the space station and the Space Solar Power System (SSPS). The characteristics are that the system weight is lower than that in single-phase flow and that the temperature can be controlled by changing the pressure of the loop. Conventionally, the control of the temperature in a loop has been performed by operating the pressure of the accumulator. In this paper, the temperature control of the loop by the vapor valve is proposed as a new control method. For the proposal of new control method, an active thermal control system which can give a maximum 1kW heat load to an evaporator was built and an experiment of the dynamic characteristics under 1G was carried out in the extensive quality range with a partial heat load, using alternative freon HCFC-123 as the working fluid. As a result, the effects of the vapor valve opening on the dynamic response and the possibility of the loop control by the vapor valve were clarified.
社団法人日本機械学会の論文
2005-03-25