宇宙往還機用水噴霧冷却器を供試体とした実験

抄録

This paper describes the water flash evaporation under low pressure circumstances, which considers the applicability to the practical use for spacecrafts of the data obtained in ref. 1). In the present work, experiments and analysis were carried out to entimate the performance of the water flash evaporating in the unsteady state with the fin type heating surface to be used for spacecrafts, which leads to the following results, (1) the water evaporating condition on the heating surface obtained under the steady state can be regarded to be realized instantaniously, (2) the fin-type heating surface with large angle of water impinging has heat rejection capability corresponding to that obtained with horizontal smooth fiat plate, (3) the plump portion in flash evaporator should be avoided to inhibit icing in a pressure control type flash evaporator.