This paper presents the experimental and analytical results of a heat rejection system consisting of a single-phase mechanically pumped loop and a space radiator. It has been developed for future crewed exploration missions to provide a large amount of heat dissipation capability. The radiator consists of a honeycomb radiator, eight aluminum pipes inserted through the honeycomb core, and two aluminum manifolds joined at both ends of the eight pipes. A graphite sheet is attached to the back of the aluminum skin, facing deep space to improve the thermal diffusivity in the in-plane direction. Silverized Teflon® tapes are put on the surface of the skin on the deep-space side, and the surface of the opposite skin is covered with multilayer insulation. A gap between the radiator surface and the flow channel protects against micrometeoroids and orbital debris. A thermal vacuum test was conducted to evaluate the thermal performance of the radiator. The coolant was HFE7200, and its flow rate was varied from about 50 to 200 kg/h. More than 50 temperatures across the radiator surface were measured for each case. Thermal Desktop® and SINDA/FLUINT software were used to develop the thermal mathematical model, which was correlated with the test results and evaluated through thermal analysis. The fin efficiency of the radiator increased with the mass flow rate of the coolant, reaching 0.9 or higher.

本文介绍了由单相机械泵浦回路和空间散热器组成的排热系统的实验和分析结果。它是为未来的载人探索任务而开发的，可提供大量的散热能力。散热器由一个蜂窝状散热器、八根穿过蜂窝芯的铝管和连接在八根管子两端的两个铝管组成。石墨片贴在铝皮的背面，面向深空，以提高面内方向的热扩散率。深空一侧的蒙皮表面贴有镀银的Teflon®胶带，相对的蒙皮表面覆盖有多层绝缘层。散热器表面和流道之间的间隙可防止微流星体和轨道碎片。进行热真空测试以评估散热器的热性能。冷却剂为 HFE7200，其流速从约 50 至 200 kg/h 不等。每种情况都测量了散热器表面的 50 多个温度。Thermal Desktop® 和 SINDA/FLUINT 软件用于开发热数学模型，该模型与测试结果相关联并通过热分析进行评估。散热器的翅片效率随着冷却剂质量流量的增加而增加，达到0.9以上。每种情况都测量了散热器表面的 50 多个温度。Thermal Desktop® 和 SINDA/FLUINT 软件用于开发热数学模型，该模型与测试结果相关联并通过热分析进行评估。散热器的翅片效率随着冷却剂质量流量的增加而增加，达到0.9以上。每种情况都测量了散热器表面的 50 多个温度。Thermal Desktop® 和 SINDA/FLUINT 软件用于开发热数学模型，该模型与测试结果相关联并通过热分析进行评估。散热器的翅片效率随着冷却剂质量流量的增加而增加，达到0.9以上。