摘要
适合卫星应用的小型热公用回路,可以实现发热设备在星内立体布局,摆脱对散热面的依赖,使卫星的集成度提高,满足大型有效载荷按功能集成后的散热需要。用毛细泵代替机械泵,可以实现无运动部件的高可靠、长寿命、适合卫星应用的小型两相热公用回路。该回路需要对毛细泵主动加热促使工质流动,需要消耗一定的功率。如何降低毛细泵的功耗,是毛细泵驱动的热公用回路实用化的关键。理论和实验证明,热电致冷器在小温差下有较高的热泵系数,用热电致冷器加热毛细泵比直接电加热更经济。
Small scale thermal bus for satellite thermal control, can realize three-dimensional arrangement of hot devices, and be independent with the heat radiating area. By this way, the integration intensity was improved, and the cooling requirements of large payloads integrated by function were met. A new concept about two-phase fluid loop was presented, which used capillary pump instead of mechanical pump to realize a small scale two-phase thermal bus without moving parts, high reliability and long life. The capillary pump in this loop required to be heated actively to force fluid flow, and consume some power as well. How to reduce pump＇s input power is the key for capillary pumped two-phase thermal bus （CPTPTB） to get practical. Analysis and experiment indicated that thermoelectric cooler （TEC） had high coefficient of performance for heating in small temperature difference. It shows that it is more economical to heat up capillary pump with TEC than with direct electric heater.
出处
《中国空间科学技术》
EI
CSCD
北大核心
2007年第3期24-28,共5页
Chinese Space Science and Technology
关键词
热电致冷器
毛细泵热管
环路热管
热控制
卫星
Thermoelectric cooler Capillary pumped loop Loop heat pipe Thermal control Satellite
