Thermal Control Design for GEO Communication Satellite(Advanced Technology-II)

概要

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COMS (Communication, Ocean and Meteorogical Satellite) is a geostationary satellite and has been developing by KARI for communication and ocean and meteorogicial observations. Ka-band components are installed on South wall, while other equipment for sensors are installed on the opposite side, North wall. A conventional thermal control design is baselined, using well established techniques and space proven hardware in a passive design, supplemented by heater to compensate environmental and unit dissipation variations. High dissipating communication units are located on external (surface) heat pipe and are covered by MLI (Multi Layer Insulation) to decouple them from the rest of the spacecraft. External spacecraft walls are covered by MLI or OSR (Optical Solar Reflector) for insulation from space and for rejection internal heat to space. The Ka-band payload section of south wall is divided several areas based on unit operating temperature in order to optimize radiator area and maximize heat rejection capability. Thermal analysis is carried out for validation of thermal control design. This paper presents principles of thermal control design and results of thermal analysis for COMS.
社団法人電子情報通信学会の論文
2006-10-12