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A CONCEPTUAL DESIGN OF RADIATIVE THERMAL CONTROL SYSTEM IN A GEOSTATIONARY SATELLITE OPTICAL PAYLOAD  

Kim, Jung-Hoon (한국항공우주연구원 통신해양기상위성사업단 통해기체계팀)
Jun, Hyoung-Yoll (한국항공우주연구원 통신해양기상위성사업단 통해기체계팀)
Publication Information
Journal of computational fluids engineering / v.12, no.3, 2007 , pp. 62-68 More about this Journal
Abstract
A conceptual thermal design is performed for the optical payload system of a geostationary satellite. The optical payload considered in this paper is GOCI(Geostationary Ocean Color Imager) of COMS of Korea. The radiative thermal control system is employed in order to expect a small thermal gradient in the telescope structure of GOCl. Two design margins are applied to the dedicated radiator dimensioning, and three kinds of configuration to the heater power sizing. A Monte-Carlo ray tracing method and a network analysis method are utilized to calculate radiative couplings and thermal responses respectively. At the level of conceptual design, sizing thresholds are presented for the radiator and heater on the purpose of determining the mass and power budget of the spacecraft.
Keywords
GOCI; Thennal Control; Thennal Analysis; Thennal Radiation; Monte-Carlo Method; Network Analysis Method;
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