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THERMAL ANALYSIS OF SURFACE HEAT PIPE INSTALLED PANEL OF GEOSTATIONARY SATELLITE  

Jun H.Y. (한국항공우주연구소 통신해양기상위성사업단 체계종합그룹)
Kim J.H. (한국항공우주연구소 통신해양기상위성사업단 체계종합그룹)
Publication Information
Journal of computational fluids engineering / v.11, no.3, 2006 , pp. 8-13 More about this Journal
Abstract
The north panel of a geostationary satellite is used as one of the main radiators, on which communication equipment or bus equipment are installed. The thermal control of panel is designed by using embedded heat pipes and surface heat pipes (or external heat pipes) to spread out heat dissipated from equipment all over the radiator evenly and finally to reject the heat to the space through the radiator efficiently. This panel is also divided by several areas based on the operating temperature and dissipation of equipment in order to increase heat rejection capability of radiator. The thermal analysis is carried out for the hot case, Winter Solsitce EOL (End Of Life), in order to validate thermal design of the panel utilized 6 surface heat pipes and 8 embedded heat pipes. The sensitivity studies for the heat pipe failure case and no heat pipe case are performed and compared to its normal state. The heat transport capability of heat pipe is also obtained from these calculations.
Keywords
Thermal Analysis; Radiator; Heat Pipe; Geostationary Satellite;
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