The Emittance and Absorptance of External Surfaces Values Effect for Payload Panels on Geostationary Orbit Satellite: Thermal Analysis Studies

Abstract

One of the most important parameters in the dimensioning stages of communication satellites is the calculation of the areas where the heat to be released into space is located. The satellite thermal control system calculates these areas. Thermal analyses are performed for the north and south panels where the payload equipment is located in three-axis geostationary satellites. It is important to calculate these areas where the heat to be released into space is located correctly. In this study, thermal analysis calculations were performed for a three-axis geostationary satellite with an area of 1 to 10 m2. In the calculations, the absorptance of external surfaces at the end of the satellite's life was calculated by considering 0.27. The radiator area temperature was taken as 30 oC in the calculations.

Keywords

• Geostationary orbit
• satellite
• thermal analysis

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