A spherical communication satellite with a diameter of 2.5 m is orbiting around the earth. The outer surface of the satellite in space has an emissivity of 0.75 and a solar absorptivity of 0.10, while solar radiation is incident on the spacecraft at a rate of 1000 W/m². If the satellite is made of material with an average thermal conductivity of 5 W/m·K and the midpoint temperature is 0°C, determine the heat generation rate and the surface temperature of the satellite.

Transcribed Image Text:

Ts Satellite k = 5 W/m-K To = 0°C egen α = 0.10 qabs ε = 0.75 9rad