Design a heat pipe cooling system for a spherical satellite that dissipates 5000 W m 3 , has a surface area of 5 m 2 , and cannot exceed a temperature of 120C All the heat must be dissipated by radiation into space State all your assumptions GIVEN Spherical satellite, 5 m 2 surface area Dissipates 5000 W m 3 Maximum temperature of 102C All heat rejection is by radiation to space ASSUMPTIONS Temperature drop between the satellite interior and the heat pipe evaporator is 20C Neglect vapor pressure drop in the heat pipe

Question: Design a heat pipe cooling system for a spherical satellite that dissipates 5000 W/m 3 , has a surface area of 5 m 2 ,

Design a heat pipe cooling system for a spherical satellite that dissipates 5000 W/m³, has a surface area of 5 m², and cannot exceed a temperature of 120°C. All the heat must be dissipated by radiation into space. State all your assumptions.

GIVEN

Spherical satellite, 5 m² surface area
Dissipates 5000 W/m³
Maximum temperature of 102°C
All heat rejection is by radiation to space

ASSUMPTIONS

Temperature drop between the satellite interior and the heat pipe evaporator is < 20°C
Neglect vapor pressure drop in the heat pipe

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