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3. The external surface of a ship in outer space has 0.6 emissivity, and 0.2 absorbance for solar radiation. a) If this radiation is incident
3. The external surface of a ship in outer space has 0.6 emissivity, and 0.2 absorbance for solar radiation.
a) If this radiation is incident on the ship at a rate of 1000 W/m2, determine the
surface temperature of the ship, when the emitted radiation is equal to the energy
absorbed sun.
b) Determine the effect of the surface emissivity and absorbance of the ship, on the
equilibrium surface temperature. Draw a graph of the surface temperature as a function of the emissivity, for solar radiation absorbances of 0.1, 0.5, 0.8 and 1. Argue the results obtained.
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