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The flat floor of a hemispherical furnace is at 800 K and has emissivity of 0.5. The corresponding values for the hemispherical roof are

The flat floor of a hemispherical furnace is at 800 K and has emissivity of 0.5. The corresponding values for the hemispherical roof are 1200 K and 0.25. Determine the net heat transfer from roof to floor.

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The net heat transfer between the hemispherical roof and floor can be calculated using the StefanBoltzmann Law for radiation Q sigma varepsilon1 A1 T1... blur-text-image

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