Mechanical Engineering > GATE 2014 SET-2 > Radiation Heat Transfer
A hemispherical furnace of 1 m radius has the inner surface (emissivity, ε = 1) of its roof maintained at 800 K, while its floor (ε = 0.5) is kept at 600 K. Stefan-Boltzmann constant is 5.668 × 10−8 W/m2·K4. The net radiative heat transfer (in kW) from the roof to the floor is _______
Correct : 24.6
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