engineering recuitment GATE ME 2023-24 Test Series Heat Transfer Radiation Properties of Surface Emission
A furnace is placed in a vacuum chamber. The furnace is losing 10% of the heat through one of its faces, then what is the total heat generated by the furnace in kJ/s, if the outside wall temperature of the furnace is at 727°C and the wall of the vacuum chamber are at 27°C, the emissivity of the furnace is 0.2, and the area of the each face is 10 m2. Take Stefan Boltzman’s constant as 5.67 × 10-8 W/m2K4.
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