Question

A furnace is shaped like a long equilateral triangular duct, as shown in Figure. The width of each side is 1 m. The base surface has an emissivity of 0.7 and is maintained at a uniform temperature of 600K. The heated left-side surface closely approximates a blackbody at 1000 K. The right-side surface is well insulated. Determine the rate at which heat must be supplied to the heated side externally per unit length of the duct in order to maintain these operating conditions, view factor from any surface to any other surface in the enclosure is 0.5 because of symmetry. Assume emissivity as 0.7. $T_1 = 1000 K$ Black Insulated $ \epsilon_3 = 0.7 $ $T_3 = 600 K $

          A furnace is shaped like a long equilateral triangular duct, as shown in Figure. The width of each side is 1 m. The base surface has an emissivity of 0.7 and is maintained at a uniform temperature of 600K. The heated left-side surface closely approximates a blackbody at 1000 K. The right-side surface is well insulated. Determine the rate at which heat must be supplied to the heated side externally per unit length of the duct in order to maintain these operating conditions, view factor from any surface to any other surface in the enclosure is 0.5 because of symmetry. Assume emissivity as 0.7.
$T_1 = 1000 K$
Black
Insulated
$ \epsilon_3 = 0.7 $
$T_3 = 600 K $

a furnace is shaped like a long equilateral triangular duct as shown in figure the width of each side is 1 m the base surface has an emissivity of 07 and is maintained at a uniform temperatu 08252

Added by Carlos M.

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