The 50-mm peephole of a large furnace operating at 450°C is covered with a material having t= 0.8 and p = 0 for irradiat

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answerhappygod
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The 50-mm peephole of a large furnace operating at 450°C is covered with a material having t= 0.8 and p = 0 for irradiat

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The 50 Mm Peephole Of A Large Furnace Operating At 450 C Is Covered With A Material Having T 0 8 And P 0 For Irradiat 1
The 50 Mm Peephole Of A Large Furnace Operating At 450 C Is Covered With A Material Having T 0 8 And P 0 For Irradiat 1 (35.23 KiB) Viewed 36 times
The 50-mm peephole of a large furnace operating at 450°C is covered with a material having t= 0.8 and p = 0 for irradiation originating from the furnace. The material has an emissivity of 0.8 and is opaque to irradiation from a source at room temperature. The outer surface of the cover is exposed to surroundings and ambient air at 27°C with a convection heat transfer coefficient of 50 W/(m²K). Assuming that convection effects on the inner surface of the cover are negligible, calculate the heat loss by the furnace and the temperature of the cover.
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