Question

A glass door is used on a fireplace to reduce exfiltration of room air through the chimney. The door, 0.70m high and 1.00m wide, reaches a uniform temperature of 232oC. If the room air temperature is 23oC, estimate the rate of heat transfer to the room air due to convection.

Air properties: k=0.0338W/m-K ν=26.4x10-6 m2/s Pr=0.690

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Heat Transfer

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