A mild steel square tank with a wall thickness of 8mm contains water at 80˚C. The thermal conductivity of amild steel is 50W/m.K and the heat transfer coefficients for the inside and outside of the tank are 2800W/m2.K, and 11W/k2.K respectively. Sketch and label the temperature profile and calculate the rate of heat loss per m2 of tank surface area when the atmospheric temperature is 25˚C.
Answer is given in the picture:
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