The inner surface of a 0.25m thick brick wall of a furnace iskept at 810ºC, when the outside surrounding air is at 22ºC. Theconvective heat transfer coefficient of the outer surface is 12W/m2K and the thermal conductivity of the brick is 0.865W/mK.Neglect the convective resistance for the inner side of thefurnace and assume that the problem is steady state and thermalradiation is neglected. (a) (Sketch the system and calculate the rate of heat loss per unitwall
area. (ii) Calculate the temperature of the outer wall surface. . . .

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