Question: ( b ) The temperatures at the inside and outside surfaces of the brickwork of a furnace have been noted to be 6 5 0

(b) The temperatures at the inside and outside surfaces of the brickwork of a furnace have been noted to be 650C and 225C. Make calculations for the percentage decrease in heat loss if thickness of the brickwork is increased by 100 percent. The ambient temperature is 30C and assume that thermal conductivity of brickwork and convective coefficient remains same before and after the increase in thickness.
(b) The temperatures at the inside and outside surfaces of the

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