Question

2.2A furnace wall consist of 125 mm wide refractory brick 125 mm wide insulating firebrickseparated by an air gap. The outside wall is covered with a 12 mm thickness of plaster. Theinner surface of the wall is all 1100 °C and the room temperature is 25 °C. The heat transfercoefficient from the outside wall surface to the air in the room 17 W/m2K, and the resistancelo heat flow of the air gap is 0.16 K/W. The thermal conductivities of refractory brick,insulating firebrick, and plaster are 1.6, 0.3 and 0.14 W/m K, respectively.Calculate:i. the rate of heat loss per unit area of wall surface.ii. the temperature at each interface throughout the wall.iii.the temperature at the outside surface of the wall.​

Answer 1

Answer:

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Explanation:

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