W 12. The wall of a steam boiler furnace is made of alveolar chamotte with a thickness of d₁ = 125 mm and a layer of brick with a thickness of d₂ = 500 mm. The thermal conductivity of the chamotte is k = (0.28 + 0.000237) and that of the brick is k₂ = 0.7. The internal temperature of the furnace is 1100°C, and the external temperature is 50°C. Calculate: W a) the heat loss through 1m² of the furnace wall b) the temperature at the contact surface of the layers.

Principles of Physics: A Calculus-Based Text
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Author:Raymond A. Serway, John W. Jewett
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Chapter16: Temperature And The Kinetic Theory Of Gases
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12. The wall of a steam boiler furnace is made of alveolar chamotte with a
thickness of d₁ = 125 mm and a layer of brick with a thickness of d₂ = 500 mm.
The thermal conductivity of the chamotte is k = (0.28 + 0.000237) and
that of the brick is k₂ = 0.7. The internal temperature of the furnace is
1100°C, and the external temperature is 50°C. Calculate:
W
a) the heat loss through 1m² of the furnace wall
b) the temperature at the contact surface of the layers.
Transcribed Image Text:W 12. The wall of a steam boiler furnace is made of alveolar chamotte with a thickness of d₁ = 125 mm and a layer of brick with a thickness of d₂ = 500 mm. The thermal conductivity of the chamotte is k = (0.28 + 0.000237) and that of the brick is k₂ = 0.7. The internal temperature of the furnace is 1100°C, and the external temperature is 50°C. Calculate: W a) the heat loss through 1m² of the furnace wall b) the temperature at the contact surface of the layers.
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