A laboratory furnace wall is constructed of 0.656ft thick fireclay brick having k=1.0 W/m·K. This is covered on the outer surface with 1.181in. thick layer of insulating material having k=0.07 W/m·K. The furnace inner brick surface is at 2250°R and the outer surface of the insulation material is at 98.33°F. Calculate the steady state heat transfer rate through the wall in W/m 2 , and determine the interfacial temperature between the brick and insulation.

A laboratory furnace wall is constructed of 0.656ft thick fireclay brick having k=1.0 W/m·K. This is covered on the outer surface with 1.181in. thick layer of insulating material having k=0.07 W/m·K. The furnace inner brick surface is at 2250°R and the outer surface of the insulation material is at 98.33°F. Calculate the steady state heat transfer rate through the wall in W/m 2 , and determine the interfacial temperature between the brick and insulation.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter1: Basic Modes Of Heat Transfer

Section: Chapter Questions

Problem 1.10P: 1.10 A heat flux meter at the outer (cold) wall of a concrete building indicates that the heat loss...

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1.10 A heat flux meter at the outer (cold) wall of a concrete building indicates that the heat loss through a wall of 10-cm thickness is . If a thermocouple at the inner surface of the wall indicates a temperature of 22°C while another at the outer surface shows 6°C, calculate the thermal conductivity of the concrete and compare your result with the value in Appendix 2, Table 11.
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A laboratory furnace wall is constructed of 0.656ft thick fireclay brickhaving k=1.0 W/m·K. This is covered on the outer surface with 1.181in.thick layer of insulating material having k=0.07 W/m·K. The furnace innerbrick surface is at 2250°R and the outer surface of the insulation material isat 98.33°F. Calculate the steady state heat transfer rate through the wall inW/m 2 , and determine the interfacial temperature between the brick andinsulation.
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