As shown in the figure, an exterior wall of a building has an average thermal conductivity of 0.32 Btu/h-ft-ºR and a thickness of L = 4 in. At steady state, the temperature of the wall decreases linearly from T₁ = 70°F on the inner surface to T₂ on the outer surface. The outside ambient air temperature is To = 20°F and the convective heat transfer coefficient is 5.1 Btu/h-ft2°R. - Wall x=0.32 Btu/h-ft-R T₁- h=5.1 Btu/h ft. R T₂ Determine the temperature T2 in °F, and the rate of heat transfer through the wall, in Btu/h per ft2 of surface area.
As shown in the figure, an exterior wall of a building has an average thermal conductivity of 0.32 Btu/h-ft-ºR and a thickness of L = 4 in. At steady state, the temperature of the wall decreases linearly from T₁ = 70°F on the inner surface to T₂ on the outer surface. The outside ambient air temperature is To = 20°F and the convective heat transfer coefficient is 5.1 Btu/h-ft2°R. - Wall x=0.32 Btu/h-ft-R T₁- h=5.1 Btu/h ft. R T₂ Determine the temperature T2 in °F, and the rate of heat transfer through the wall, in Btu/h per ft2 of surface area.
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.
Chapter2: Steady Heat Conduction
Section: Chapter Questions
Problem 2.1P: A plane wall, 7.5 cm thick, generates heat internally at the rate of 105 W/m3. One side of the wall...
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