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An insulated wall consists of an exterior wood layer of thickness 3.1 cm and an interior...

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Physics

An insulated wall consists of an exterior wood layer ofthickness 3.1 cm and an interior layer of foam insulation ofthickness 2.3 cm . For the wood, k=0.080W/(m⋅K), and for the foaminsulation k= 0.010 W/(m⋅K). The outer surface of the wood is at aconstant -15.0 ∘C , and the inner surface of the foam insulation isat a constant 19.0 ∘C .

Calculate the temperature in Celsius where the wood and foaminsulation are in contact. T=???

Calculate the heat flow per unit area through the two-layerwall. H=?? W/m^2

Answer & Explanation Solved by verified expert
4.1 Ratings (728 Votes)
We dont consider here heat transfer for the air a 0031 m thickness of the wood layer kw 008 WmK thermal conductivity of wood To 10C 25815 K outside    See Answer
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