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GATE ME 2016 Set 3 — Question 25

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NAT+1 / -0EasyComposite Wall ConductionConductionHeat Transfer

Heat Transfer → Conduction → Composite Wall Conduction

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Question

Steady one-dimensional heat conduction takes place across the faces 1 and 3 of a composite slab consisting of slabs A and B in perfect contact as shown in the figure, where kA,kBk_A, k_B denote the respective thermal conductivities. Using the data as given in the figure, the interface temperature T2T_2 (in ∘C^\circ\text{C}) is __________
diagram of composite slab with slab A (width 0.1 m, kA = 20 W/m.K) and slab B (width 0.3 m, kB = 100 W/m.K). Face 1 is at T1 = 130°C and face 3 is at T3 = 30°C. Interface is face 2.
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