Thermal Conduction Through a Composite Wall · IPhO 2016 #3

Physics · heat-transfer

Problem

A wall consists of two layers in series: layer A has thickness

d_A = 10\;\text{cm}

and thermal conductivity

k_A = 0.50\;\text{W/(m}\cdot\text{K)}

; layer B has

d_B = 5.0\;\text{cm}

and

k_B = 2.0\;\text{W/(m}\cdot\text{K)}

. The outer faces are at

T_1 = 30^\circ\text{C}

and

T_2 = 10^\circ\text{C}

. Find the heat flux and the temperature at the interface.