QUESTION 4
Consider one-dimensional conduction in a 3 layered plane composite wall. The outer surface of layer A is exposed to a air at T-1= 25°C and inner surface of layer C is exposed to a fluid at T-2 = 250°C. The middle layer B experiences uniform
heat generation, while there is no generation in layers A and C. The temperatures at the interfaces A-B and B-C are T1= 46 °C and T2=134 °C, respectively. Calculate the
heat generation of layer B, B in W/m3. (kA= 20 W/K, kC= 50 W/K, LA= 30 mm, LB= 42 mm, LC= 30 mm, h1= 15 W/m2-K, h2= 760 W/m2-K ) Please report your answer with one decimal figure.