Convection Heat Transfer - Heat Transfer

Heat Transfer Engineering | Thermodynamics

Example: A flat wall is exposed to the environment. The wall is covered with a layer of insulation 1 in. thick whose thermal conductivity is 0.8 Btu/hr-ft-F. The temperature of the wall on the inside of the insulation is 600F. The wall loses heat to the environment by convection on the surface of the insulation. The average value of the convection heat transfer coefficient on the insulation surface is 950 Btu/hr-ft² -F. Compute the bulk temperature of the environment (T_b) if the outer surface of the insulation does not exceed 105F.