A 10-in.-thick concrete bridge deck is embedded with heating cables, as shown in Figure...

A 10-in.-thick concrete bridge deck is embedded with heating cables, as shown in Figure P13–30. If the lower surface is at 0 ° F, the rate of heat generation (assumed to be the same in each cable) is 100 Btu/(h-in.) and the top surface of the concrete is at 35 ° F. The thermal conductivity of the concrete is 0.500 Btu/(h-ft-° F). What is the temperature distribution in the slab? Use symmetry in your model.