Use convective and conductive equations. Account for the speed.

The wall of a furnace has an inner temperature of 500 F. The wall has a thickness of 2

inches and has a thermal conductivity of 0.02 Btu/(h-ft-F). On the outside, air at 30 F

flows over

the 10 ft x 10 ft wall at a speed of 10 ft/s. Determine the rate of heat loss from the

furnace to the environment.