The outside wall of a refrigerated storage room is 20m long and 4m high and is constructed with 200cm concrete block (k=0.935W/[mC]) and 20cm of fiber insulation board (k=0.048 W/[mC]). The inside of the room is at 10C and the convective heat-transfer coefficient is 40 W/(m2K); the outside temperature is 30C with a convective heat transfer coefficient of 10 W/(m2K) on the outside wall surface. Calculate the rate of heat loss. ( 5 points)