A farmer installed a tank for the purpose of keeping the hot water for his residential house in the farm. The tank is made of mild steel of wall thickness 12 mm and contains water at 95oC. The atmospheric temperature is 10oC. The thermal conductivity of mild steel is 50W/mK, and the heat transfer coefficients for the inside and outside of the tank are 2800W/m2K and 11W/m2K, respectively. Calculate the rate of heat loss per m2 of tank surface area