Homework Question 6: A 15-m-long and 10-cm-diameter hot-water pipe of a district heating system is buried in the soil 90 cm below the ground surface. The outer surface temperature of the

pipe is 75°C. Taking the surface temperature of the earth to be 10°C and the thermal conductivity of the soil at that location to be 0.8 W/m.K, determine the rate of heat loss from the pipe. List the references you used to solve the problem. 90 cm D 10 cm L = 15 m 10°C 75°C