and cm respectively. The pipe is covered with cm thick glass wool insulation kWm deg C

Heat is lost to the surroundings at C by natural convection and radiation, with a combined natural

convection and radiation heat transfer coefficient of Wm

deg C Taking the heat transfer coefficient

inside the pipe to be Wm

deg C determine the rate of heat loss from the steam per unit length of the

pipe. Also, determine the temperature drops across the pipe shell and the insulation.