Superheated steam at 500 K flows in Schedule 40 steel pipe of nominal size 6 in. Determine the effect of adding magnesia insulation to the pipe as a function of insulation thickness and outside heat transfer coefficient. Assume an inside heat transfer coefficient of 7000 W/m2 K and surroundings at 300 K. Prepare a graph of heat loss per unit length as a function of insulation thickness, with the outside heat transfer coefficient (10 < ho < 100 W/m2 K) as a parameter. Assume k_ Schedule 40 steel pipe = 0.073 W/m K.