Saturated steam at 40 psia flows at 5 fps through a schedule-40, 1-in. steel pipe. The convective

Saturated steam at 40 psia flows at 5 fps through a schedule-40, 1½-in. steel pipe. The convective heat-transfer coefficient by condensing steam on the inside surface may be taken as 1500 Btu/h ft² °F. The surrounding air is at 80°F, and the outside surface coefficient is 3 Btu/ft² °F. Determine the following:
a. The heat loss per 10 ft of bare pipe.
b. The heat loss per 10 ft of pipe insulated with 2 in. of 85% magnesia.
c. The mass of steam condensed in 10 ft of bare pipe.