1. At the Shell oil refinery, the lubricating oil, at a velocity of 6 feet per second, is passed through a steam heated tube 15 feet in length and 1-inch 18 BWG. Steam is condensed on the outer...

Extracted text: 1. At the Shell oil refinery, the lubricating oil, at a velocity of 6 feet per second, is passed through a steam heated tube 15 feet in length and 1-inch 18 BWG. Steam is condensed on the outer surface of the tube at 220°F. Oil enters the tube at 90°F and leaves at 105°F. Assume that the tube is clean. The physical properties for oil are assumed constant: p = 53.5 lb/ft Cp = 0.48Btu/lb°F k = 0.08Btu/hr-ft-°F The viscosity varies with temperature as follows: 110 T, °F 80 90 100 130 140 220 4.4 p, Cp 22 20 18 16 14 12 Calculate h, the inside oil film coefficient of heat transfer.