The Keystone Pipeline has an inside diameter of 36 inches andcarries a flow rate of 590,000 barrels of crude oil per day at 40°C. If the pipe is new, non-corroded steel, estimate the pumphorsepower required per mile of pipe. Use rho=1.67 slug/ft3 andμ=1.11x10-4 slug/ft*sec for the oil. This pipeline is in a coldenvironment, does it make sense that the oil is so warm?

A2-m rigid tank initially contains saturated water vapor at 100 kpa. the tank is connected to a supply line through a valve. steam is flowing in the supply line at 600 kpa and 300 c. the valve is opened, and steam is allowed to enter the tank until the pressure in the tank reaches the line pressure, at which point the valve is closed. a thermometer placed in the tank indicates that the temperature at the final state is 200°c. determine (a) the mass of steam that has entered the tank (b) the amount of heat transfer.