Homework
• Pure water flows through a horizontal section of pipe that is 5 feet
long and 1 inch in diameter. The water entering the pipe has a flow
rate of 100 kg/min with a temperature of 100°C and pressure of 2 bar.
The exiting water also has a flow rate of 100 kg/min and temperature
of 100°C, but the pressure is 1.95 bar. The density of water at these
conditions is 961.5 kg/m3
. Determine the rate at which work is done,
both at the pipe entrance and at the pipe exit