A small liquid water pump is located 15 m down in a well (see Fig. 6.11), taking water
in at 10?C, 90 kPa at a rate of 1.5 kg/s. The exit line is a pipe of diameter 0.04 m that
goes up to a receiver tank maintaining a gauge pressure of 400 kPa. Assume the process
is adiabatic with the same inlet and exit velocities and the water stays at 10?C. Find the
required pump work.