Question

You are part of the water supply engineering team of your council. Your team is working on a certain project. In this project, water at 15°C is drained from a large reservoir using two horizontal commercial steel pipes connected in series. The first pipe is 20 m long and has a 10-cm diameter, while the second pipe is 35 m long and has a 4-cm diameter. The water level in the reservoir is 18 m above the centerline of the pipe. Neglecting the effect of the kinetic energy correction factor and minor loss, determine the discharge rate of water from the reservoir. Assume that the flows through the pipes are fully turbulent (i.e. the friction factor is independent of Reynolds number).

Answer 1