Question

Water is to be pumped from a tank, located on the ground, to a cooling tower. The
tank is open to the atmosphere. The difference between the level of water in the tank
and discharge point is 15 metre. The velocity of water through a 40 mm internal
diameter discharge pipe is 3 m/s. In the pipe line there is a valve which is equivalent to
200 pipe diameters and a fitting equivalent to 150 pipe diameters. The length of the
entire piping is 30 metres. Calculate the power requirement of the pump.
Data: Density of water = 1000 kg/m3
Viscosity of water = 0.8 cP
The pump efficiency is 60%.

Answer 1

Answer:

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Answer 2

Water is to be pumped from ground level tank, which is open to atmosphere to

a cooling tower. The difference between the level of water in the tank and the

discharge point is 15 metres. The velocity of water through 40 mm internal

diameter discharge pipe is 3 m/s. In the pipe line there is a valve which is

equivalent to 200 pipe diameter an fitting equivalent to 150 pipe diameter. The

length of entire piping is 30 meters. Determine the power requirement of

pump if efficiency of pump is 60%. (