Underground water as shown Figure 2 is to be pumped by a 78%-efficient 5 kW submerged pump to a pool whose free surface is 30 m above the underground water level. The diameter of the pipe is 7 cm on the intake side and 5 cm on the discharge side. Determine i. The maximum flow rate of water. ii. The velocity of the water through the pipe at the discharge side. Assume the elevation difference between the pump inlet and the outlet and the effect of the kinetic energy correction factors to be negligible. Pool 30 m Figure 2
Underground water as shown Figure 2 is to be pumped by a 78%-efficient 5 kW submerged pump to a pool whose free surface is 30 m above the underground water level. The diameter of the pipe is 7 cm on the intake side and 5 cm on the discharge side. Determine i. The maximum flow rate of water. ii. The velocity of the water through the pipe at the discharge side. Assume the elevation difference between the pump inlet and the outlet and the effect of the kinetic energy correction factors to be negligible. Pool 30 m Figure 2
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Transcribed Image Text:Underground water as shown Figure 2 is to be pumped by a 78%-efficient 5 kW
submerged pump to a pool whose free surface is 30 m above the underground water
level. The diameter of the pipe is 7 cm on the intake side and 5 cm on the discharge
side. Determine
i.
The maximum flow rate of water.
ii.
The velocity of the water through the pipe at the discharge side.
Assume the elevation difference between the pump inlet and the outlet and the effect
of the kinetic energy correction factors to be negligible.
Pool
30 m
Figure 2
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