Water (25°C) is being supplied from a pump station to a reservoir tank through a horizontally-placed old water main (inner diameter: 56 cm) at a constant velocity of 2.5 m/s. The distance between the pump station and the reservoir tank is 100 m. Assume that the pressure in the pipeline remains the same; also assume that a = 1.0 throughout the pipeline. What is the output power requirement (in W, Watt) for the pump to combat against the frictional effects? Hint: Use the Moody diagram in your solution. Pump Station O 7.9 kW O 5.7 kW O 6.8 kW O 4.6 kW Velocity: 2.5 m/s Distance: 100 m Reservoir Tank

Structural Analysis
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Chapter2: Loads On Structures
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Water (25°C) is being supplied from a pump station to a reservoir tank through a horizontally-placed old water main (inner diameter: 56 cm) at a constant velocity of 2.5 m/s. The distance between the
pump station and the reservoir tank is 100 m. Assume that the pressure in the pipeline remains the same; also assume that a = 1.0 throughout the pipeline. What is the output power requirement (in
W, Watt) for the pump to combat against the frictional effects? Hint: Use the Moody diagram in your solution.
Pump Station
O 7.9 kW
O 5.7 kW
O 6.8 kW
O 4.6 kW
Velocity: 2.5 m/s
Distance: 100 m
Reservoir Tank
Transcribed Image Text:Water (25°C) is being supplied from a pump station to a reservoir tank through a horizontally-placed old water main (inner diameter: 56 cm) at a constant velocity of 2.5 m/s. The distance between the pump station and the reservoir tank is 100 m. Assume that the pressure in the pipeline remains the same; also assume that a = 1.0 throughout the pipeline. What is the output power requirement (in W, Watt) for the pump to combat against the frictional effects? Hint: Use the Moody diagram in your solution. Pump Station O 7.9 kW O 5.7 kW O 6.8 kW O 4.6 kW Velocity: 2.5 m/s Distance: 100 m Reservoir Tank
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