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
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
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**Problem Statement:**

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 α = 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.

**Diagram Explanation:**

- The diagram consists of a yellow block labeled "Pump Station" on the left and a blue block labeled "Reservoir Tank" on the right. 
- These blocks are connected by a blue horizontal pipeline.
- An arrow within the pipeline indicates the flow direction of the water, labeled "Velocity: 2.5 m/s."
- The pipeline's length is labeled as "Distance: 100 m.”

**Options for Power Requirement:**

- 7.9 kW
- 5.7 kW
- 6.8 kW
- 4.6 kW

Students need to calculate the output power requirement using the given data and the Moody diagram.
Transcribed Image Text:**Problem Statement:** 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 α = 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. **Diagram Explanation:** - The diagram consists of a yellow block labeled "Pump Station" on the left and a blue block labeled "Reservoir Tank" on the right. - These blocks are connected by a blue horizontal pipeline. - An arrow within the pipeline indicates the flow direction of the water, labeled "Velocity: 2.5 m/s." - The pipeline's length is labeled as "Distance: 100 m.” **Options for Power Requirement:** - 7.9 kW - 5.7 kW - 6.8 kW - 4.6 kW Students need to calculate the output power requirement using the given data and the Moody diagram.
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