Example4 A centrifugal pump is used to raise the water from the river to the reservoir, find: 1) total dynamic head. 2) water power, pump power and motor power. 3) monthly cost pump operation, if power cost is 4 cents and pump operates 20 hr/day. If:- 1. Q= 1.9 m'/min 2- Elevation between the reservoir and the pump is 25 m and the length of the pipe is 365 m 3. Diameter of suction lift and discharge pipes 200 mm and length of suction lift is 10 m. 4- Barometric pressure is 88 Kpa, vapor pressure 2.5 Kpa 5- NPSH).- 40 Kpa 6- Efficiency of pump and motor is 80%. 7. Neglect minor losses 8. Use f = 0.02, Y= 10 Kn/m

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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Example4
A centrifugal pump is used to raise the water from the river to the reservoir,
find:
1) total dynamic head.
2) water power, pump power and motor power.
3) monthly cost pump operation, if power cost is 4 cents and pump operates 20
hr/day.
If:-
1. Q= 1.9 m/min
2. Elevation between the reservoir and the pump is 25 m and the length of the pipe is 365 m
3- Diameter of suction lift and discharge pipes 200 mm and length of suction lift is 10 m.
4- Barometric pressure is 88 Kpa, vapor pressure 2.5 Kpa
5- NPSH). = 40 Kpa
6- Efficiency of pump and motor is 80%.
7. Neglect minor losses
8- Use f = 0.02, Y= 10 Kn/m
Transcribed Image Text:Example4 A centrifugal pump is used to raise the water from the river to the reservoir, find: 1) total dynamic head. 2) water power, pump power and motor power. 3) monthly cost pump operation, if power cost is 4 cents and pump operates 20 hr/day. If:- 1. Q= 1.9 m/min 2. Elevation between the reservoir and the pump is 25 m and the length of the pipe is 365 m 3- Diameter of suction lift and discharge pipes 200 mm and length of suction lift is 10 m. 4- Barometric pressure is 88 Kpa, vapor pressure 2.5 Kpa 5- NPSH). = 40 Kpa 6- Efficiency of pump and motor is 80%. 7. Neglect minor losses 8- Use f = 0.02, Y= 10 Kn/m
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