Two identical centrifugal pumps connected in series are used to pump water between two storage tanks that are open to the atmosphere, through a cylindrical pipe with ID of 0.1 m on both the discharge and suction side. The total equivalent length on the suction and discharge sides are 20m and 40m respectively. The change in static head is 7m. Pump Data:   Q( m3/s) 0 0.01 0.02 0.03 0.04 Δh (m) 23 21.5 18.5 11 3     Assume the friction factor f to be 0.02 and is constant throughout the range of flowrates.   a) Determine the operating point of the system.​​​​​​ b) Determine the power requirement for the pumping system if the pump efficiency is 75%.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Two identical centrifugal pumps connected in series are used to pump water between two storage tanks that are open to the atmosphere, through a cylindrical pipe with ID of 0.1 m on both the discharge and suction side. The total equivalent length on the suction and discharge sides are 20m and 40m respectively. The change in static head is 7m.

Pump Data:

 

Q( m3/s)

0

0.01

0.02

0.03

0.04

Δh (m)

23

21.5

18.5

11

3

 

 

Assume the friction factor f to be 0.02 and is constant throughout the range of flowrates.

 

a) Determine the operating point of the system.​​​​​​
b) Determine the power requirement for the pumping system if the pump efficiency is 75%.

 

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