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%.
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.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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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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