A centrifugal pump has an impeller of diameter (D) of 300mm. When pumping 20°C water at a fixed rotational speed of 1500 RPM, the measured flow rate Q and pressure rise P are given by the manufacturer as follows: Flow Rate (L/s) 13 19 25 32 38 44 Pressure Rise (Bar) 2.5 2.4 2.35 2.2 2.0 1.6 It is desired to use the same pump, running at 945 RPM, to pump 20°C water at 221/s. According to your dimensionless correlation, what pressure rise p is expected?

A centrifugal pump has an impeller of diameter (D) of 300mm. When pumping 20°C water at a fixed rotational speed of 1500 RPM, the measured flow rate Q and pressure rise P are given by the manufacturer as follows: Flow Rate (L/s) 13 19 25 32 38 44 Pressure Rise (Bar) 2.5 2.4 2.35 2.2 2.0 1.6 It is desired to use the same pump, running at 945 RPM, to pump 20°C water at 221/s. According to your dimensionless correlation, what pressure rise p is expected?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Question

1(C)
A centrifugal pump has an impeller of diameter (D) of 300mm. When pumping
20°C water at a fixed rotational speed of 1500 RPM, the measured flow rate Q and
pressure rise Pare given by the manufacturer as follows:
Flow Rate (L/s)
13
19
25
32
38
44
Pressure Rise (Bar)
2.5
2.4
2.35
2.2
2.0
1.6
It is desired to use the same pump, running at 945 RPM, to pump 20°C water at 22L/s.
According to your dimensionless correlation, what pressure rise p is expected?

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