2. The characteristics of two centrifugal pumps at constant speed are as follows: Q(m3/s) 0.0 006 0.012 0.018 0.024 0.030 0.036 Pump A H(m) 22.6 21.9 20.3 17.7 14.2 9.7 3.9 n(%) 32 74 86 85 66 28 Pump BH ( m) 1 6.2 13.6 1 1.9 11.6 10.7 9.0 6.4 n(%) 14 34 60 80 80 60 A pumps is required to lift water continuously through 3.2 m of vertical lift and the pipe to be used is 21 m long, 10 cm diameter and friction coefficient is 0.005. Select the more suitable pump between pump A and B for this duty and justify your selection. What power input will be required by the selected pump?

2. The characteristics of two centrifugal pumps at constant speed are as follows: Q(m3/s) 0.0 006 0.012 0.018 0.024 0.030 0.036 Pump A H(m) 22.6 21.9 20.3 17.7 14.2 9.7 3.9 n(%) 32 74 86 85 66 28 Pump BH ( m) 1 6.2 13.6 1 1.9 11.6 10.7 9.0 6.4 n(%) 14 34 60 80 80 60 A pumps is required to lift water continuously through 3.2 m of vertical lift and the pipe to be used is 21 m long, 10 cm diameter and friction coefficient is 0.005. Select the more suitable pump between pump A and B for this duty and justify your selection. What power input will be required by the selected pump?

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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A fluid is a substance that is continuously deformed by the application of shear stress. The rate of deformation of a fluid depends on its viscosity. The fluid tries to flow when it interacts with some other system.

Question

2. The characteristics of two centrifugal pumps at constant speed are as follows:
Q(m3/s)
0.0
006
0.012 0.018 0.024 0.030 0.036
Pump A H(m)
22.6
21.9
20.3
17.7
14.2
9.7
3.9
n(%)
32
74
86
85
66
28
Pump B H(m)
1 6.2 13.6 1 1.9 11.6 1 0.7
9.0
6.4
n(%)
14
34
60
80
80
60
A pumps is required to lift water continuously through 3.2 m of vertical lift and the pipe to be
used is 21 m long, 10 cm diameter and friction coefficient is 0.005.
Select the more suitable pump between pump A and B for this duty and justify your selection.
What power input will be required by the selected pump?
[Pump B, 3.53 kW]

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