Elements Of Electromagnetics
7th Edition
ISBN: 9780190698614
Author: Sadiku, Matthew N. O.
Publisher: Oxford University Press
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Transcribed Image Text:You must select a submerged centrifuge multicellular pump for a borehole on a worksite that requires a flow of
1.500l/s. The borehole itself is 150m deep (see figure 5). If the outlet pipe has the following properties, then:
wwww
wwwwwww
Water outlet (open air)
wwww
Outlet pipe
L = 200m
Borehole
wwwww
Pump
f= 0.04 D = 38mm
Figure 5 Borehole and pumping schematic
A) Choose a pump from those presented in figure 6 (you must select the most adequate model) if there is no local
head-loss, only friction related head-loss. You must draw the complete characteristic curve for the pipe directly on
figure 6.;
B) Is cavitation an issue if NPSHrequired is 5m briefly discuss the results.
C) Determine the supplied power output by the pump (in kW) as well as the absorbed power output when the
pump reaches it's operational flow for the pump you have selected. |
N.B. Hypothesize that water in the borehole is level with the pump intake. The pump intake is the same diameter
as the outlet pipe. Patm-100 kPa et Twater=100C
![350
H[m]
300
250
200
150
100
[%]4
50
og
60
50
40
30
20
0
0
0.0
"
1
"
L
"
L
"
I
to
I
1
1
I
+
+
5
I
"
"
A
F
"
I
4
++
II
T
"
I
I
I
I
2
0.5
10
"
10
T
fr
T
4
"
"
15
8GS75
8GS75R
8GS55
8GS55R
8GS40
8GS30
8GS22
8GS15
8GS11
8GS07
1.0
4
20
20
1.5
25
30
2.0
30
40
2.5
35
7.1%)
10
40 Q[imp gpm]
Q[US gpm]
3.0
1100
1000
900
800
700
600
[24] H
500
400
300
200
100
0
Q[m³/h]
Q[/s]
Extrait du Catalogue technique: pompes et systèmes de pompage pour le génie climatique, l'adduction, la surpression d'Eau et le relevage des
eaux usées .p.621
Figure 6 Pump characteristic curves and efficiency curve](https://content.bartleby.com/qna-images/question/f202e907-5449-4d59-a324-7d6009f3a6a2/d38fdf41-07d3-4a32-91ba-d72ba7399387/h8defp_processed.png)
Transcribed Image Text:350
H[m]
300
250
200
150
100
[%]4
50
og
60
50
40
30
20
0
0
0.0
"
1
"
L
"
L
"
I
to
I
1
1
I
+
+
5
I
"
"
A
F
"
I
4
++
II
T
"
I
I
I
I
2
0.5
10
"
10
T
fr
T
4
"
"
15
8GS75
8GS75R
8GS55
8GS55R
8GS40
8GS30
8GS22
8GS15
8GS11
8GS07
1.0
4
20
20
1.5
25
30
2.0
30
40
2.5
35
7.1%)
10
40 Q[imp gpm]
Q[US gpm]
3.0
1100
1000
900
800
700
600
[24] H
500
400
300
200
100
0
Q[m³/h]
Q[/s]
Extrait du Catalogue technique: pompes et systèmes de pompage pour le génie climatique, l'adduction, la surpression d'Eau et le relevage des
eaux usées .p.621
Figure 6 Pump characteristic curves and efficiency curve
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I can't see the right side of the answer
Transcribed Image Text:1 L = 10³ m³ Depth of the boi
lying Bernoulli's equation at 1 and
Transcribed Image Text:stem and pun
= H₂ + H₂ - HL:
selectedB As,
Solution
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I can't see the right side of the answer
Transcribed Image Text:1 L = 10³ m³ Depth of the boi
lying Bernoulli's equation at 1 and
Transcribed Image Text:stem and pun
= H₂ + H₂ - HL:
selectedB As,
Solution
by Bartleby Expert
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