Shown in the Figure is the complete pump performance chart for a 3x4-10 centrifugal pump at 1750 rpm. The centrifugal pump must deliver at least 200 gal/min of water at the total head of 50 ft. (2) What is the operating capacity for the selected impeller? _
Shown in the Figure is the complete pump performance chart for a 3x4-10 centrifugal pump at 1750 rpm. The centrifugal pump must deliver at least 200 gal/min of water at the total head of 50 ft. (2) What is the operating capacity for the selected impeller? _
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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Shown in the Figure is the complete pump performance chart for a 3×4-10 centrifugal pump at 1750 rpm. The centrifugal pump must deliver at least 200 gal/min of water at the total head of 50 ft.
(2) What is the operating capacity for the selected impeller? _________
A. 262.5 gal/min
B. 275 gal/min
C. 200 gal/min
D. 0 gal/min
Transcribed Image Text:Shown in the Figure is the complete pump performance chart for a 3x4-10 centrifugal pump
at 1750 rpm. The centrifugal pump must deliver at least 200 gal/min of water at the total head
of 50 ft.
(2) What is the operating capacity for the selected impeller?
Impeller diameter
10 in
Total head (m)
NPSH, (m)
35-
30
25
15
10
Total head (1)
110
100
NPSH, (1)
90
80
70-8 in.
60
50
406 in
30
20
10
0
10.0
275
7 in
5.0
2.5
0
43
200
53
O A 262.5 gal/min
O B. 275 gal/min
O C. 200 gal/min
O D.O gal/min
-61 65 69
1.5 HP.
400
Impeller 6 in.
71
72
600
53
-3 HP
7 in
-73-73.9
1000
5 HP
2 HP
25 50 75 100 125 150 175 200 225 250 275 300 325 350 375 400 425
800
Capacity (L/min)
8 in
73
72
1200
0 25 50 75 100 125 150 175 200 225 250 275 300 325 350 375 400 425
Capacity (gal/min)
71
65
7.5 HP
-9 in-
3x4-10
1750 RPM
1400
69
10 HP
10 in
1600
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