The 32-in diameter pump has a performance curve as below. The pump is used at 1170 rpm in a system whose head curve is hp = 110 + 1.5Q2 (in ft), with Q in units of thousands of gallons of water per minute. Please estimate the discharge required for one pump installed in the system. 800 n=1170 r/min NPSH 50 40

Elements Of Electromagnetics
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The 32-in diameter pump has a performance curve as below. The pump is used at 1170 rpm in a system whose head curve is hp = 110 + 1.5Q2 (in ft), with Q in units of thousands of gallons of water
per minute. Please estimate the discharge required for one pump installed in the system.
Total head, ft
800
700
600
500
400
300
200
0
O 20000 GPM
O 15000 GPM
O 12500 GPM
O 17500 GPM
n = 1170 r/min
36-in dia.
32-in dia.
28-in dia.
8
NPSH
1
1500 bhp
.87%
88%
2000 bhp
3000 bhp
87%
12
16
20
24
U.S. gallons per minute x 1000
3500 bhp
2500 bhp
28
50
40
30
20
NPSH, ft
Transcribed Image Text:The 32-in diameter pump has a performance curve as below. The pump is used at 1170 rpm in a system whose head curve is hp = 110 + 1.5Q2 (in ft), with Q in units of thousands of gallons of water per minute. Please estimate the discharge required for one pump installed in the system. Total head, ft 800 700 600 500 400 300 200 0 O 20000 GPM O 15000 GPM O 12500 GPM O 17500 GPM n = 1170 r/min 36-in dia. 32-in dia. 28-in dia. 8 NPSH 1 1500 bhp .87% 88% 2000 bhp 3000 bhp 87% 12 16 20 24 U.S. gallons per minute x 1000 3500 bhp 2500 bhp 28 50 40 30 20 NPSH, ft
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