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Transcribed Image Text:151. A pump, which is geometrically similar to the one shown below with the 30 cm impeller
installed, has an impeller diameter of 60 cm and has a brake horsepower of 160 kW at
BEP when pumping a fluid with a density of 680 kg/m³. Determine the BEP head and
flow rate and the appropriate speed to run the pump.
70
1750 rpm
Water (20°C)
35 cm
60% 70%
BEP (n=82%)
80%
60
50
50
30 cm
25 cm
20 cm
Head (m)
30
10
40
20
10
10
NPSH
50
25
25
NPSH (m)
0
0
0
1000
2000
3000
4000
5000
6000
7000
8000
9000
10000
Flow (L/min)
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