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Category > Engineering Posted 20 May 2017 My Price 8.00

Determine the best efficiency point

 

A 37-cm-diameter centrifugal pump, running at 2140 rev/min with water at 20°C produces the following performance data:

Q, m3/s:

0.0

0.05

0.10

0.15

0.20

0.25

0.30

H, m:

105

104

102

100

95

85

67

P, kW:

100

115

135

171

202

228

249

η

0%

44%

74%

86%

92%

91%

79%

(a) Determine the best efficiency point. (b) Plot CHversus CQ. (c) If we desire to use this same pump family to deliver 7000 gal/min of kerosene at 20°C at an input power of 400 kW, what pump speed (in rev/min) and impeller size (in cm) are needed? What head will be developed?

 
 

Answers

Alpha Geek
(8)
Status NEW Posted 20 May 2017 09:05 AM My Price 8.00

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1495273460-653611_1_636308051630797905_FM-Centrifugal-Pump-Efficiency.pdf
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