The 28-in-diameter pump in Fig. 11.7a at 1170 r/min is used to pump water at 20°C through a piping system at 14,000 gal/min. (a) Determine the required brake horse- power. The average friction factor is 0.018. (b) If there is 65 ft of 12-in-diameter pipe upstream of the pump, how far below the surface should the pump inlet be placed to avoid cavitation?

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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The 28-in-diameter pump in Fig. 11.7a at 1170 r/min is
used to pump water at 20°C_through a piping system at
14,000 gal/min. (a) Determine the required brake horse-
power. The average friction factor is 0.018. (b) If there is
65 ft of 12-in-diameter pipe upstream of the pump, how far
below the surface should the pump inlet be placed to avoid
cavitation?
Transcribed Image Text:The 28-in-diameter pump in Fig. 11.7a at 1170 r/min is used to pump water at 20°C_through a piping system at 14,000 gal/min. (a) Determine the required brake horse- power. The average friction factor is 0.018. (b) If there is 65 ft of 12-in-diameter pipe upstream of the pump, how far below the surface should the pump inlet be placed to avoid cavitation?
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