Question: A pump whose operating characteristics are described in Problem 14.14 is to be used in the system depicted below. Determine (a) the discharge rate and

A pump whose operating characteristics are described in Problem 14.14 is to be used in the system depicted below. Determine (a) the discharge rate and (b) power required.

Diameter = 0.36 m - 0.90 m Steel pipe 0.5 m Elevation = 24 m Elevation = 18 m 3 m Water

Data From Problem 14.14

Performance curves for an operating centrifugal pump are shown below in both conventional units and in dimensionless form. The pump is used to pump water at maximum efficiency at a head of 90 m. Determine, at these new conditions, (a) the pump speed required and (b) the rate of discharge.

6. CH 1.00 Efficiency, n 0.75 Cp 3 0.50 0.25 0.04 0.08 0.12 0.16 Co dɔ u

Diameter = 0.36 m - 0.90 m Steel pipe 0.5 m Elevation

Diameter = 0.36 m - 0.90 m Steel pipe 0.5 m Elevation = 24 m Elevation = 18 m 3 m Water 6. CH 1.00 Efficiency, n 0.75 Cp 3 0.50 0.25 0.04 0.08 0.12 0.16 Co d u

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