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b)

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Find the power required to drive a centrifugal pump which delivers 40 litres of
water per second to a height of 20 m through a 150 mm diameter and 100 mm
long pipe. The overall efficiency of the pup is 70 %. And Darcy’s f= 0.006 for
the pipe line. Assume inlet loss in suction pipe is 0.33m.

Explain the working of air vessels.

Explain the working of centrifugal pump with neat sketch.

Derive specific speed of a centrifugal pump. What is NPSH?

Why is priming necessary in centrifugal pumps?

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