Q.1 Water enters a pump impeller radially. It leaves the impeller with a tangential component of absolute velocity of 10 m/s. The impeller exit diameter is 60 mm, and the impeller speed is 1800 rpm. If the stagnation pressure rise across the impeller is 45 kPa, determine the loss of available energy across the impeller and the hydraulic efficiency of the pump. Ans. 11.6 N. m/Kg. 79.6%

Elements Of Electromagnetics
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ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Q.1 Water enters a pump impeller radially. It leaves the
impeller with a tangential component of absolute velocity
of 10 m/s. The impeller exit diameter is 60 mm, and the
impeller speed is 1800 rpm. If the stagnation pressure
rise across the impeller is 45 kPa, determine the loss of
available energy across the impeller and the hydraulic
efficiency of the pump.
Ans. 11.6 N. m/Kg, 79.6%
Transcribed Image Text:Q.1 Water enters a pump impeller radially. It leaves the impeller with a tangential component of absolute velocity of 10 m/s. The impeller exit diameter is 60 mm, and the impeller speed is 1800 rpm. If the stagnation pressure rise across the impeller is 45 kPa, determine the loss of available energy across the impeller and the hydraulic efficiency of the pump. Ans. 11.6 N. m/Kg, 79.6%
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