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In: Mechanical Engineering

1. A centrifugal water pump impeller is given an inlet and exit radius of 400 mm...

1. A centrifugal water pump impeller is given an inlet and exit radius of 400 mm and 1200 mm, and an inlet and exit blade thickness of 120 mm and 80 mm. The entering and exiting blade angles are 40o and 60o respectively. If the pump rotational speed is 575 rpm with and efficiency of 85%, determine: a) Ideal head (m) b) Fluid power for max pressure (kW) c) Shaft torque for max pressure (Nm)

solutions a) 488 m b) 29,155 kW c) 5.7 x 105 Nm

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