Question: Attempt following question : A centrifugal pump impeller having external and internal diameter 400 mm and 200 mm respectively is running at 1000 rpm.

Attempt following question : A centrifugal pump impeller having external and internal diameter 400 mm and 200

Attempt following question : A centrifugal pump impeller having external and internal diameter 400 mm and 200 mm respectively is running at 1000 rpm. The rate of flow through the pump is 8000 ltr/hr and velocity of flow is constant and equal to 2.4 m/s, The diameter of the suction and delivery pipes are 120 and 80mm respectively and suction and delivery heads are 5p(abs) and 25m(abs). If the power required to drive the pump is 21 KW and outlet vane angle is 45. Determine : (a) Leb) Je) C D Cas (e) (f) Inlet vane angle. 12.91 Blade velocity at inlet and outlet. (0-u7, 20-94 Whirl velocity at outlet. 19.54 Euler head in m. 39.57 Determine work done by the impeller on water per second. 2-889 Nm /5 Determine the manometric efficiency of the pump. 50%. 8(CO2)

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