A centrifugal pump impeller has an outer dia of $30\text{cm}$ and an…

Question

A centrifugal pump impeller has an outer dia of $30\text{cm}$ and an inner dia of $15\text{cm}$. The pump runs at $1200\text{rpm}$. The impeller vanes are set at a blade angle of $30^0$ at the outlet. If the velocity of flow id constant at $2.0\text{ m/s}$, calculate:

i. The velocity and direction of water at outlet.

ii. The head developed, by assuming a manometric efficiency of $0.85$.

iii. The blade angle at the inlet.

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• Centrifugal Pumps — topic
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