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A Pelton wheel 245 m in diameter operates under the following conditions Net head 370 m coefficient of velocity 098 speed ratio 047 relative velocity of water at outlet 090 times

A Pelton wheel, 2.45 m in diameter, operates under the following conditions:

Net head = 370 m; co-efficient of velocity: 0.98; speed ratio = 0.47; relative velocity of water at outlet = 0.90 times that at inlet; deflection of jet =160°; diameter of the jet = 0.88 m. Determine the following:

(i) The input power to the shaft, and

(ii) The Rpm. of the wheel.

 

Jun 15 2020 View more View Less

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