A Pelton wheel functions under an available head of 150 m and consumes 50 liters of...

A Pelton wheel functions under an available head of 150 m and consumes 50 liters of water per sec. The 600 mm diameter wheel rotates at 600 rpm. The coefficient of velocity of the nozzle is 0.98. The blade angle at the outlet is 16o . If the relative velocity at outlet is 90% of that at inlet.

i) Find the velocity of whirl at outlet

ii) Estimate the work done by the runner per sec

iii) Estimate the hydraulic efficiency

iv) Calculate the diameter of the nozzle, and

v) Comment on why the hydraulic efficiency of the wheel is relatively low and how can it be improved.

Expert Solution

samet mamat answered 4 months ago

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