A pelton wheel is receiving water from a penstock with a gross head of 510 m

One third of gross head is lost in friction in the penstock. The rate of flow through th nozzle fitted at the end of penstock is 2.2 m3/s. The angle of deflection of the jet is 165ยบ.

Determine :

i) the power given by water to the runner

ii) hydraulic efficiency of the pelton wheel.

Take Cv = 1.0 KJ/Kg.K and speed ratio = 0.45

Subject : Thermal and Fluid Power Engineering

Topic : Impacts of Jets and Water Turbine

Difficulty : High

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