A penstock supplies water to Pelton turbine with a head of 80 m. One-third of head is lost in penstock due to friction. The flow rate of water from the nozzle is 2.5 m 3 /sec. The deflection angle of...

A penstock supplies water to Pelton turbine with a head of 80 m. One-third of head is lost in penstock due to friction. The flow rate of water from the nozzle is 2.5 m³/sec. The deflection angle of the jet is 165°. Speed ratio, Cu = 0.45 and Cv = 0.95. Calculate power developed by the turbine and its hydraulic efficiency.