The koyna hydroelectric project is equipped with four units of vertical shaft pelton turbines to be coupled with 7000kvA, 3 phase, 50 hertz generators. the generator are provided with 10 pairs of poles. the gross design head is 505m and the transmission efficiency of head race tunnel and penstock together is 94%. the four units together provide for a power of 260MW at efficiency of 91%. the nozzle efficiency is 98% and each turbine has four jets. take speed ratio to be 0.48 and flow coefficient to be 0.98 and nozzle diameter 25% bigger than jet diameter, estimate the; a)discharge for the turbine b)jet diameter c)nozzle tip diameter d)pitch circle diameter of the wheel e)specific speed f)number of buckets on the wheel
