A Pelton turbine is to work at the foot of dam whose reservoir level is 220 m. The head at the full opening at the turbine nozzle is 200 m and the coefficient of velocity is 0.98. The turbine is to operate at 200 rpm and develop a power of
3.7 MW. Assuming the blade to jet speed ratio as 0.46, estimate the wheel diameter. If the blade outlet angle is 16°, determine the blade and hydraulic efficiencies. Neglect frictional losses.