fluids mechanics 3

A reservoir with a head of 40m supplies a Pelton wheel through a pipeline 4km long. The pipeline transmits power with a maximum efficiency (66,7%). The diameter of the wheel is 400mm, the nozzle diameter 20mm and the blades turn the jet through an angle of 165. Friction causes a loss of 10% as the water passes over the blades Calculate the rpm of the wheel for maximum efficiency (U=0,46V1), the hydraulic power and the hydraulic efficiency. (Cv=1) What is the velocity of the jet At what rpm will the wheel run What is the hydraulic power of the turbine What is the kinetic energy of the jet What is the hydraulic efficiency of the wheel only Enter the value as a whole number (eg if your answer in 65\%, enter the number 65 in the box NOT 0.65)