CE 704 · Chapter 7
Hydropower Engineering past question
7.1.4 Preliminary design of Francis and Pelton turbines
A Pelton wheel develops 70 kW under a head of 100 m of water, it rotates at 400 rev/min. The diameter of penstock is 200 mm. The ratio of bucket speed to jet velocity is 0.46 and overall efficiency of the installation is 85%. Calculate (i) Volumetric flow rate (ii) Wheel diameter. [2+2]