CE 704 · Chapter 7
Hydropower Engineering past question
7.1.4 Preliminary design of Francis and Pelton turbines
A Francis turbine works under a head of 25m and produces 11760 kW while running at 120 rpm. The turbine has been installed at a station where atmospheric pressure is 10 m of water and vapour pressure is 0.20 m of water. Calculate the maximum height of the straight draft tube for the turbine. [6]