CE 704 · Chapter 6
Hydropower Engineering past question
6.2 Forebay and Surge Tanks: importance, general arrangement, condition of their application, hydraulic design
A RoR hydel plant has a circular surge tank of 13 m diameter at the end of 1.8 km long headrace pressure tunnel with 3.95 m diameter. The penstock system consists of 4 numbers, 400 m long, 1.30 m diameter each. Calculate maximum up-surge, down-surge and time of oscillations if frictional factor for tunnel and penstock are 0.016 and 0.025 respectively. [8]