CE 704 · Chapter 6
Hydropower Engineering past question
6.3 Penstocks and Pressure shaft: importance, conditions of their application, general arrangement, hydraulic transients (water hammer), Computation of hydrodynamic pressure, sizing of penstock/pressure shaft and estimation of thickness of steel in penstock/pressure shaft
A hydropower project is designed to carry a flow of 7.5 m³/sec through a tunnel of diameter 2.5 m. A simple surge tank of diameter 7 m is located at a distance of 2,500 m from the reservoir. Calculate total time period of oscillation of wave for full load rejection. Also, estimate height of the surge tank. Take friction factor=0.018. [6]