CE 704 · Chapter 5
Hydropower Engineering past question
5.4 Sediment Handling measures: Methods of bed load and suspended load handling in RoR headworks, Design of settling basin (Particle and concentration approach), Estimation of sediment volume in Settling basin, Flushing of deposited sediment, estimation of frequency of flushing
Determine the dimensions of a desilting basin for a high head hydropower plant with a discharge of 32 m³/s. The basin must trap sediment particles coarser than 0.15 mm. Take w=0.025 m/s and λ=1.5. Additionally, draw a plan and longitudinal section of the desilting basin, illustrating the major components and the flushing arrangement. [5+2]