Sediment erosion in hydraulic turbines has been a major challenge in development of hydropower projects in Nepal. The rivers in this region carry large amount of sediments containing hard abrasive minerals, which cause rapid erosion of turbine components and affect the performance of turbines. This in turn decreases the efficiency, reliability and operating life of the projects. Recent studies have shown that it is possible to reduce such effects in Francis turbines through optimization in the hydraulic design of turbine runner. This book explains about comparative study of sediment erosion...