PELTON,KAPLAN AND FRANCIS TURBINE
PELTON TURBINE :The pelton wheel turbine is impulse turbine,which is of tangential flow type. In this turbine energy at the inlet of turbine is in the form of kinetic energy.This is used for low flow rate and high head.Pressure through out remains atmospheric. The main parts of pelton turbine are: 1)Nozzle or flow controlling:It controls the rate of flow as per requirement of variable power. 2)Runner or bucket:It is of shape double hemispherical seperated by splitter which devides water without shock. 3)Casing:Casing has not hydraulic function.It only prevent water from splashing. 4)Braking jet:To stop the runner in smallest possible time. Fig:Pelton wheel turbine runner FRANCIS TURBINE :Francis turbine is reaction turbine.In this type of turbine at inlet is in the form ...