Ch-4: Steam Turbine

Ch-4: Steam Turbine: Classification of Steam Turbines: Impulse turbines, Reaction turbines, The impulse principle, The reaction principle, The impulse turbine, Compounding of impulse turbine: Pressure compounding, Velocity compounding, Pressure-Velocity compounding, The impulse-reaction turbine, Flow of Steam Through Impulse Turbine, Tangential force, Axial force, Power produced, Blade efficiency, Example (1), Home Work, Stage Efficiency, Degree of Reaction, Comulative Heat Drop, Reheat Factor, Overall Efficiency, Example (2), Losses in Steam Turbines: Internal losses: Friction losses, Leakage losses, External losses, Turbine Governing and Control: Throttle governing, Nozzle governing, By-pass governing, Tutorial Sheet 4.