Training manual on steam turbine maintenance

TYPE OF TURBINE

• IMPULSE TURBINE = In a stage of Impulse turbine the pressure/Enthalpy drop takes place only in Fixed blades and not in the moving blades

• REACTION TURBINE = In a stage of Reaction Turbine the Pressure/enthalpy drop takes place in both the fixed and moving blades.

WORKING OF STEAMTURBINE

• A steam turbine works on the principle of

conversion of High pressure & temperature

steam into high Kinetic energy , thereby

giving torque to a moving rotor.

• For above energy conversion there is

requirement of converging /Converging-

Diverging Sections

• Such above requirement is built up in the

space between two consecutive blades of

fixed and moving blades rows.

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