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Impulse Steam Turbine and Reaction Steam Turbine- Marine Machinery Details
The steam turbine is a device for obtaining mechanical work from the
energy stored in steam. There are two main types of turbine, the 'impulse' and the 'reaction'.
The names refer to the type of force which acts on the blades to turn the
turbine wheel.
The impulse arrangement is made up of a ring of nozzles followed by a
ring of blades. The high-pressure, high-energy steam is expanded in the
nozzle to a lower-pressure, high-velocity jet of steam. This jet of steam is
directed into the impulse blades and leaves in a different direction.