Impulse Turbine

Impulse Turbine Points : Impulse Turbine, Definition Impulse turbine the rotor has a cycle of rounded blades set on its edge. High pressure steam is prepared to pass through nozzles which change pressure energy of steam into kinetic energy.Thus high velocity steam jet at outlet of nozzle impinges on blades. Curved blades on edge of rotor deflect steam due to their curved form. Change in direction of steam motion lead to adjust of momentum of steam. Rate of change of momentum is equivalent to impulse or force. Therefore, a propelling force acts on blades due to which rotor starts to rotate.