Wednesday, April 2, 2014

Classification of Steam Turbines

C       Classification of Steam Turbines:

Based on exhaust condition:
a.          Condensing
b.         Non condensing
c.          Automatic extraction
d.         Mixed pressure
e.          Regenerative extraction
f.          Reheat

Based on stage design:
a.          Impulse
b.         Reaction

Based on steam flow:
a.          Axial flow
b.         Radial flow
c.          Mixed flow

Based on stages:
a.          Single stage
b.         Multi stage

Based on casing or shaft design:
a.        Single casing
b.        Tandem casing (two or more)
c.        Cross compound

Based on exhaust stages in parallel:
  1. Double flow
  2. Triple flow

Based on type of drive:
  1. Generator
  2. Mechanical drive



What is Steam Turbine?

                                          STEAM TURBINE

1.1                      A stem turbine is an engine in which the thermal energy of the steam is converted into mechanical energy of rotation. In steam turbine the energy of the steam is transferred into kinetic energy by expansion through nozzles, and the kinetic energy of the resulting jet is in turn converted into force doing work on rings of blades mounted on a rotating part.