Steam
Turbines
The steam turbine was invented in the last decade of the nineteenth century. It has undergone several changes in design during the past eight decades. The steam turbine has been used predominantly as prime mover in all thermal power stations. It is not likely to be replaced in the foreseeable future. Nowadays, steam turbines of 1000 MW capacity unit are built in many countries and units of 1500MW capacity are planned in future power programme. Future development in materials and other area promises to achieve even better performance and holds down cost of supplying our growing energy needs
The
steam
turbines
are
mainly
divided
into
two
groups
as
(a)
Impulse
turbine
(b)Impulse
Reaction
Turbines
(in
practice
known
are
reaction
Turbines
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