Parson, Charles
turbine
Steam Turbine
In a Parsons steam turbine nozzles apply steam to a curved blade. The blade whips the steam back in the opposite direction, simultaneously allowing steam to expand a bit. A stationary blade then redirects the steam towards the next blade. The process repeats until the steam is completely expanded. The moving blades are mounted radially on the rotor. The stationary blades are mounted to the case of the turbine.
Electrical power stations use large steam turbines driving turbo-generators to produce most of the world's electricity. These centralised stations are of two types: fossil fuel power plants and nuclear power plants. Other uses of steam turbines are in ships, pumps and motors at land based plant where steam is often available as a production by-product.

Pictured above: Parsons turbine from the Polish destroyer Wicher                                NEXT