Steam Turbine

A steam turbine is a device that extracts thermal energy from pressurized steam and uses it to do mechanical work on a rotating output shaft. Its modern manifestation was invented by Sir Charles Parsons in 1884.

Because the turbine generates rotary motion, it is particularly suited to be used to drive an electrical generator – about 90% of all electricity generation in the United States (1996) is by use of steam turbines. The steam turbine is a form of heat engine that derives much of its improvement in thermodynamic efficiency through the use of multiple stages in the expansion of the steam, which results in a closer approach to the ideal reversible process.

Read more about Steam TurbineHistory, Types, Principle of Operation and Design, Direct Drive, Marine Propulsion, Locomotives, Testing

Other articles related to "turbines, steam, steam turbine, steam turbines, turbine":

South Humber Bank Power Station - Specification
... Phase 1 consists of three 166MW gas turbines with three heat recovery steam generators ... (CMI) and International Combustion, and 255MW steam turbine ... Phase 2 consists of two 169MW gas turbines, two heat recovery steam generators and a 171MW steam turbine ...
Steam Turbine - Testing
... used to standardize the procedures and definitions used to test steam turbines ... the manufacturer, and has some significance to the design of the turbine and associated systems ... In the United States, ASME has produced several performance test codes on steam turbines ...
SS Governor Cobb - Development and Design
... Fletcher had recently licenced the revolutionary steam turbine technology from the Parsons Marine Steam Turbine Company of Great Britain, and a Parsons design was utilized for Governor Cobb's powerplant ... The powerplant consisted of one large high-pressure central turbine for providing the motive power to a central propeller, and a pair of low-pressure turbines driving two ... Steam was provided by six single-ended, forced draft Scotch boilers delivering a pressure of 150 pounds ...
Surface Condenser
... water-cooled shell and tube heat exchanger installed on the exhaust steam from a steam turbine in thermal power stations ... These condensers are heat exchangers which convert steam from its gaseous to its liquid state at a pressure below atmospheric pressure ... more expensive and cannot achieve as low a steam turbine exhaust pressure as a water-cooled surface condenser ...
Chernobyl - Accident - Steam Turbine Tests
... risk, it had been theorised that rotational energy from the steam turbine (as it wound down under residual steam pressure) could be used to generate the required ... Analysis indicated that this residual momentum and steam pressure might be sufficient to run the coolant pumps for 45 seconds, bridging the gap between an external power failure and ... carried out in 1982 showed that the excitation voltage of the turbine-generator was insufficient it did not maintain the desired magnetic field after the turbine trip ...

Famous quotes containing the word steam:

    Time has an undertaking establishment on every block and drives his coffin nails faster than the steam riveters rivet or the stenographers type or the tickers tick out fours and eights and dollar signs and ciphers.
    John Dos Passos (1896–1970)