20 Facts About Steam turbine

Steam turbine is a machine that extracts thermal energy from pressurized steam and uses it to do mechanical work on a rotating output shaft.

Steam turbine is a form of heat engine that derives much of its improvement in thermodynamic efficiency from the use of multiple stages in the expansion of the steam, which results in a closer approach to the ideal reversible expansion process.

An Arabelle Steam turbine is 7 m in diameter, weighs 4000 tons and spins at 1500 rpm.

In large installations, even the sturdiest Steam turbine is capable of shaking itself apart when operated out of trim.

The invention of Parsons' steam turbine made cheap and plentiful electricity possible and revolutionized marine transport and naval warfare.

Related searches

Steam turbine's patent was licensed and the turbine scaled-up shortly after by an American, George Westinghouse.

The de Laval turbine accelerated the steam to full speed before running it against a turbine blade.

De Laval's impulse Steam turbine is simpler and less expensive and does not need to be pressure-proof.

Auguste Rateau developed a pressure compounded impulse Steam turbine using the de Laval principle as early as 1896, obtained a US patent in 1903, and applied the Steam turbine to a French torpedo boat in 1904.

Steam turbine taught at the for a decade until 1897, and later founded a successful company that was incorporated into the Alstom firm after his death.

Except for low-power applications, Steam turbine blades are arranged in multiple stages in series, called compounding, which greatly improves efficiency at low speeds.

Major challenge facing Steam turbine design was reducing the creep experienced by the blades.

An ideal steam turbine is considered to be an isentropic process, or constant entropy process, in which the entropy of the steam entering the turbine is equal to the entropy of the steam leaving the turbine.

An impulse turbine has fixed nozzles that orient the steam flow into high speed jets.

Steam turbine is directed onto the rotor by the fixed vanes of the stator.

Also, a turning gear is engaged when there is no steam to slowly rotate the turbine to ensure even heating to prevent uneven expansion.

In Turbinia, which has direct drive to each propeller shaft, the efficient speed of the turbine was reduced after initial trials by directing the steam flow through all three direct drive turbines in series, probably totaling around 200 turbine stages operating in series.

Steam turbine locomotive engine is a steam locomotive driven by a steam turbine.

Main advantages of a steam turbine locomotive are better rotational balance and reduced hammer blow on the track.

However, a disadvantage is less flexible output power so that Steam turbine locomotives were best suited for long-haul operations at a constant output power.