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turbine

A rotary engine that converts the energy of a moving stream of water, steam, or gas into mechanical energy The basic element in a turbine is a wheel or rotor with paddles, propellers, blades, or buckets arranged on its circumference in such a fashion that the moving fluid exerts a tangential force that turns the wheel and imparts energy to it This mechanical energy is then transferred through a drive shaft to operate a machine, compressor, electric generator, or propeller Turbines are classified as hydraulic, or water, turbines, steam turbines, or gas turbines Today turbine-powered generators produce most of the world's electrical energy Windmills that generate electricity are known as wind turbines

also called turbine wheel

Both the Parsons and Curtis turbines are suitable for driving dynamos and steamships directly

The flare of the nozzle causes expansion of the steam, and hence changes its pressure energy into kinetic energy

The steam is constrained to pass successively through alternate rows of fixed and moving blades, being expanded down to a condenser pressure of about 1 lb

The Curtis turbine is somewhat simpler than the Parsons, and consists of elements each of which has at least two rows of moving blades and one row of stationary

A water wheel, commonly horizontal, variously constructed, but usually having a series of curved floats or buckets, against which the water acts by its impulse or reaction in flowing either outward from a central chamber, inward from an external casing, or from above downward, etc

There are practically only two distinct kinds, and they are typified in the de Laval and the Parsons and Curtis turbines

The Parsons turbine is an impulse-and-reaction turbine, usually of the axial type

A rotary device that usually powers an electrical generator The turbine may be turned by water, wind or high pressure steam

A device which produces power by diverting water through blades of a rotating wheel which turns a shaft to drive a generator See also specific types of turbines

The de Laval turbine is an impulse turbine, in which steam impinges upon revolving blades from a flared nozzle

A machine that has propeller-like blades which can be moved by flowing water or gas (including steam) thereby rotating a component in a generator to produce electricity

any of various rotary machines that use the kinetic energy of a continuous stream of fluid or gas to turn a shaft

A device used in the generation of electricity It has a shaft with blades at one end and electromagnets at the other Water or steam or some other energy source pushes the blades, which make the shaft and the magnets spin very fast The magnet end is surrounded by heavy coils of copper wire, and the spinning magnets cause electrons in the wire to begin to move, creating electricity

A machine for generating rotary mechanical shaft power from the energy of a stream of fluid (such as water, steam, or hot gas) Turbines convert the kinetic energy of fluids to mechanical energy through the principles of impulse and reaction

size is requisite for high efficiency, and the machine has therefore to be geared down to be of practical use

a machine that uses fluids to turn a wheel or cylinder to create energy, usually electricity

Part of an aircraft engine which converts the kinetic energy of moving air into rotational power

1 A machine consisting principally of one or more turbine wheels and a stator

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