The gasflow in most turbines employed in gas turbine engines remains subsonic throughout the expansion process.

In a transonic turbine the gasflow becomes supersonic as it exits the nozzle guide vanes, although the downstream velocities normally become subsonic.

This interest in mass-flow also led von Ohain to research magnetohydrodynamics ( MHD ) for power generation, noting that the hot gases from a coal-fired plant could be used to extract power from their speed when exiting the combustion chamber, remaining hot enough to then power a conventional steam turbine.

The turbine exhaust was piped through a set of 4 nozzles in the smokebox, providing an even draft for the fire and exiting through a unique quadruple stack.

To get rid of this, the air exiting the expansion turbine is passed through a water separator, which uses centrifugal force to throw the water particles into a coalescer bag ( not Airbus ) that absorbs the moisture ( this condensate can be injected into the outside air entering the secondary heat exchanger to improve its performance ).

In large power plants with steam-driven turbines, shell-and-tube surface condensers are used to condense the exhaust steam exiting the turbine into condensate water which is recycled back to be turned into steam in the steam generator.

With axial turbines, some efficiency advantage can be obtained if a downstream turbine rotates in the opposite direction to an upstream unit.

It has an upstream rotating compressor coupled to a downstream turbine, and a combustion chamber in-between.

Forced response is a concern in axial compressor and gas turbine design, where one set of aerofoils pass through the wakes of the aerofoils upstream.

" Water levels in the river fell as more water was extracted further upstream, and by the 1890s the waterwheels were assisted by a steam-driven turbine which the miller installed.

A jet engine afterburner is an extended exhaust section containing extra fuel injectors, and since the jet engine upstream ( i. e., before the turbine ) will use little of the oxygen it ingests, the afterburner is, at its simplest, a type of ramjet.

On most jetliners, air is supplied to the ECS by being " bled " from a compressor stage of each gas turbine engine, upstream of the combustor.

A rotor of a modern steam turbine, used in a power plant

A two-flow turbine rotor.

In a turbomolecular pump, a rapidly spinning turbine rotor ' hits ' gas molecules from the inlet of the pump towards the exhaust in order to create or maintain a vacuum.

A turbine is a turbomachine with at least one moving part called a rotor assembly, which is a shaft or drum with blades attached.

The pressure of the gas or fluid changes as it passes through the turbine rotor blades.

: turbine rotor peripheral velocity

Many turbine rotor blades have shrouding at the top, which interlocks with that of adjacent blades, to increase damping and thereby reduce blade flutter.

An experimental lidar is mounted on a wind turbine rotor to measure oncoming horizontal winds, and proactively adjust blades to protect components and increase power.

In a mechanical siren, sound is generated by a motor driving a shaft with a special turbine ( known as a rotor or chopper ) on one or both ends.

* 1500: The " Chimney Jack " was drawn by Leonardo da Vinci: Hot air from a fire rises through a single-stage axial turbine rotor mounted in the exhaust duct of the fireplace and turning the roasting spit by gear / chain connection.

Design reports from early 1952 outlined key features of a new gas turbine propelled engine and disc-shaped vehicle: an inner disc with central eye intake with an outer, counter-rotating disc, with rear-directed thrust nozzles, later refined to include controlling the aeroplane by thrust vectoring and stabilizing the vehicle by having the large engine rotor act as a gyroscope.

One wind turbine, an Enercon E66 / 1500 with 1. 5 MW generation capacity, 67 metres nacelle height and 66 metres rotor diameter, which was built in 1999, has an observation deck just below the nacelle.

File: Dampfturbine Laeufer01. jpg | A Siemens steam turbine rotor

The flowing fluid impinges on the turbine blades, imparting a force to the blade surface and setting the rotor in motion.

The Woltmann meter comprises a rotor with helical blades inserted axially in the flow, much like a ducted fan ; it can be considered a type of turbine flow meter.

* Rotor ( turbine ), the rotor of a turbine powered by fluid pressure

Planning permission to erect a wind turbine on Mill Plain (), 400m from the opera house, was requested for a tubular tower 44m high and a three bladed rotor with a diameter of 52m.

Power is energy per unit time, so the wind power incident on A ( e. g. equal to the rotor area of a wind turbine ) is:

Almost all large wind turbines have the same design — a horizontal axis wind turbine having an upwind rotor with three blades, attached to a nacelle on top of a tall tubular tower.

An airfoil ( in American English ) or aerofoil ( in British English ) is the shape of a wing or blade ( of a propeller, rotor or turbine ) or sail as seen in cross-section.

* airfoil or aerofoil ( British English ), shape of a wing or blade ( of a propeller, rotor or turbine ) or sail as seen in cross-section

A Blackburn-built Turmo turbine powering a compressor delivering the air to the rotor tips.

Two typical methods for converting solar energy into electricity are photo-voltaic cells that are organized into panels and concentrated solar power, which uses mirrors to concentrate sunlight to either heat a fluid that runs an electrical generator via a steam turbine or heat engine, or to simply cast onto photo-voltaic cells.

Pelton was watching a spinning water turbine when the key holding its wheel onto its shaft slipped, causing it to become misaligned.

Solar One's method of collecting energy was based on concentrating the sun's energy onto a common focal point to produce heat to run a steam turbine generator.

Afterburning is achieved by injecting additional fuel into the jet pipe downstream of ( i. e. after ) the turbine.

The afterburner then injects fuel downstream of the turbine and reheats the gas.

This is achieved by injecting additional fuel into the jet pipe downstream of ( i. e. after ) the turbine and combusting it.

The temperature of the Pack Outlet Air is controlled by the adjusting flow through the " Ram Air System " ( below ), and modulating a " Temperature Control Valve " ( TCV ) which bypasses a portion of the hot bleed air around the ACM and mixes it with the cold air downstream of the ACM turbine.

The damage to engines is a particular problem since temperatures inside a gas turbine are sufficiently high that volcanic ash is melted in the combustion chamber, and forms a glass coating on components further downstream of it, for example on turbine blades.