turbine expansion ratio

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• Turbine map — Each turbine in a gas turbine engine has an operating map. Complete maps are either based on turbine rig test results or are predicted by a special computer program. Alternatively, the map of a similar turbine can be suitably scaled. Description… …   Wikipedia

• Turbine — A turbine is a rotary engine that extracts energy from a fluid flow. Claude Burdin (1788 1873) coined the term from the Latin turbo , or vortex, during an 1828 engineering competition. Benoit Fourneyron (1802 1867), a student of Claude Burdin,… …   Wikipedia

• Turbine de tesla — La turbine de Tesla est un type de turbine sans pales breveté par Nikola Tesla en 1913. Elle utilise l effet de couche limite, et pas l impact d un fluide contre des pales comme c est le cas dans une turbine conventionnelle. La turbine de Tesla… …   Wikipédia en Français

• turbine — /terr bin, buyn/, n. any of various machines having a rotor, usually with vanes or blades, driven by the pressure, momentum, or reactive thrust of a moving fluid, as steam, water, hot gases, or air, either occurring in the form of free jets or as …   Universalium

• Turbine de Tesla — La turbine de Tesla est un type de turbine sans pales breveté par Nikola Tesla en 1913. Elle utilise l effet de couche limite et non l impact d un fluide contre des pales comme c est le cas dans une turbine conventionnelle. La turbine de Tesla… …   Wikipédia en Français

• ratio of expansion — the ratio of the volume of steam in an engine cylinder or turbine when the piston is at the end of the stroke to the volume at cut off …   Useful english dictionary

• Tesla turbine — The Tesla turbine is a bladeless centrifugal flow turbine expander patented by Nikola Tesla in 1913. It is referred to as a bladeless turbine because it uses the boundary layer effect and not a fluid impinging upon the blades as in a conventional …   Wikipedia

• gas-turbine engine — Introduction       any internal combustion engine employing a gas as the working fluid used to turn a turbine. The term also is conventionally used to describe a complete internal combustion engine consisting of at least a compressor, a… …   Universalium

• Steam turbine — A rotor of a modern steam turbine, used in a power plant A steam turbine is a mechanical device that extracts thermal energy from pressurized steam, and converts it into rotary motion. Its modern manifestation was invented by Sir Charles Parsons… …   Wikipedia

• Gas turbine — Microturbine redirects here. For turbines in electricity, see Small wind turbine. For turbines driven by the flow of gas, see Turbine. A typical axial flow gas turbine turbojet, the J85, sectioned for display. Flow is left to right, multistage… …   Wikipedia

• Overall pressure ratio — In aeronautical engineering, the term overall pressure ratio is defined as the ratio of the stagnation pressure as measured at the front and rear of the compressor of a gas turbine engine. Generally speaking, a higher overall pressure ratio… …   Wikipedia