![]() 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.50: Hero's Engine ( aeolipile) - Apparently, Hero's steam engine was taken to be no more than a toy, and thus its full potential not realized for centuries.6.2 Disadvantages of gas turbine engines.6 Advantages and disadvantages of gas turbine engines.Gas turbines are used to power aircraft, trains, ships, electrical generators, or even tanks. The purpose of the gas turbine determines the design so that the most desirable energy form is maximized. The energy that is not used for shaft work comes out in the exhaust gases, so these have either a high temperature or a high velocity. The turbine shaft work is used to drive the compressor and other devices such as an electric generator that may be coupled to the shaft. This high-temperature high-pressure gas enters a turbine, where it expands down to the exhaust pressure, producing a shaft worin the process. Energy is then added by spraying fuel into the air and igniting it so the combustion generates a high-temperature flow. Fresh atmospheric air flows through a compressor that brings it to higher pressure. The basic operation of the gas turbine is similar to that of the steam power plant except that air is used instead of water. It has an upstream rotating compressor coupled to a downstream turbine, and a combustion chamber in-between. For turbines in general, see Turbine.Įxamples of gas turbine configurations: (1) turbojet, (2) turboprop, (3) turboshaft (electric generator), (4) high-bypass turbofan, (5) low-bypass afterburning turbofan.Ī gas turbine, also called a combustion turbine, is a type of internal combustion engine. For turbines in electricity, see Wind turbine.
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