An afterburner or reheat u k is an additional combustion component used on some jet engines mostly those on military supersonic aircraft its purpose is to increase thrust usually for supersonic flight takeoff and combat afterburning injects additional fuel into a combustor in the jet pipe behind i e after the turbine reheating the exhaust gas. Schematic diagram of engine with shortened afterburner in cell 6 1954.
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This heats and expands the exhaust gases further and can increase the thrust of a jet engine by 50 or more.
Jet engine diagram afterburner. Jet engine double spool afterburner control fuel flow rate speed flight regime temperature. For a high thrust level there are necessary high compressors pressure ratios. A modern turbine engine is extremely efficient and there is still a lot of oxygen available in the exhaust stream.
1 inlet 2 air intake compressor 3 compressor combustion chamber 4 combustion chamber turbine 5 turbine afterburner 6 afterburner nozzle. Jet engines expel their hot combustion gas into the atmosphere through a tubular nozzle which. Distorted screech liner installed on a short afteburner for a tg 190 engine 1955.
The idea behind an afterburner is to inject fuel directly into the exhaust stream and burn it using this remaining oxygen. Introduction modern aircraft engines especially the combat aircraft engines must assure high level of thrust low time response and maneuverability. Jet engine full power run afterburner hx monster homemade jet engine jet engine believe it or not almost anyone can build their own jet engine using materi.
Brayton joule cycle diagram continuous line for ideal cycle dotted line for real cycle of a jet aircraft engine with afterburner with engine stations. Exit of a short afterburner on a ge tg 190 emerging from cell 6. Shock diamonds also known as mach diamonds or thrust diamonds are a formation of standing wave patterns that appear in the supersonic exhaust plume of an aerospace propulsion system such as a supersonic jet engine rocket ramjet or scramjet when it is operated in an atmosphere the diamonds are actually a complex flow field made visible by abrupt changes in local density and pressure as.
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