Combustion within the channels of a wave rotor is examined as a means of obtaining pressure gain during heat addition in a gas turbine engine. Three modes of combustion are assessed: premixed autoignition (detonation), premixed deflagration, and non-premixed autoignition. The last two will require strong turbulence for completion of combustion in a reasonable time in the wave rotor. The autoignition modes will require inlet temperatures in excess of 800 K for reliable ignition with most hydrocarbon fuels. Examples of combustion mode selection are presented for two engine applications.
Issue Section:
Gas Turbines: Combustion & Fuels
Topics:
Combustion,
Rotors,
Waves,
Explosions,
Engines,
Fuels,
Gas turbines,
Heat,
Ignition,
Pressure,
Temperature,
Turbulence
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Copyright © 1999
by The American Society of Mechanical Engineers
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