Air Assist Apparatus for Gas Turbomachine Augmentor Sprayring.
DEPARTMENT OF THE AIR FORCE WASHINGTON DC
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This apparatus includes an aerodynamically configurated air manifold which surrounds the fuel-carrying and emitting spraying in the afterburner section of a gas turbine power plant, with a plurality of orifices in the air manifold located such that they align with, and face in the same direction as, the respective plurality of orifices in the spraying and, a conduit which carries air that is bled from the compressor section to the air manifold, with the air flow in the conduit controlled by a conduit valve, so that the bled air can be selectively introduced into the air manifold. Combustion efficiency is increased, and rumble instability is decreased, because better fuel atomization and vaporization is allowed by the greater and better intermixture of the fuel from the spraying orifices, and the air from the air manifold orifices, by the air flow impinging upon, surrounding, and intermixing with the exiting fuel flow. Author
- Electric Power Production and Distribution