Reduced coking of fuel nozzles

Details Reduced coking of fuel nozzles Reduced coking of fuel nozzles

1986-02-14

1989-01-17

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Processes

Including mixing or combining with air, gas or steam

239105, 239290, 239300, 239400, 239406, F23D 1100

Patent

active

047983302

ABSTRACT:
Coking of the hot external face of fuel nozzles operating in the combustor of a gas turbine engine is reduced by controlling air discharging from the nozzle face in a manner to provide a recirculation zone spaced away from the nozzle face a distance effective to substantially reduce coking and yet maintain a stable flame front in the combustor.

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patent: 4139157 (1979-02-01), Simmons
patent: 4362022 (1982-12-01), Faucher et al.
patent: 4595143 (1986-06-01), Simmons et al.
Beer et al., "Combustion Aerodynamics", Robert E. Krieger Publishing Co., 1972, pp. 100-147 and 196-211.
Gupta et al., "Swirl Flows", Abacus Press, 1984, pp. 119-163.
Shakespeare et al., "Pressure Drop in a Confined Vortex With High Flow Rate", date unknown, pp. 25-33.

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