Idle Efficiency and Pollution Results for Two-row Swirl-can Combustors Having 72 Modules |
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30:1 pressure-ratio engine 32 swirl-cans 36-36 module combustor 40-32 module combustor 40-32 Trapezoidal 72-swirl-can-module combustors annular combustor test Blockage Swirler design bustion efficiency Carbon dioxide Carbon monoxide emission Carburetor circumferential fuel scheduling combustor test facility design flow area EICO emission index values engine idle conditions Figure flame stabilizer geometry flowmeter fuel distribution Fuel flow fuel-air ratio full annular combustor function of fuel-air gas sample hydrocarbon emission index hydrocarbons and 69 hydrocarbons and carbon idle conditions typical IDLE EFFICIENCY Idle pollutants Indicating meter Indicating inlet total pressure inlet-air temperature inner row maximum combustion efficiency meter Indicating meter meters per second monoxide emission index newtons per square nonburning zone outer row oxides of nitrogen percent pollutants as function radial and circumferential radial fuel scheduling ratio for fuel reference velocity row of swirl-can scheduling of fuel sectors Star swirl-can modules Swirler design flow swirler open area Trapezoidal 1.84 turbofan two-row swirl-can combustor