Effect of fuel-air-ratio nonuniformity on emissions of nitrogen oxides
Valerie J. Lyons, Lewis Research Center, United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch
National Aeronautics and Space Administration, Scientific and Technical Information Branch, 1981 - Technology & Engineering - 11 pages
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0.3 MPa inlet Aeronautics and Space analytical and experimental average equivalence ratios average NOx emissions average NOx values carbon monoxide centimeters cm Figure combustion system combustor CURVE FIT WSR DATA CURVE FIT DATA CURVE WSR degree of nonuniformity DISTANCE ACROSS PIPE downstream Effect of Fuel-Air-Ratio emission index Emissions of Nitrogen equivalence ratios less experimental data experimental NOx values experimental results experimental values figure 13 flametube rig fuel injector fuel-air-ratio nonuniformity fuel-air-ratio profile nonuniformity g NOx/kg g NOx/kg fuel Gaussian pi profile inlet air conditions inlet air temperatures Jet A fuel lean less than 0.7 Lewis Research Center MPa inlet air NASA National Aeronautics nonuniform fuel-air-ratio profiles NONUNIFORMITY PARAMETER NOx data NOx levels NOx/kg fuel perforated-plate flameholder PREDICTION FROM GAUSSIAN prevaporized combustion produced ratio profiles ratios near stoichiometric reference velocity rig pressure shown in figure Space Administration temperatures of 600 theoretical NOx theoretical predictions uniform profile velocity of 25 water-cooled