Venturi nozzle effects on fuel drop size and nitrogen oxide emissions
Susan Margaret Johnson, United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch, Lewis Research Center
National Aeronautics and Space Administration, Scientific and Technical Information Branch, 1982 - Technology & Engineering - 14 pages
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Aeronautics and Space air swirler ambient temperature 293 atmospheric pressure calculated centimeters cold-flow combustion computer memory conducted to determine correlated detector plate Distribution Analyzer droplet number density droplet Sauter mean Droplet Size Distribution emission index N0xEI empirical relation Equation equivalence ratio experiment was conducted Figure 11 improved atomization Injector spray injector-swirler pair installed laser laser beam Lewis Research Center liquid pressure differential liquid-air ratios Malvern instrument Malvern Particle mass flow rate mean drop MPa Figure N0x emission index N0xEI data NASA NITROGEN OXIDE output oxides of nitrogen Particle and Droplet percent by weight Performing Organization plot purge air receiving lens reduced D32 relative air velocity reported in reference Rosin-Rammler Sauter mean diameter shown in figure simplex injector simplex pressure-atomizing injector Space Administration spray angle surface tension swirling air swirling airflow Test Facility total-pressure drop values of D32 venturi throat Water differential pressure water droplet water pressure differential water spray