Effects of percentage of blockage and flameholder downstream counterbores on lean combustion limits of premixed, prevaporized propane-air mixture
María A. Bosque Fernández, United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch
National Aeronautics and Space Administration, Scientific and Technical Information Branch, 1983 - Science - 8 pages
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73 percent 85 percent blockage 9 meters A-A Approach mixture blockage and counterbore blockage from 63 blowout equivalence ratios caused the equivalence center hole combustion zone Counterbore diameter counterbore sizes counterbored flameholders decreased diameter thru hole different flameholder different percentages EFFECTS OF PERCENTAGE experimental faster mixing rates Flame Quenching flame tube combustor Flameholder blockage flameholder configurations flameholder geometry flameholder plates flameholders with counterboring flowmeters fuel flow fuel injector Fuel-Air Mixture Globe valve grams per second hole and four Improved stability increase in percentage Increases in mixture inlet air velocity inlet velocities Lean combustion limits lean stability limits Lewis Research Center limits with inlet measured blowout limits meters per second mixture velocity caused NASA National Aeronautics Nine flameholder percent blockage flameholder percentage of blockage percentages of flameholder Performing Organization premixed-prevaporized propane-air mixture propane smaller residence spark plug stabilize the flame temperature Thermocouple thru hole diameter Variations of measured velocities for different