EFFECT OF DEGREE OF FUEL VAPORIZATION UPON EMISSIONS FOR A PREMIXED PREVAPORIZED COMBUSTION SYSTEM
An experimental and analytical study of the combustion of partially vaporized fuel air mixtures was performed to assess the impact of the degree of fuel vaporization upon emissions for a premixing-prevaporizing flametube combustor. Data collected show near linear increases in nitrogen oxide emissions with decreasing vaporization at equivalence ratios of 0.6. For equivalence ratio of 0.72, the degree of vaporization had very little impact on nitrogen oxide emissions. A simple mechanism which accounts for the combustion of liquid droplets in partially vaporized mixtures was found to agree with the measured results with fair accuracy with respect to both trends and magnitudes.
- Presented at the 15th Joint Propulsion Conference Las Vegas, 18-20 Jan 1979. Cosponsored by AIAA, SAEW and ASME.
Department of the NavyThe Pentagon
Washington, DC United States 20350
- Cooper, L P
- Publication Date: 1979
- Pagination: 17 p.
- TRT Terms: Aircraft fuels; Combustion; Combustion chambers; Exhaust gases; Flames; Fuel air mixtures; Gas turbines; Nitric oxide; Nitrogen oxides; Turbine engines; Vapors; Volatilization
- Uncontrolled Terms: Air fuel ratio
- Old TRIS Terms: Drops liquids; Fuel-air ratio; Gas mixtures; Premixed flames; Vaporizing
- Subject Areas: Aviation; Vehicles and Equipment;
- Accession Number: 00198859
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: NASA-TM-79154 Conf Paper, E-010
- Files: TRIS
- Created Date: Oct 17 1980 12:00AM