INFLUENCE OF AERODYNAMIC PHENOMENA ON POLLUTANT FORMATION IN COMBUSTION. VOLUME I. EXPERIMENTAL RESULTS

The report gives results of the measurement of average concentration levels of NO, NO2, CO, and unburned hydrocarbons (THC) at the exhaust of an axisymmetric combustor over a significant range of operating conditions. In addition, it gives detailed species concentration, temperature, and velocity maps throughout the combustor for seven representative operating conditions. In the combustor, natural gas, a synthesized CH4/CO/H2 fuel, or vaporized propane is issued through a central duct to mix and burn with an annular air stream in a 1.8 m long cylindrical duct. In a few tests, liquid propane was the fuel. Water-cooled probes were used to remove samples from the flow for on-line concentration analysis and to measure temperature, velocity, and flow direction. Elevated pressure and introduction of swirl, to the extent considered in the present experiments, create 'unmixedness' in the combustor flow field which in turn results in enhanced NO formation and consumption of hydrocarbons. Aerodynamic flame stabilization produces strong stirring which results in relatively low NO formation and hydrocarbon consumption rates.

  • Corporate Authors:

    United Technologies Research Center

    400 Main Street
    East Hartford, CT  USA  06118

    National Environmental Research Center

    Control Systems Laboratory
    Res Triangle Park, NC  USA  27709
  • Authors:
    • Bowman, C T
    • Cohen, L S
  • Publication Date: 1975-7

Media Info

  • Pagination: 159 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00093822
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: Final Rpt., EPA/650/2-75/061-a
  • Contract Numbers: EPA-68-2-1092
  • Files: TRIS
  • Created Date: Feb 4 1976 12:00AM