ULTRA-LEAN COMBUSTION AT HIGH INLET TEMPERATURES

Combustion at inlet-air temperatures of 1100 to 1250 exp 0 K was studied for application to advanced automotive gas turbine engines. Combustion was initiated by the hot environment, and therefore no external ignition source was used. Combustion was stabilized without a flameholder. The tests were performed in a 12-cm-diameter test section at a pressure of 2.5 x 10 exp 5 Pa, with reference velocities of 32 to 60 m/s and at maximum combustion temperatures of 1350 to 1850 exp 0 K. Number 2 diesel fuel was injected by means of a multiple-source fuel injector. Unburned hydrocarbons emissions were negligible for all test conditions. Nitrogen oxides emissions were less than 1.9 g NO sub 2 /kg fuel for combustion temperatures below 1680 exp 0 K. Carbon monoxide emissions were less than 16 g CO/kg fuel for combustion temperatures greater than 1600 exp 0 K, inlet-air temperatures higher than 1150 exp 0 K, and residence times greater than 4.3 ms. (ERA citation 06:009387)

• Supplemental Notes:
  • ASME gas turbine conference, Houston, TX, USA, 9 Mar 1981.
• Corporate Authors:

  Department of the Navy

  The Pentagon
  Washington, DC  United States  20350

  Department of Energy

  1000 Independence Avenue, SW
  Washington, DC  United States  20585
• Authors:
  • Anderson, D N
• Publication Date: 1981

Media Info

• Pagination: 20 p.

Subject/Index Terms

• TRT Terms: Air quality management; Automobiles; Carbon monoxide; Combustion; Diesel engines; Diesel fuels; Exhaust gases; Fuel air mixtures; Fuel injection; Gas turbines; High temperature; Hydrocarbons; Lean fuel mixtures; Nitric oxide; Nitrogen oxides; Temperature; Turbine engines
• Old TRIS Terms: Air pollution abatement; Combustion products; Fuel-air ratio; Lean fuel engine; Temperature dependence
• Subject Areas: Highways; Vehicles and Equipment; I91: Vehicle Design and Safety;

Filing Info

• Accession Number: 00336768
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: NASA-TM-81640, CONF-810309-5
• Contract Numbers: AT01-76CS51011
• Files: TRIS
• Created Date: Jun 12 1981 12:00AM