NITRIC OXIDE MEASUREMENT STUDY: COMPARISON OF OPTICAL AND PROBE METHODS - VOLUME III

Nitric oxide (NO) was measured in the exhaust of three different combustion systems by in situ ultraviolet absorption and by chemiluminescent analysis after gas sampling with several probe designs. The three combustion systems were: (1) a flat flame burner fueled with CH4/N2/O2; (2) a research swirl burner fueled with C3H8/air; and, (3) a modified FT12 combustor operated on Jet A/air. Each combustion system was run at several different conditions so that probe and optical measurements could be obtained over a wide range of exhaust environments encompassing products from lean, stoichiometric, and rich flames, laminar to turbulent flows, and temperatures at centerline from 600 K to 1800 K. The results obtained with the metallic, water-cooled probes of different designs (all expansion-type) agreed with the optical results to within 25 percent. Some small losses of NO (10-15 percent) were observed in a lean methane flame at 1800 K with an uncooled stainless steel probe, but under fuel-rich conditions up to 80 percent NO destruction was observed. Experimental facilities are described, previous results are discussed, and a summary of the major findings of this study is given.

• Supplemental Notes:
  • See also Volume 2, PB81-195539. Also available in set of 3 reports PC E14, PB81-195513.
• Corporate Authors:

  United Technologies Research Center

  400 Main Street
  East Hartford, CT  United States  06118

  Federal Aviation Administration

  800 Independence Avenue, SW
  Washington, DC  United States  20591

  Environmental Protection Agency

  Dallas, TX  United States  75202
• Authors:
  • Zabielski, M F
  • DODGE, L G
  • Colket III, M B
  • Seery, D J
• Publication Date: 1980-5

Media Info

• Pagination: 98 p.

Subject/Index Terms

• TRT Terms: Air pollution; Aircraft; Alternatives analysis; Burners; Chemiluminescence; Concentration (Chemistry); Design; Exhaust gases; Gas analysis; Nitric oxide; Nitrogen oxides; Optical instruments; Optical measurement; Probes (Measuring devices); Sampling; Ultraviolet spectroscopy
• Uncontrolled Terms: Design criteria
• Old TRIS Terms: Probes
• Subject Areas: Aviation; Design; Vehicles and Equipment;

Filing Info

• Accession Number: 00337958
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: R80-994150-3, FAA-EE-80-30, EPA-460/3-8
• Contract Numbers: DOT-FA77WA-4081
• Files: NTIS, USDOT
• Created Date: Aug 15 2003 12:00AM