SINGLE CYLINDER SPARK IGNITION ENGINE STUDY OF NO AND NO SUB 2 EMISSIONS FOR METHANOL, ISO-OCTANE AND NITROGEN DOPED METHANOL WITH EMPHASIS ON MEASUREMENT TECHNIQUE

NO and NO sub 2 emissions from a single cylinder CFR engine were measured as a function of fuel air equivalence ratio for the spark ignited combustion of methanol, iso-octane and nitrogen doped methanol. In all cases, no NO sub 2 was detected for fuel-rich or stoichiometric combustion, while significant amounts of NO sub 2 were found for fuel-lean combustion. The exhaust system and exhaust sampling system were throughly tested for NO and NO sub 2 conversions, NO sub 2 to NO conversions and NO/sub x/ losses. These tests showed that all conversions or losses were of relatively minor importance, and therefore that the NO and NO sub 2 concentrations reported were not artifacts of either the exhaust system or the exhaust sampling system. Several devices for desicating the exhaust sample were tested to determine their effects on the NO/sub x/ concentration of the sample. A Perma Pure dryer was found to be suitable for this purpose, while other devices examined removed up to 100 percent of the NO sub 2 . For the fuel-nitrogen case, significant increases in the NO/sub x/ emissions were measured at fuel-lean equivalence ratios. No increase in the NO/sub x/ emissions were detected at rich conditions. (ERA citation 03:024618)

  • Supplemental Notes:
    • Combustion Institute Eastern State meeting, Hartford, CT, USA, 10 Nov 1977.
  • Corporate Authors:

    Brookhaven National Laboratory

    Associated Universities, Incorporated
    Upton, NY  United States  11973

    Department of Energy

    1000 Independence Avenue, SW
    Washington, DC  United States  20585
  • Authors:
    • Brateman, J H
    • Klemm, R B
  • Publication Date: 1977

Media Info

  • Pagination: 26 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00180615
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: CONF-771149-3
  • Contract Numbers: EY-76-C-02-0016
  • Files: TRIS
  • Created Date: Aug 19 1978 12:00AM