ANALYSIS OF NITRIC OXIDE FORMATION IN SPARK IGNITION ENGINE WITH HEAT TRANSFER AND EFFECT OF IGNITION POINT

The formation of nitric oxide in the combustion chamber of a spark ignition engine is formulated by developing a simple model. The state of the gas in the chamber and its thermal properties are estimated during a complete cycle. A simple heat transfer relation is used to estimate the heat loss from the gas to the chamber walls. The effect of the position of the ignition source relative to the exhaust port is also taken into account, and the predicted nitric oxide concentrations are compared with experimental results from a single-cylinder variable compression ratio IFP engine. It is found that the nitric oxide concentration predicted by the model agrees well over most of the operating range with the experimentally measured nitric oxide concentrations in the exhaust gas.

  • Corporate Authors:

    Society of Automotive Engineers

    485 Lexington Avenue
    New York, NY  United States  10017
  • Authors:
    • LUCAS, G G
    • Varde, K
  • Publication Date: 1974-2

Media Info

  • Pagination: 14 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00264106
  • Record Type: Publication
  • Report/Paper Numbers: SAE Paper No. 740189
  • Files: TRIS
  • Created Date: Jan 9 1975 12:00AM