THE PREDICTION OF IGNITION DELAY AND COMBUSTION INTERVALS FOR A HOMOGENEOUS CHARGE, SPARK IGNITION ENGINE

Correlations for the ignition delay and combustion energy release intervals in a homogeneous charge, spark-ignited engine are developed. After incorporation within a simplified engine cycle simulation, predicted values of these two combustion parameters are compared to experimental engine data. Two empirical constants scale the correlations to a given engine. Predicted values for the ignition delay and burn intervals show good agreement with experimental results for wide variations in engine operating and design conditions (e.g., engine speed and load, spark timing, EGR, air-fuel ratio and compression ratio). In addition, the shapes of the predicted mass fraction burned curves agree well with published data.

  • Corporate Authors:

    Society of Automotive Engineers

    400 Commonwealth Drive
    Warrendale, PA  USA  15096
  • Authors:
    • Hires, S D
    • TABACZYNSKI, R J
    • Novak, J M
  • Publication Date: 1978-2

Media Info

  • Pagination: 16 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00193322
  • Record Type: Publication
  • Report/Paper Numbers: SAE 780232
  • Files: TRIS
  • Created Date: Jun 13 1979 12:00AM