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.
Warrendale, PA USA 15096
- Hires, S D
- TABACZYNSKI, R J
- Novak, J M
- Publication Date: 1978-2
- Pagination: 16 p.
- TRT Terms: Combustion; Forecasting; Ignition; Simulation; Spark ignition engines; Traffic delays
- Subject Areas: Highways; Vehicles and Equipment;
- Accession Number: 00193322
- Record Type: Publication
- Report/Paper Numbers: SAE 780232
- Files: TRIS
- Created Date: Jun 13 1979 12:00AM