Journal of Mechanical Science and Technology

The Korean Society of Mechanical Engineers (대한기계학회)
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Cycle-to-Cycle Variations Under Cylinder- Pressure- Based Combustion Analysis in Spark Ignition Engines

  • Han, Sung-Bin (Department of Mechanical Engineering, Induk Institute of Technology)
  • Published : 2000.10.01
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Abstract

Combustion analysis based on cylinder-pressure provides a mechanism through which a combustion researcher can understand the combustion process. The objective of this paper was to identify the most significant sources of cycle-to-cycle combustion variability in a spark ignition engine at idle. To analyse the cyclic variation in a test engine, the burn parameters are determined on a cycle-to-cycle basis through the analysis of the engine pressure data. The burn rate analysis program was used here and the burn parameters were used to determine the variations in the input parameter-i. e., fuel, air, and residual mass. In this study, we investigated the relationship of indicated mean effective pressure (IMEP), coefficient of variation (COV) of IMEP, burn angles, and lowest normalized value (LNV) in a spark ignition engine in a view of cyclic variations.

Keywords

References

  1. Brehob, D. D. and Newman, C. E., 1992, Monte Carlo Simulation of Cycle by Cycle Variability,' SAE Paper 922165
  2. Brown, A. G., Stone, C. R. and Beckwith P., 1996, 'Cycle-by-Cycle Variation in Spark Ignition Engine Combustion - Part I : Flame Speed and Combustion Measurements and a Simplified Turbulent Combustion Model,' SAE Paper 960612
  3. Brunt, M. F. J., 1996, 'Evaluation of IMEP Routines and Analysis Errors,' SAE Paper 60609
  4. Cheung, H. M. and Heywood, J. B., 1993, Evaluation of a One-Zone Burn-Rate Analysis Procedure Using Production SI Engine Pressure Data,' SAE paper 932749
  5. Cheung, H. M., 1993, 'A Practical Burn Rate Analysis for Use in Engine Development and Design,' MIT Thesis
  6. Gatowski, J. A., Heywood, J. B., and DeLaplace, C., 1984, 'Flame Photographs in a Spark-ignition Engine,' Combustion and Flame, Vol. 6, pp. 71-81 https://doi.org/10.1016/0010-2180(84)90006-3
  7. Han, S. B., and Chung, Y. J., 1998, 'A Study on the Effect of Sperating Conditions for the Stability at Idle,' KSME International Journal, Vol. 12, No. 4, pp. 694-700
  8. Heywood, J. B., 1988, Internal Combustion Engine Fundamentals, McGraw - Hill International Editions
  9. Hinze, P. C., 1993, 'A Study of Fuel Effects on Early Flame Development in a Spark Ignition Engine,' MIT Thesis
  10. Hinze, P. C., 1997, 'Cycle-to-Cycle Combustion Variations in a Spark-Ignition Engine Operating at Idle,' MIT Ph. D. Thesis
  11. Ho, C. M., and Santavicca, D. A., 1987, 'Turbulence Effects on Early Flame Kernel Growth,' SAE Paper 872110
  12. Hoard, J. and Rehagen, L., 1997, 'Relating Subjective Idle Quality to Engine Combustion,' SAE Paper 970035
  13. Kiyoshi, I., Sasaki, T., Urata, Y.,, Yoshida, K., and Ohno T., 1997, 'Investigation of Cyclic Variation of IMEP under Lean Burn Operation in Spark-Ignition Engine, SAE Paper 972830
  14. Keck J. C., Heywood J. B. and Noske G., 1987, 'Early Flame Development and Burning Rates in Spark Ignition Engine and Their Cyclic Variability,' SAE Paper 870164
  15. Kerstein, A. R. and Witze, P. O., 1990, 'Flame-Kernel Model for Analysis of Fiber-Optic Instrumented Spark Plug Data,' SAE Paper 900022
  16. Meyer, R., Kubesh, J. T. and Shahed, S. M., 1993, 'Simultaneous Application of Optic Spark Plug Probe and Head Gasket Ionization Probe to a Production Engine,' SAE Paper 930464
  17. Ozdor, N., Dulger, M. and Sher, E., 1994, 'Cyclic Variability in Spark Ignition Engines a Literature Survey,' SAE Paper 940987
  18. Pischinger S. and Heywood, J. B., 1990, 'How Heat Losses to Spark Plug Electrodes Affect Flame Kernel Development in an SI Engine,' SAE Paper 900021
  19. Randolph, A. L., 1994, 'Cylinder-Pressure-Based Combustion Analysis in Race Engines,' SAE Paper 942487
  20. Robinet, C., Andrzejewski, J., and Higelin, P., 1997, 'Cycle-to-Cycle Variation Study of an SI Engine Fired by Spark Plug and a Non Conventional Device,' SAE Paper 972986
  21. She, H., Hinze, P. C. and Heywood, J. B., 1994, 'A Model for Flame Initiation and Early Development in SI Engine and its Application to Cycle-to-Cycle Variations,' SAE Paper 942049
  22. Shen, H., Hinze, P. C. and Heywood, J. B., 1996, 'A Study of Cycle-to-Cycle Variations in SI Engines Using a Modified Quasi-Dimensional Model,' SAE Paper 961187
  23. Sztenderowicz, M. L. and Heywood, J. B., 1990, 'Cycle-to-Cycle IMEP Fluctuations in a Stoichiometrically-Fueled S. I. Engine at Low Speed and Load,' SAE Paper 902143