Investigation of Cyclic Variations of IMEP Under Idling Operation in Spark Ignition Engines

  • Han, Sung-Bin (Department of Mechanical Engineering, Induk Institute of Technology)
  • 발행 : 2001.01.01

초록

Cyclic variability limits the range of operating conditions of spark ignition engines, especially under lean and highly diluted operation conditions. The cyclic combustion variations can be characterized by pressure parameters, combustion related parameters, and flame-front related parameters. The coefficient of variation (COV) in indicated mean effective pressure (IMEP) defines the cyclic variability in indicated work per cycle.

키워드

참고문헌

  1. 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
  2. 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
  3. Cheung, H. M., 1993, 'A Practical Burn Rate Analysis for Use in Engine Development and Design,' MIT Thesis
  4. Han, S. B., and Chung, Y J., 1998, 'A Study on the Effect of Operating Conditions for the Stability at Idle,' KSME International Journal, Vol. 12, No. 4, pp. 694-700
  5. Hinze, P. C., 1993, 'A Study of Fuel Effects on Early Flame;Development in a Spark Ignition Engine,' MIT Thesis
  6. Hinze, P. C., 1997, 'Cycle-to-Cycle Combustion Variations in a Spack-Ignition Engine Operating at Idle,' MIT Ph. D. Thesis
  7. Hoard, J. and Rehagen, L., 1997, 'Relating Subjective Idle Quality to Engine Combustion,' SAE Paper 970035
  8. 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
  9. 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
  10. Ozdor, N., Dulger, M. and Sher, E.,1994, 'Cyclic Variability in Spark Ignition Engines A Literature Survey,' SAE Paper 940987
  11. 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
  12. 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
  13. Shen, 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
  14. 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