Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
권호 표지

A Study on the Kernel Formation & Development for Lean Burn and EGR Engine

희박연소 및 EGR 엔진에서 초기 화염액 생성 및 성장에 관한 연구

  • Published : 1999.11.01
Download PDF
⟨ Previous Next ⟩

Abstract

This paper investigate the effects of the variations of engine operation condition in the flame kernel formation and developmnet . A model for calculating the initial kernel development in spark ignition engines is formualted. It considered input of electrical energy, combustion energy release and heat transfer to the spark plyg, cylinder head, and unburned mixture. The model also takes into accounts strain rate of initial kernel and residual gas fraction. The breakdown process and the subsequent electrical power input initially control the kernel growth while intermediate growth is mainly dominated by diffusion or conduction. Then, the flame propagates by the chemical energy and turbulent flame expansion. Flame kernel development also influenced by engine operating conditions, for example, EGR rate, air-fuel ration and intake manifold pressure.

Keywords

References

  1. 대한기계학회 논문집 B권 v.23 no.2 SI 기관에서 초기화염의 생성 및 성장에 대한 모델링 송정훈;선우명호
  2. Combustion and Flame v.83 Spark Ignition of Propane-Air Mixtures Near the Maximum Ignition Energy: Part Ⅱ, A Model Development Ko, Y.;Arpaci, V. B.;Anderson, R. W.
  3. SAE paper 922243, SAE Trans A Fundamental Model for Flame Kernel Formation in S.I. Engines Herweg, R.;Maly, R. R.
  4. SAE 952382, SAE Trans. Diluents and Lean Mixture Combustion Modeling for SI Engine with a Quasi-Dimensional Model Dai, W.;Davis, G. C.;Hall, M. J.;Mathews, R. D.
  5. SAE 960072, SAE Trans. Combustion Modeling in SI Engines with a Peninsula-Fractal Combustion Model Matthews, R. D.;Hall, M. J.;Dai, W.;Davis, G. C.
  6. Ph.D. thesis, M.I.T. Effects of Spark Plug Design Parameters on Ignition and Flame Development in an SI-Engine Pischinger, S.
  7. SAE paper 900021, SAE Trans How Heat Losses to the Spark Plug Electrodes Affect Flame Kernel Development in an SI-Engine Pischinger, S.;Heywood, J. B.
  8. SAE paper 942049, SAE Trans A Modeel for Flame Initiation and Early Development in SI Engine and and its Application to Cycle-to-Cycle Variation Shen, H.;Hinze, P. C.;Heywood, J. B.
  9. Combustion and flame v.69 Prediction of Spark Kernel Development in Constant Volume Combustion Lim, M. T.;Anderson, R. W.;Arpaci, V. S.
  10. Combustion and Flame v.59 A Theoretical Study of the lgnition of a Reactive Medium by Means of an Electrical Discharge Refael, S.;Sher, E.
  11. SAE paper 840030, SAE Trans The effect of Intake Valve Lift on Turbulence Intensity and Burn Rate in S. I. Engines - Model Versus Experiment Davis, C. G.;Tabaczynski, R.J.;Betaire, R. C.
  12. SAE 931025, SAE Trans. A Model for Predicting Residual Gas Fraction in Skark-lgnition Engines Fox, J. W.;Cheng, W. K.;Heywood, J. G.
  13. SAE paper 850047, ASE Trans Laminar Burning Speed Measurements of Indolene-Air-Diluent Mixture at High Pressure and Temperature Rhodes, D. B.;Keck, J. C.
  14. 한양대학교 대학원 석사졸업논문 고점화 에너지가 희박연소기관의 성능에 미치는 영향 송정훈
  15. 점화 에너지가 희박연소기관에 미치는 영향에 관한 연구 (Ⅰ) v.2 no.2 한만배;송정훈;선우명호