International Journal of Automotive Technology

  • 제8권3호
  • /
  • Pages.269-274
  • /
  • 2007
  • /
  • 1229-9138(pISSN)
  • /
  • 1976-3832(eISSN)
한국자동차공학회 (The Korean Society of Automotive Engineers)
권호 표지

RADICAL IGNITION TECHNIQUE IN A CONSTANT VOLUME CHAMBER

  • Park, J.S. (Department of Mechanical Engineering, Dong-A University) ;
  • Ha, J.Y. (Department of Mechanical Engineering, Dong-A University) ;
  • Yeom, J.K. (Department of Mechanical Engineering, Dong-A University) ;
  • Lee, J.S. (Department of Automobile Engineering, Tong-Myong University) ;
  • Lee, C.J. (Department of Automobile Engineering, Tong-Myong University) ;
  • Chung, S.S. (Department of Mechanical Engineering, Dong-A University)
  • 발행 : 2007.06.30
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

A prior fundamental study was executed using a constant volume chamber (CVC) to improve the burning characteristics of lean pre-mixture by the injection of active radicals generated in the sub-chamber of the CVC. The Radical ignition (RI) technique shows remarkable progress in the burning velocity and combustible lean limit compared with the results of the spark ignition (SI) technique. The optimum design value of the sub-chamber geometry is near $0.11cm^{-1}$ for the ratio of the total area of the holes to the sub-chamber volume $(A_h/V_s)$. In this study, based on the former experimental results, the additional works have been performed to examine the effects of the geometry change in the number $(N_h)$, the total section area $(A_h)$, and diameter $(D_h)$ of the passage holes on the combustion characteristics in the CVC. Also ambient conditions such as the initial temperature and the initial pressure of the mixture were selected as experimental parameters and the effects of residual gas at the chamber on the combustion characteristics were investigated. As a result, the correlation between the passage hole number and overall passage hole area was grasped. The effects of the initial temperature were significant, but on the other hand, those of the initial pressure were weak. A more detailed analysis on the residual gas is required in the future.

키워드

참고문헌

  1. Chung, S. S., Park, J. S. and Lee, M. J. (2002). An experimental study on application of radical induced injection method to a real engine. IPC-12, Bangkok
  2. Heywood, J. B. (1988). Internal Combustion Engine Fundamentals. McGraw-Hill. New York. 376-390
  3. Higelin, P., Robinet, C., Mounaim-Rouselle, C., Pajot, O. and Moreau, B. (1999). A new combustion conceptfor internal combustion engines. Proc. 15th Internal Combustion Engine Symp. (Int.), No. 9935761, Seoul, Korea
  4. Ma, T., Zhao, H., Li, J. and Ladommatos, N. (2001). Experimental investigation of controlled auto-ignition combustion in a 4-stroke multi-cylindergasoline engine and drive cycle simulations. IFP Int. Cong., Rueil- Malmaison
  5. Park, J. S., Choi, H. S., Lee, M. J., Lee, T. W., Ha, J. Y. and Chung, S. S. (2002). A fundamental study to improve the ignitability of lean mixture by radicals induced injection in a constant volume combustor. FISITA Cong. Helsinki
  6. Park, J. S., Yeom, J. K., Lee, T. W., Ha, J. Y. and Chung, S. S. (2006). Study on pre-mixture combustion in a sub-chamber type CVC with multiple passage holes. Int. J. Automotive Technology 7, 1, 17-23