Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
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Experimental Study of Variations in Combustion Characteristics with Prechamber Design Parameters in a Constant-Volume Combustion Chamber

정적연소기내 예연소실 설계인자가 연소특성에 미치는 영향에 관한 실험적 연구

  • Yang, In-Gyu (School of Mechanical Engineering, Pusan Nat'l Univ.) ;
  • Han, Dong-Sik (School of Mechanical Engineering, Pusan Nat'l Univ.) ;
  • Kim, Hyun-Kyu (School of Mechanical Engineering, Pusan Nat'l Univ.) ;
  • Chang, Young-June (RIMT, Pusan Clean Coal Center, Dept. of Mechanical Engineering, Pusan Nat'l Univ.) ;
  • Song, Ju-Hun (RIMT, Pusan Clean Coal Center, Dept. of Mechanical Engineering, Pusan Nat'l Univ.) ;
  • Jeon, Chung-Hwan (RIMT, Pusan Clean Coal Center, Dept. of Mechanical Engineering, Pusan Nat'l Univ.)
  • 양인규 (부산대학교 기계공학부) ;
  • 한동식 (부산대학교 기계공학부) ;
  • 김현규 (부산대학교 기계공학부) ;
  • 장영준 (부산대학교 기계공학부, RIMT, PC) ;
  • 송주헌 (부산대학교 기계공학부, RIMT, PC) ;
  • 전충환 (부산대학교 기계공학부, RIMT, PC)
  • Received : 2009.12.31
  • Accepted : 2010.05.11
  • Published : 2010.06.01
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Abstract

Natural gas is a promising alternative fuel that can be used to satisfy the strict engine emission regulations in many countries. To develop natural-gas engines, low emission, efficient fuel consumption, and increased power ratings have to be realized. In this study, a cylindrical constant-volume combustion chamber (CVCC) was used to investigate natural-gas combustion characteristics for different prechamber design parameters and equivalence ratios. In particular, the maximum combustion pressure and mass fraction of the burned gas were evaluated by considering orifice diameter, volume ratio of prechamber and equivalence ratio. Using this result and by analyzing the changes in combustion characteristics with variations in design parameters, the optimum prechamber parameters were determined.

천연가스는 최근 세계적으로 강화되고 있는 배기가스 규제를 만족시키기 위한 연료이다. 가스엔진개발에 있어 적은 배기가스와 보다나은 연료 소비효율이 요구되고 있다. 본 연구는 정적연소기 내에서 예연소실 설계 형상인자와 당량비에 따른 연소 특성을 연구하는데 초점을 맞추었다. 특히 예연소실 설계인자 중 오리피스 직경, 체적비와 당량비가 연소 최대압력과 질량연소분율에 미치는 영향에 대하여 연구 하였다. 본 논문은 예연소실 설계인자에 따른 연소 특성을 분석하여, 최적의 예연소실 설계인자를 제공하는 것을 목적으로 하고 있다.

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References

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