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정적연소기내 CRSP 설계인자에 따른 연소특성에 관한 실험적 연구
양인규(In-gyu Yang),한동식(Dong-sik Han),김현규(Hyun-kyu Kim),장영준(Young-june Chang),송주헌(Ju-hun Song),전충환(Chung-hwan Jeon) 대한기계학회 2009 대한기계학회 춘추학술대회 Vol.2009 No.11
Natural gas is a promising alternative fuel to meet strict engine emission regulations in many countries. A natural gas engines achieve low emissions but the demand is for better fuel consumption, increased ratings. This study focuses on a cylindrical Constant Volume Combustion Chamber(CVCC) was used to investigate the combustion characteristics under various Combustion Radical Spark Plug(CRSP) design parameters and different equivalence ratio. The maximum combustion pressure and mass fraction burned of combustion was effected by the CRSP orifice diameter, volume ratio and equivalence ratio. This paper shows optimum parameters of CRSP according to combustion characteristics with design parameters.
정적연소기내 예연소실 설계인자가 연소특성에 미치는 영향에 관한 실험적 연구
양인규(In Gyu Yang),한동식(Dong Sik Han),김현규(Hyun Kyu Kim),장영준(Young June Chang),송주헌(Ju Hun Song),전충환(Chung Hwan Jeon) 대한기계학회 2010 大韓機械學會論文集B Vol.34 No.6
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. 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.
정적연소실내 메탄-공기 혼합기의 가연한계 및 연소특성에 관한 실험적 연구
전충환(Chung-hwan Jeon),양인규(In-gyu Yang),김현규(Hyunkyu Kim),송주헌(Ju-hun Song),장영준(Young-june Chang) 한국마린엔지니어링학회 2010 한국마린엔지니어링학회 학술대회 논문집 Vol.2010 No.4
Natural gas is a promising alternative fuel to meet strict engine emission regulations in many countries. The development of natural gas engines requires low emissions along with the demand for better fuel consumption and increased power ratings. In this study, a cylindrical Constant Volume Combustion Chamber(CVCC) was used to investigate the combustion characteristics under different ambient pressure and equivalence ratio. The maximum combustion pressure, heat release rate and mass fraction of burned gas was evaluated in particular by ambient pressure and equivalence ratio. It also show that variation of flammability limits according to existence of pre-chamber. This result could provide lean bum condition by analyzing combustion characteristics with ambient condition.