바이오에탄올 적용 스파크 점화엔진의 운전조건에 따른 배출가스 특성 (Exhaust Emissions with Operating Conditions from Bio-Ethanol Fuelled Spark Ignition Engine)

서지정보

· 발행기관 : 조선대학교 공학기술연구원
· 수록지 정보 : 공학기술논문지 / 11권 / 2호 / 107 ~ 113페이지
· 저자명 : 이경환, 김재수

초록

Bioethanol has been applied to spark ignition engine as an alternative fuel to gasoline since it is renewable bio-based and oxygenated fuel. It can provide the potential to reduce the harmful exhaust emissions such as HC, NOx, CO, CO2 and particulate matters. It can also improve the power and thermal efficiency due to its higher octane number and heat of vaporization. In order to apply bioethanol as a fuel in a gasoline engine, it is necessary to clearly grasp exhaust gas emission characteristics near the stoichiometric air-fuel ratio in order to sufficiently secure the conversion efficiency of the catalytic converter while changing the air-fuel ratio and ignition timing under partial load conditions. It was found that the peak NOx emissions occurred at near stoichiometry due to oxygen contained in bioethanol and lower than gasoline. HC, CO and CO2 were also emitted lower than gasoline due to contained oxygen and highert H/C ratio.

영어초록

Bioethanol has been applied to spark ignition engine as an alternative fuel to gasoline since it is renewable bio-based and oxygenated fuel. It can provide the potential to reduce the harmful exhaust emissions such as HC, NOx, CO, CO2 and particulate matters. It can also improve the power and thermal efficiency due to its higher octane number and heat of vaporization. In order to apply bioethanol as a fuel in a gasoline engine, it is necessary to clearly grasp exhaust gas emission characteristics near the stoichiometric air-fuel ratio in order to sufficiently secure the conversion efficiency of the catalytic converter while changing the air-fuel ratio and ignition timing under partial load conditions. It was found that the peak NOx emissions occurred at near stoichiometry due to oxygen contained in bioethanol and lower than gasoline. HC, CO and CO2 were also emitted lower than gasoline due to contained oxygen and highert H/C ratio.

참고자료

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