The Characteristics of Exhaust Emissions by using Oxygenated Fuels and EGR in IDI Diesel Engine

함산소연료(Diglyme, DEE)와 EGR 방법을 이용한 간접분사식 디젤기관의 배기가스 배출 특성

  • 유경현 (전북대학교 대학원) ;
  • 오영택 (전북대학교 기계공학과, 공학연구원 자동차신기술연구 센터)
  • Published : 2002.11.01

Abstract

The diesel engine is one of the most effective transport options available in all sizes and covering a wide range of applications. But, many researchers developing the diesel engine are facing tough challenges in view of the increasingly lower emissions standards. Thus, this study will explore the possible fuel additive technology to further reduce the emissions from the IDI diesel engine. The purpose of this study is to investigate the effects of oxygenated fuels on the exhaust emissions and to attain a better trade-off relation between smoke and NOx in four cylinder diesel engine. Experiments were conducted with oxygenated fuels as an effective way to improve the combustion efficiency. Some of oxygenated fuel(Diglyme and DEE) were added to the conventional diesel fuel which had no an oxygen content. Also, EGR was adopted for reducing NOx without any strong adverse effects on other exhaust emissions. This study concluded that exhaust emissions in diesel engine could be reduced by adding the oxygenated fuels which had lower boiling point, and the combustion efficiency was also improved as the oxygen content in fuel increased.

Keywords

References

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