Earticle

초록

영어

In this study, we investigated the effects of diesel-palm oil biodiesel-ethanol blends on combustion and emission characteristics in a 4-cylinder common rail direct injection (CRDI) diesel engine at low idling operations. The engine speed and engine load was 750 rpm and 40 Nm, while the main and pilot injection timing was respectively fixed at 2 °CA before top dead center (BTDC) and 20 °CA BTDC. The experimental results showed that the cylinder pressure increased with the increasing of palm oil biodiesel ratio from 20% to 100%. In addition, the peak value of cylinder pressure increased by 4.35% compared with pure diesel fuel when 5 vol.% ethanol oil added to diesel oil. Because the palm oil biodiesel and ethanol are the oxygenated fuel, the oxygen content played an important role in improving combustion. Based on the high oxygen content of biodiesel and ethanol, their mixing with diesel fuel effectively reduced PM emissions but increased NOx slightly, while CO and HC had no significant changes.

목차

ABSTRACT
1. 서론
2. 실험 장치 및 방법
2.1 실험 장치
2.2 실험 방법
3. 실험결과 및 고찰
3.1 연소특성
3.2 배기특성
4. 결론
References

키워드

디젤 기관 디젤 연료 에탄올 팜오일 바이오디젤 아이들링 연소 배출물 Diesel engine Diesel fuel Ethanol Palm oil biodiesel Idling Combustion Emission

저자

• 유병오 [ Byeong-O Yoo | Department of Industrial Technology(Mechanical Engineering), Jeonbuk National Unversity ]
• 윤삼기 [ Sam-Ki Yoon | Division of Mechanical Design Engineering, Jeonbuk National University ]
• 김민수 [ Min-Soo Kim | Division of Mechanical Design Engineering, Jeonbuk National University ]
• 최낙정 [ Nag-Jung Choi | Division of Mechanical Design Engineering, Jeonbuk National University ] Corresponding author

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