커먼레일 디젤기관에서 EGR율과 기관 부하의 변동이 BD20 연료의 연소 및 배기특성에 미치는 영향
Effect of EGR rate and Engine Load on Combustion and Emission Characteristics fueled with BD20 in a Common Rail Diesel Engine
2
조회
0
다운로드
4
인용
0
참고문헌
키워드
초록
In this study, we investigated the effects of EGR rate and engine load on the emission characteristics in a 4-cylinder common rail direct injection diesel engine fueled with canola oil biodiesel(BD) blended fuel. The biodiesel blend fuel BD20 (20 vol.% biodiesel and 80 vol.% ULSD blend) was used at an engine speed of 1,500rpm. The experimental results showed that with the increasing of EGR rate, the combustion pressure and rate of heat release (ROHR) of three test fuels decreased, and the ignition delay was extended, the carbon monoxide (CO) and particulate matter (PM) emissions increased slightly, but the nitrogen oxide (NOx) emission decreased clearly. On the other hand, with the increasing of engine load, the combustion pressure and ROHR increased, and the CO and PM emissions decreased. However, the NOx emission increased slightly due to the rise of the combustion temperature.
Abstract
In this study, we investigated the effects of EGR rate and engine load on the emission characteristics in a 4-cylinder common rail direct injection diesel engine fueled with canola oil biodiesel(BD) blended fuel. The biodiesel blend fuel BD20 (20 vol.% biodiesel and 80 vol.% ULSD blend) was used at an engine speed of 1,500rpm. The experimental results showed that with the increasing of EGR rate, the combustion pressure and rate of heat release (ROHR) of three test fuels decreased, and the ignition delay was extended, the carbon monoxide (CO) and particulate matter (PM) emissions increased slightly, but the nitrogen oxide (NOx) emission decreased clearly. On the other hand, with the increasing of engine load, the combustion pressure and ROHR increased, and the CO and PM emissions decreased. However, the NOx emission increased slightly due to the rise of the combustion temperature.
참고문헌 (5)
- 갈준총, "이온화된 흡입공기가 커먼레일 디젤기관의 연소성능 및 배기특성에 미치는 영향", 한국기계기술학회지, 17(3), pp.611~617 (2015), 한국기계기술학회
- S. H. Choi, "An Experimental Study on Combustion Charac teristics of Biodiesel Fuel as an Alternative Fuel in an Agricultural Diesel Engine(I)", Jou. of Korean SOC. of Mechanical Techn ology, 5(1), pp.23~28 (2003)
- 허정윤, "직접분사식 커먼레일 단기통 디젤엔진에서 EGR율에 따른 연소 및 배기특성", 한국자동차공학회 논문집, 19(2), pp.20~25 (2011), 한국자동차공학회
- S. K. Yoon, "Effects of Canola Oil Biodiesel Fuel Blends on Combustion, Performance, and Emissions Reduction in a Common Rail Diesel Engine", Energies, 7, pp.8132~8149 (2014)
- J. C. Ge, "Effects of Pilot Injection Timing and EGR on Combustion, Performance and Exhaust Emissions in a Common Rail Diesel Engine Fueled with a Canola Oil Biodiesel-Diesel Blend", Energies, 8, pp.7312~7325 (2015)