Effects of air throttling on the performance and emission characteristics of a diesel engine
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The air-fuel ratio is a significant parameter related to engine performance, and can be controlled by adjusting the throttle valve and the amount of fuel injected. In this study, the performance and emission characteristics of an air-cooled single-cylinder MITSUKI MIT-178F diesel engine were investigated by imposing varying loads on the air throttling levels of 65%, 70%, and 75%. Accordingly, the torque generated by the engine increased as the air throttling level increased, and the fuel conversion efficiency was very low for the cases with air throttling levels of 65% and 70%. It was observed that the higher the exhaust gas temperature, the higher the NOx emission, and the lower the CO2 emission concentration as the engine speed increased. In addition, particulate matter (PM) concentration appeared to decrease as the air-fuel ratio increased under air throttling levels of 70% and 75%.
Abstract
The air-fuel ratio is a significant parameter related to engine performance, and can be controlled by adjusting the throttle valve and the amount of fuel injected. In this study, the performance and emission characteristics of an air-cooled single-cylinder MITSUKI MIT-178F diesel engine were investigated by imposing varying loads on the air throttling levels of 65%, 70%, and 75%. Accordingly, the torque generated by the engine increased as the air throttling level increased, and the fuel conversion efficiency was very low for the cases with air throttling levels of 65% and 70%. It was observed that the higher the exhaust gas temperature, the higher the NOx emission, and the lower the CO2 emission concentration as the engine speed increased. In addition, particulate matter (PM) concentration appeared to decrease as the air-fuel ratio increased under air throttling levels of 70% and 75%.
참고문헌 (15)
- 천정민, "Effect of common-rail pressure and natural gas proportion on performance of dual fuel diesel engine", 한국마린엔지니어링학회지, 44(2), pp.133~138 (2020), 한국마린엔지니어링학회[DOI]
- 이형민, "Effects of multiple uniformity split injection strategies on combustion and exhaust emission characteristics in a single-cylinder diesel engine", 한국마린엔지니어링학회지, 44(2), pp.117~125 (2020), 한국마린엔지니어링학회[DOI]
- W. Tutak, "Alco-hol–diesel fuel combustion in the compression ignition en-gine", Fuel, 154, pp.196~206 (2015)
- L. Zhu, "Emis-sions characteristics of a diesel engine operating on bio-diesel and biodiesel blended with ethanol and methanol", Science of the Total Environment, 408(4), pp.914~921 (2010)
- O. Armas, "Characterization of light duty diesel engine pollutant emis-sions using water-emulsified fuel", Fuel, 84(7-8), pp.1011~1018 (2005)
- 임재근, "디젤기관에 있어서 에멀젼연료가 배기배출물 특성에 미치는 영향", 한국마린엔지니어링학회지, 31(1), pp.44~50 (2007), 한국마린엔지니어링학회
- 류영현, "기존 선박의 디젤발전기용 SCR 시스템 설치에 관한 연구", 한국마린엔지니어링학회지, 39(4), pp.412~417 (2015), 한국마린엔지니어링학회[DOI]
- J. H. Baik, "Control of NOx emissions from die-sel engine by selective catalytic reduction(SCR)with urea", Topics in Catalysis, 30, pp.37~41 (2004)
- 천봉수, "2.2 L 직접분사 디젤 엔진에서 LNT 흡장률이 NOx 정화 효율에 미치는 영향", 한국마린엔지니어링학회지, 43(3), pp.139~144 (2019), 한국마린엔지니어링학회[DOI]
- 송규근, "디젤엔진의 출력 및 배기가스에 미치는 EGR의 영향", 한국마린엔지니어링학회지, 39(9), pp.870~875 (2015), 한국마린엔지니어링학회[DOI]
- Air-Fuel Ratio Regulation with Optimum Throttle Opening in Diesel-Dual-Fuel Engine, "W. Chatlatanagulchai", SAE, ~, pp.Technical Paper no. 2010-01-1573 (2010)
- Coordinated Control of EGR and VNT in Turbocharged Diesel Engine Based on Intake Air Mass Observer, "L. Bai", SAE, ~, pp.Technical Paper no. 2002-01-1292 (2002)
- 김태현, "대응출력 150마력 및 240마력 터보차저 선박용 디젤기관의 동력성능 및 배출특성 비교에 관한 연구", 한국기계가공학회지, 12(1), pp.43~51 (2013), 한국기계가공학회
- Effect of Intake Pres-sure on Performance and Emissions in an Automotive Die-sel Engine Operating in Low Temperature Combustion Re-gimes, "W. F. Colban", SAE, ~, pp.Technical Paper no. 2007-01-4063 (2007)
- G. Zamboni, "Hybrid EGR and turbocharging systems control for low NOX and fuel consumption in an automotive diesel engine", Applied En-ergy, 165, pp.839~848 (2016)