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Diesel 기관의 미립자와 NOx 동시저감에 관한 연구
오영택(Y.T.OH),이중희(J.H.Lee),유경현(K.H.Ryu),최승훈(S.H.Choi),김정기(J.K.Kim) 한국자동차공학회 1997 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1997 No.11_1
This paper is concerned with the effects of oxyaenated fuel on exhaust emissions.<br/> An Experiment was conducted to investigate the PM and NOx emissions by using dimethyl carbonate as an oxygenated fuel in a naturally aspirated DI diesel engine.<br/> With increased oxygenated fucl amounts, mainly from depressed thermal cracking there were significant reductions in PM, HC and CO emissions, while a smal increase in NOx was encountered concurrently.<br/> The effective reduction in PM with oxygenated fuel was maintained with the presence of CO₂, which suggested a low NOx and PM could be obtained in combination of using Oxygenated fuel and cooled EGR.<br/>
오영택,유경현,정규조 전북대학교 공업기술연구소 1998 工學硏究 Vol.29 No.-
Recently, lots of researcher have been attached to develope various alternative fuels and to use renewable fuels for solution of the exhaust emission problems. In this study, the usability of used vegetable oil as alternative fuel for diesel engines has been investigated. This paper carried out by comparing the exhaust emissions and performance in diesel engine with used vegetable oil and conventional diesel fuel. Since the vegetable oil includes oxygen of about 10%, it influenced the combustion process strong. So, the smoke emissions of used vegetable oil were exhausted to be lower than those of diesel fuel. Also, the used vegetable oil was much the same cycle to cycle variation with diesel fuel except P_(dP/dθ)max, but the cycle to cycle variation of used vegetable oil was reduced significantly by preheating of the fuel and swirling of the intake air. It was concluded that used vegetable oil could be utilized effectively as renewable fuel for diesel engine.