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흡기관 내로의 수용액 분사에 의한 디젤기관의 성능 및 배기 배출물 특성
윤용진(Yongjin Yun),유경현(Kyunghyun Ryu),오영택(Youngtaig Oh) 한국자동차공학회 2002 한국자동차공학회 Symposium Vol.2002 No.11
To effectively meet current regulations on the exhaust emissions of diesel engine required to control the deterioration of environmental pollution in the whole world, many studies have been performed. As a part of these studies, the effects of solution injection through intake port on the characteristics of engine performance and exhaust emissions in IDI diesel engine were investigated in this study. The formation of NOx was significantly suppressed by decreasing the gas peak temperature during the initial combustion process because the solutions played a role as a heat sink when it evaporated during the combustion process.<br/> The results of this study presented that NOx was significantly decreased with solutions containing various metallic compounds without worsening BSFC and smoke
디젤기관에서 바이오디젤유 사용시 기관성능 및 배기배출물 특성에 미치는 분사시기의 영향
유경현(Kyunghyun Ryu),윤용진(Yongjin Yun),오영택(Youngtaig Oh) 한국자동차공학회 2002 한국자동차공학회 Symposium Vol.2002 No.11
Biodiesel fuel(BDF) which is easily produced from vegetable oils such as soybean oil and rice bran oil can be effectively used as an alternative fuel in diesel engine. However, BDF can affect the performance and emissions in diesel engine because it has different chemical and physical properties from diesel fuel. To investigate the effects of injection timing on the characteristics of performance and emissions with BDF in IDI diesel engine, BDF derived from rice bran oil was considered in this study. The engine was operated at six different injection timings and six loads at a single engine speed of 2000rpm. When the injection timing was retarded. better results were obtained, thus confirming the advantage of BDF. The reduction of NOx and smoke was observed for a 2°retarded injection timing without any sacrifice of BSEC