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DOC 배플 위치에 따른 담체 입구에서의 유동균일도 평가
정석윤(Seokyoon Jeong),이우(Woo Lee),이기수(Gisoo Lee),김경훈(Kyunghun Kim),배상현(Sanghyun Bae),김혜삼(Hyesam Kim) 한국자동차공학회 2006 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
The technologies reduction in exhaust emissions from diesel engines are simply defined as two; one is quality control of improvement fuel system and the other is development of diesel exhaust aftertreatment. An aftertreatment devices reduce exhaust gas of diesel engine, diesel oxidacatalyst(DOC) with high reduction efficiency for harmful matter and particulate matter. We carried out the evaluation of flow uniformity in substrate inlet on location Diesel Oxidation Catalysts (DOC) for heavy duty diesel engine vehicles. It was found that better conversion efficiency depends on the condition of temperature and shape of DOC inlet. In this study, the location of baffle inside DOC was analyzed in order to show the flow distribution and uniformity research as well as the effects of flow analysis.
정석윤(Seokyoon Jeong),이우(Woo Lee),이기수(Gisoo Lee),김경훈(Kyunghun Kim),배상현(Sanghyun Bae),김혜삼(Hyesam Kim) 한국자동차공학회 2006 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
This research focused on the flow analysis of continuos regeneration Diesel Particulate Filter(DPF) for Diesel engines. Generally diesel engines are relatively superior to gasoline engine on the fuel consumption durability and combustion efficiency. But diesel engines are general1y known to be harmful to environment such as CO, HC, SOF and Particulate Matter(PM). For this reason, as an DPF and quality control of fuel has been applied as an after treatment system. In this study, the analysis was done on an heavy-duty diesel engine on which continuous regeneration DPF was installed in order to investigate the flow distribution and uniformity at the front of catalyst inlet on the change of shape of DPF.
A Study on Oscillation for Differential Equation
Lee, Gisoo 청주대학교 교육문제연구소 2001 교육과학연구 Vol.15 No.1
1계중립지연 방정식 □(t)-p□(t-τ)+g(t)(x-σ(t))=0의 진동조건중 하나인 ***** 조건 대신 ***** 로 대치하여 진동문제를 조사 연구하였다.