노후 운행경유차의 NOx 배출특성분석 및 조기폐차대책을 통한 삭감 방안 검토

• Published in: 한국분무공학회지 Vol. 22; no. 3; pp. 122 - 128
• Main Authors: 길지훈, Jihoon Keel, 임윤성, Yunsung Lim, 김형준, Hyungjun Kim, 노현구, Hyungu Ro, 윤보섭, Boseop Yun, 이상은, Sangeun Lee, 이태우, Taewoo Lee, 김정수, Jeongsoo Kim, 최광호, Kwangho Choi
• Format: Journal Article
• Language: Korean
• Published: 한국분무공학회 30.09.2017
• Subjects: Accelerated Retirement program(조기폐차제도); In-Use Diesel Dehicles(운행경유차); NOx(질소산화물); Real Driving Emission(실도로 배출); 기계공학
• DOI: 10.15435/JILASSKR.2017.22.3.122
• ISSN: 1226-2277

Currently, the proportion of diesel vehicles in all automobile has grown significantly over the past few years. Air pollutant also grew up and became a social problem. In particular, the issue of NOx emissions caused by NOx high emission in real driving has become a global issue. Despite the fact that the regulatory and reduction project of the new vehicle is actively carried out, there are no existence regulations of In-use diesel vehicle’s NOx emission. Therefore, the emission characteristics of the in-use diesel vehicles were investigated to seek ways to reduce NOx emissions in this study. The test targets were used in 237 close inspection of exhaust gases and model year varied from 1996 to 2011. However, the classification of emissions by emission standards differed considerably from NOx emissions. This means that the selection method for early retirement targets should be converted from model year to amount of emissions. If the current early retirement program was applied to the existing system, pre-Euro 3 was 22.530 g/km and Euro 4 was 21.810 g/km to NOx reduction. However, when the vehicle was changed to high emission target vehicle, NOx reduction increase maximum 84.705 kg/yr. According to the study results, an effective reduction in NOx emissions can be achieved if an earlier target in expanded to Euro 4 vehicles.