융복합기술연구소 논문집 (Journal of Institute of Convergence Technology)

한국교통대학교 융복합기술연구소 (Institute of Convergence Technology)
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Euro-6 대응 경유 차량의 NOx 저감율 분석 연구

Research on the NOx Reduction Rate of Diesel Vehicle for Euro-6

  • 투고 : 2017.04.27
  • 심사 : 2017.05.18
  • 발행 : 2017.05.31
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초록

As emission gas regulation of deisel vehicles is strengthened to Euro-6, It becomes difficult to deal with NOx regulated value mainly by EGR without additional after-treatment system. In addition, RDE(Real Driving Emissions) test will be introduced after september 2017. Therefore, It is essential to develop the after-treatment of diesel vehicles which reduce NOx emissions. It is possible to use DOC, DPF, LNT or DOC, DPF and SCR as a after-treatment system for reducing NOx. However, It is expected that the SCR will be applied widely because LNT alone does not have sufficient NOx purification efficiency. In this study, It tried to analyze the efficiency of reducing NOx emissions during the mode test by attaching a NOx sensor to test vehicle. As a result, It was confirmed that NOx emissions was significantly reduce through the after-treatment system from engine. And the NOx reduction efficiency of SCR was about 4.5 times better than DOC, DPF.

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참고문헌

  1. J. Kim, "Diesel Vehicle Emission Reduction Technology", Auto Journal of KSAE, Vol.38, No.11, pp.26-28, 2016.
  2. "Real-Driving Emissions Test Procedure for Exhaust Gas Pollutant Emissions of Cars and Light Commercial Vehicles in Europe", ICCT Policy update, 2017
  3. G. Yeo, "Automotive After Treatment Systems for the Future Emission Regulations", Auto Journal of KSAE, Vol.39, No.4, pp.18-26, 2017.