Journal of Power System Engineering (동력기계공학회지)

The Korean Society for Power System Engineering (한국동력기계공학회)
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NOx Emission Characteristics of Diesel Passenger Cars Met Euro 6a and 6b Regulations on Off-cycles

Off-cycle에서 Euro 6a 및 6b 규제 만족 디젤 자동차의 NOx 배출 특성

  • Kim, Sung-Woo (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority) ;
  • Lim, Jae-Hyuk (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority) ;
  • Kim, Ki-Ho (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority)
  • 김성우 (한국석유관리원 석유기술연구소) ;
  • 임재혁 (한국석유관리원 석유기술연구소) ;
  • 김기호 (한국석유관리원 석유기술연구소)
  • Received : 2017.10.17
  • Accepted : 2017.12.06
  • Published : 2017.12.31
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Abstract

Major countries have tighten their NOx regulation of diesel passenger cars. In the case of the EU, the regulation has been toughen up to 6.25 times since 2000. Despite the regulation the NOx concentration of the ambient has not been reduced proportionally. Futhermore, some manufacturers were disclosed using a defeat device for meeting the regulation illegally. As these issues, to reduce NOx emission practically, Korea and the EU introduced the real-world driving emission(RDE) regulation and the test method that will be applied after 2017. Also, the US has used the test equipment(PEMS) to detect a defeat device. In this paper, for the regulation to make a soft landing in Korea, 4 diesel passenger cars which met Euro 6a~6b regulation and were equipped with LNT/SCR were tested at a chassis dynamometer with environmental chamber applying the off-cycles(FTP, US06, SC03, HWFET and CADC) and several ambient condition(-7 and $14^{\circ}C$) as well as certification mode(NEDC, WLTC@ $23^{\circ}C$). The result of the test showed that the ambient temp. and the engine load as a test mode impacted the NOx emission of the cars while the vehicles with SCR emitted NOx lower than with LNT. Additionally, to propose an effective RDE test method, the above result was compared with the results of the other papers which tested RDE using the same cars.

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References

  1. L. Yang, V. Franco, A. Campestrini, J. German and P. Mock, 2015, "NOx Control Technologies for EURO 6 Diesel Passenger Cars", White paper, ICCT.
  2. C. Dardioits, G. Martini, A. Marotta and U. Manfredi, 2012, "Extension of low temperature emission test to Euro 6 diesel vehicles", JRC scientific and policy reports(EUR 25408 EN), European union.
  3. Y. J. Park, S. I. Kwon, J. H. Park and J. Y. Lee, 2015, "Estimation of Real-Driving NOx Emission Characteristics from Light-Duty Diesel Vehicles with PEMS", Journal of Korean Society for Atmospheric Environment, Vol. 31, No. 6, pp. 562-572. https://doi.org/10.5572/KOSAE.2015.31.6.562
  4. V. Franco, F. P. Sanchez, J. German and P. Mock, 2014, "Real World Exhaust Emission from Modern Diesel Cars", White paper, ICCT.
  5. G, Kadijk, P. Mensch and J. Spreen, 2015, "Detailed Investigations and Real-word Emission Performance of Euro 6 Diesel Passenger cars", TNO report(TNO 2015 R10702).
  6. S. W. Kim, 2015, "Effect of Ambient Temperature and Driving Condition on Harmful Emission from the Passenger car", MS Mechanical Engineering, Chungbuk National University, Chungcheongbuk-do, Korea.
  7. G. Archer, 2016, "Dieselgate: Who? What? How?", Transport & environment.
  8. W. W. Jang, 2016, "Evaluation of Nitrogen Oxides(NOx) Emission and its After-treatment System Performance Characteristics from Diesel Passenger Vehicles on Real-world Driving with Ambient Temperature Effects", Ph. D. Mechanical Engginering, Korea University, Seoul, Korea.