Transactions of the Korean hydrogen and new energy society (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Experimental Study on the NO2/NOX Ratio from Exhaust of Diesel Vehicles by Chassis Dynamometer

경유자동차에서 배출되는 NO2/NOX 비율 특성

  • KIM, SUNMOON (Transportation Pollution Research Center, National Institute of Environmental Research) ;
  • KIM, JOUNGHWA (Transportation Pollution Research Center, National Institute of Environmental Research) ;
  • JUNG, SUNGWOON (Transportation Pollution Research Center, National Institute of Environmental Research) ;
  • SUNG, KIJAE (Transportation Pollution Research Center, National Institute of Environmental Research) ;
  • KIM, JEONGSOO (Transportation Pollution Research Center, National Institute of Environmental Research) ;
  • KIM, INGU (Transportation Pollution Research Center, National Institute of Environmental Research)
  • 김선문 (국립환경과학원 교통환경연구소) ;
  • 김정화 (국립환경과학원 교통환경연구소) ;
  • 정성운 (국립환경과학원 교통환경연구소) ;
  • 성기재 (국립환경과학원 교통환경연구소) ;
  • 김정수 (국립환경과학원 교통환경연구소) ;
  • 김인구 (국립환경과학원 교통환경연구소)
  • Received : 2017.04.12
  • Accepted : 2017.04.30
  • Published : 2017.04.30
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Abstract

Nitrogen dioxide ($NO_2$) is an important urban pollutant in Korea. Expecially, diesel vehicles are responsible for the most traffic rated nitrogen oxide ($NO_X$) emission, including nitric oxide (NO) and nitrogen dioxide ($NO_2$). Though nitrogen oxide ($NO_X$) emission from vehicle was applied a strict enforcement of emission standard, the specific $NO_2$ fraction in $NO_X$ ($NO_2/NO_X$) from various types of diesel vehicles was not understood. In order to investigate the fraction of $NO_2/NO_X$, the vehicle emission study was carried out at the facility of Transport Pollution Research Center (TPRC), National Institute of Environmental Research (NIER), Korea. Three different types of diesel vehicles(VAN, SUV, passenger) were tested on the NIER driving mode. The result of $NO_2/NO_X$ ratio was over 0.1 for all test vehicles and the highest $NO_2$ emission was observed at the van vehicle. The observation was showed that the emission trend of $NO_2/NO_X$ for passenger and SUV vehicles were inversely proportional. Also, as the emission standard has been strengthen, the emission rate of $NO_2$ has been decrease.

Keywords

References

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