한국자동차공학회논문집 (Transactions of the Korean Society of Automotive Engineers)

  • 제20권3호
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  • Pages.88-97
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  • 2012
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  • 1225-6382(pISSN)
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  • 2234-0149(eISSN)
한국자동차공학회 (The Korean Society of Automotive Engineers)
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Diesel, DME, Bio-diesel 연료가 실제 도로 주행 조건에서 입자상물질 배출에 미치는 영향 파악

On-road Investigation of PM Emissions according to Vehicle Fuels (Diesel, DME, and Bio-diesel)

  • 이석환 (한국기계연구원 그린동력실) ;
  • 김홍석 (한국기계연구원 그린동력실) ;
  • 박준혁 (한국기계연구원 그린동력실) ;
  • 조규백 (한국기계연구원 그린동력실)
  • Received : 2011.07.13
  • Accepted : 2011.09.05
  • Published : 2012.05.01
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Abstract

To measure the traffic pollutants with high temporal and spatial resolution under real conditions, a mobile emission laboratory (MEL) was designed. The equipment of the mini-van provides gas phase measurements of CO, NOx, CO2 and THC (Total hydrocarbon), and number density & size distribution measurements of fine and ultra-fine particles by a fast mobility particle sizer (FMPS) and a condensation particle counter (CPC). The inlet sampling port above the bumper enables the chasing of different type of vehicles. This paper introduces the technical details of the MEL and presents data from the experiment in which a MEL chases a city bus fuelled by diesel, DME and Bio-diesel. The dilution ratio was calculated by the ratio of ambient NOx and tail-pipe NOx. Most particles from the bus fuelled by diesel were counted under 300 nm and the peak concentration of the particles was located between 30 and 60 nm. However, most particles in the exhaust of the bus fuelled by DME were nano-particles (diameter: less than 50 nm). The bus fuelled by Bio-diesel shows less particle emissions compare to diesel bus due to the presence of the oxygen in the fuel.

Keywords

References

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