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The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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A Study on the Emission Characteristics of Greenhouse Gas from Diesel Medium Duty Trucks According to Driving Modes

주행모드별 경유 중형화물자동차의 온실가스 배출 특성 연구

  • HONG, HEEKYOUNG (Transportation pollution Research Center, National Institute of Environmental Research) ;
  • CHUNG, TAEKHO (Transportation pollution Research Center, National Institute of Environmental Research) ;
  • JUNG, SUNGWOON (Transportation pollution Research Center, National Institute of Environmental Research) ;
  • KIM, SUNMOON (Transportation pollution Research Center, National Institute of Environmental Research) ;
  • SEO, SEOKJUN (Transportation pollution Research Center, National Institute of Environmental Research) ;
  • KIM, INGU (Transportation pollution Research Center, National Institute of Environmental Research) ;
  • LEE, SANGEUN (Transportation pollution Research Center, National Institute of Environmental Research) ;
  • LEE, SEOUNGHWAN (Transportation pollution Research Center, National Institute of Environmental Research) ;
  • KIM, JOUNGHWA (Transportation pollution Research Center, National Institute of Environmental Research) ;
  • HONG, YOUDEOG (Transportation pollution Research Center, National Institute of Environmental Research) ;
  • MUN, SUNHEE (Transportation pollution Research Center, National Institute of Environmental Research)
  • 홍희경 (국립환경과학원 교통환경연구소) ;
  • 정택호 (국립환경과학원 교통환경연구소) ;
  • 정성운 (국립환경과학원 교통환경연구소) ;
  • 김선문 (국립환경과학원 교통환경연구소) ;
  • 서석준 (국립환경과학원 교통환경연구소) ;
  • 김인구 (국립환경과학원 교통환경연구소) ;
  • 이상은 (국립환경과학원 교통환경연구소) ;
  • 이승환 (국립환경과학원 교통환경연구소) ;
  • 김정화 (국립환경과학원 교통환경연구소) ;
  • 홍유덕 (국립환경과학원 교통환경연구소) ;
  • 문선희 (국립환경과학원 교통환경연구소)
  • Received : 2018.10.02
  • Accepted : 2019.02.28
  • Published : 2019.02.28
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Abstract

This study was investigate the characteristics of GHGs ($CO_2$, $CH_4$, and $N_2O$) emissions of diesel medium duty trucks according to their various driving modes. GHGs emissions decreased as vehicle speed increased, and emissions increased after 64.7 km/h. The 4.5 ton trucks show higher values of $CO_2$, $CH_4$, $N_2O$, 35%, 25%, and 57%, respectively, comparing of the 2.5 ton trucks. Also, $CO_2$ emissions under WHVC mode were 20% lower than those under the NEDC mode. In the case of cold start condition, $CO_2$ emissions were 12-13% higher than those for hot start condition. In the future, the result of present study will provide basic data to set up GHGs emission standards for medium and heavy duty vehicles.

Keywords

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Fig. 1. Driving test modes: (a) NIER 7, (b) NEDC, (c) WHVC

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Fig. 2. Schematic diagram for vehicle exhaust emission test system

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Fig. 3. Overview of chassis dynamometer

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Fig. 4. Emission characteristics of GHGs according to vehiclespeeds. (a) CO2, (b) CH4, (c) N2O

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Fig. 5. Comparison of GHGs emissions according to emission standards. (a) CO2, (b) CH4, (c) N2O

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Fig. 6. Characteristics of CO2 emissions under NEDC andWHVC modes

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Fig. 7. Characteristics of CO2 emissions for cold and hot startconditions

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Fig. 8. CO2 emissions and fuel efficiency according to vehiclespeeds. (a) 2.5 ton vehicle, (b) 4.5 ton vehicle

Table 1. Specification of test vehicles

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Table 2. Specification of each driving modes

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Table 3. Specifications of chassis dynamometer

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Table 4. Specifications of exhaust gas analyzer

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Table 5. Analysis conditions of GC

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