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NOx Emissions from Euro 5 and Euro 6 Heavy-Duty Diesel Vehicles under Real Driving Conditions

Author

Listed:
  • Sangchul Ko

    (National Institute of Environmental Research (NIER), Incheon 22689, Korea
    Department of Construction Machinery Engineering, Inha University, Incheon 22212, Korea)

  • Junhong Park

    (National Institute of Environmental Research (NIER), Incheon 22689, Korea)

  • Hyungjun Kim

    (National Institute of Environmental Research (NIER), Incheon 22689, Korea)

  • Gunwoo Kang

    (National Institute of Environmental Research (NIER), Incheon 22689, Korea)

  • Jongchul Lee

    (National Institute of Environmental Research (NIER), Incheon 22689, Korea)

  • Jongmin Kim

    (National Institute of Environmental Research (NIER), Incheon 22689, Korea)

  • Jongtae Lee

    (National Institute of Environmental Research (NIER), Incheon 22689, Korea)

Abstract

Despite the strengthening of vehicle emissions standards and test methods, nitrogen oxide (NOx) emissions from on-road mobile sources are not being notably reduced. The introduction of real driving emission (RDE) regulations is expected to reduce the discrepancy between emission regulations and actual air pollution. To analyze the effects of RDE regulations on heavy-duty diesel vehicles, pollutants emitted while driving were measured using a portable emission measurement system (PEMS) for Euro 5 and Euro 6 vehicles, which were produced before and after RDE regulations, respectively. NOx emissions were compared as a function of emissions allowance standards, gross vehicle weight (GVW), average vehicle speed, and ambient temperature. NOx emissions from Euro 6 vehicles were found to be low, regardless of GVW; emissions from both vehicular categories increased with a decline in the average speed. To reflect real road driving characteristics more broadly in the RDE test method for heavy-duty vehicles, it is necessary to consider engine power, which is a criterion for classifying effective sections, in the moving average window (MAW) analysis method, as well as including cold start conditions.

Suggested Citation

  • Sangchul Ko & Junhong Park & Hyungjun Kim & Gunwoo Kang & Jongchul Lee & Jongmin Kim & Jongtae Lee, 2020. "NOx Emissions from Euro 5 and Euro 6 Heavy-Duty Diesel Vehicles under Real Driving Conditions," Energies, MDPI, vol. 13(1), pages 1-13, January.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:1:p:218-:d:304498
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    References listed on IDEAS

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    1. Kang, Wooseok & Choi, Byungchul & Jung, Seunghun & Park, Suhan, 2018. "PM and NOx reduction characteristics of LNT/DPF+SCR/DPF hybrid system," Energy, Elsevier, vol. 143(C), pages 439-447.
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    Cited by:

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    2. Hensher, David A. & Wei, Edward, 2024. "Energy and environmental costs in transitioning to zero and low emission trucks for the Australian truck Fleet: An industry perspective," Transportation Research Part A: Policy and Practice, Elsevier, vol. 185(C).
    3. Maksymilian Mądziel, 2023. "Vehicle Emission Models and Traffic Simulators: A Review," Energies, MDPI, vol. 16(9), pages 1-31, May.
    4. Kazimierz Lejda & Artur Jaworski & Maksymilian Mądziel & Krzysztof Balawender & Adam Ustrzycki & Danylo Savostin-Kosiak, 2021. "Assessment of Petrol and Natural Gas Vehicle Carbon Oxides Emissions in the Laboratory and On-Road Tests," Energies, MDPI, vol. 14(6), pages 1-19, March.
    5. Zhou, Wenji & Hagos, Dejene Assefa & Stikbakke, Sverre & Huang, Lizhen & Cheng, Xu & Onstein, Erling, 2022. "Assessment of the impacts of different policy instruments on achieving the deep decarbonization targets of island energy systems in Norway – The case of Hinnøya," Energy, Elsevier, vol. 246(C).
    6. Andrzej Ziółkowski & Paweł Fuć & Piotr Lijewski & Aleks Jagielski & Maciej Bednarek & Władysław Kusiak, 2022. "Analysis of Exhaust Emissions from Heavy-Duty Vehicles on Different Applications," Energies, MDPI, vol. 15(21), pages 1-21, October.
    7. Dong In Lee & Junhong Park & Myunghwan Shin & Jongtae Lee & Sangki Park, 2022. "Characteristics of Real-World Gaseous Emissions from Construction Machinery," Energies, MDPI, vol. 15(24), pages 1-18, December.
    8. Seungcheon Ro & Junhong Park & Myunghwan Shin & Jongtae Lee, 2021. "Developing On-Road NOx Emission Factors for Euro 6b Light-Duty Diesel Trucks in Korean Driving Conditions," Energies, MDPI, vol. 14(4), pages 1-13, February.
    9. Hyung Jun Kim & Sang Hyun Lee & Sang Il Kwon & Sangki Park & Jonghak Lee & Ji Hoon Keel & Jong Tae Lee & Suhan Park, 2020. "Investigation of the Emission Characteristics of Light-Duty Diesel Vehicles in Korea Based on EURO-VI Standards According to Type of After-Treatment System," Energies, MDPI, vol. 13(18), pages 1-18, September.

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