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Developing On-Road NOx Emission Factors for Euro 6b Light-Duty Diesel Trucks in Korean Driving Conditions

Author

Listed:
  • Seungcheon Ro

    (National Institute of Environmental Research (NIER), 42 Hwangyeong Road, Seo, Incheon 22689, Korea)

  • Junhong Park

    (National Institute of Environmental Research (NIER), 42 Hwangyeong Road, Seo, Incheon 22689, Korea)

  • Myunghwan Shin

    (National Institute of Environmental Research (NIER), 42 Hwangyeong Road, Seo, Incheon 22689, Korea)

  • Jongtae Lee

    (National Institute of Environmental Research (NIER), 42 Hwangyeong Road, Seo, Incheon 22689, Korea)

Abstract

This study aimed to develop on-road NOx emission factors for Euro 6b light-duty diesel trucks (LDDTs) in Korea. On-road NOx emissions were measured using portable emissions measurement systems and compared with those measured using the Korean Driving Cycle (KDC), the conventional laboratory test used to develop emission factors. To ensure the representativeness of the LDDTs emission factors, five vehicles of three models were driven along two real driving routes for total traveled mileage of 2280 km. On-road NOx levels were 2.1 to 6.9 times higher on average than those measured using the KDC because the latter does not cover the wide variability in vehicle speed and relative positive acceleration, common in real driving conditions. The lean-NOx trap was found to have disappointingly low NOx reduction efficiency in on-road driving. The on-road NOx emission factors by vehicle speeds developed in this study were comparable to the COPERT 4 factors.

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:4:p:1041-:d:500362
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    References listed on IDEAS

    as
    1. 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.
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    Cited by:

    1. Jingeun Song & Junepyo Cha, 2021. "Analysis of Driving Dynamics Considering Driving Resistances in On-Road Driving," Energies, MDPI, vol. 14(12), pages 1-16, June.
    2. Peter Mako & Andrej Dávid & Patrik Böhm & Sorin Savu, 2021. "Sustainable Transport in the Danube Region," Sustainability, MDPI, vol. 13(12), pages 1-21, June.
    3. 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.

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