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A Study on Characteristic Emission Factors of Exhaust Gas from Diesel Locomotives

Author

Listed:
  • Min-Kyeong Kim

    (Future Innovative R&D Strategy Department, Korea Railroad Research Institute (KRRI), Uiwang 16105, Korea)

  • Duckshin Park

    (Transportation Environmental Research Team, Korea Railroad Research Institute (KRRI), Uiwang 16105, Korea)

  • Minjeong Kim

    (Transportation Environmental Research Team, Korea Railroad Research Institute (KRRI), Uiwang 16105, Korea)

  • Jaeseok Heo

    (Transportation Environmental Research Team, Korea Railroad Research Institute (KRRI), Uiwang 16105, Korea
    Department of Transportation System Engineering, University of Science & Technology (UST), Daejeon 34113, Korea)

  • Sechan Park

    (Transportation Environmental Research Team, Korea Railroad Research Institute (KRRI), Uiwang 16105, Korea
    Department of Transportation System Engineering, University of Science & Technology (UST), Daejeon 34113, Korea)

  • Hwansoo Chong

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

Abstract

Use of diesel locomotives in transport is gradually decreasing due to electrification and the introduction of high-speed electric rail. However, in Korea, up to 30% of the transportation of passengers and cargo still uses diesel locomotives and diesel vehicles. Many studies have shown that exhaust gas from diesel locomotives poses a threat to human health. This study examined the characteristics of particulate matter (PM), nitrogen oxides (NOx), carbon monoxide (CO), and hydrocarbons in diesel locomotive engine exhaust. Emission concentrations were evaluated and compared with the existing regulations. In the case of PM and NOx, emission concentrations increased as engine output increased. High concentrations of CO were detected at engine start and acceleration, while hydrocarbons showed weakly increased concentrations regardless of engine power. Based on fuel consumption and engine power, the emission patterns of PM and gaseous substances observed in this study were slightly higher than the U.S. Environmental Protection Agency Tier standard and the Korean emission standard. Continuous monitoring and management of emissions from diesel locomotives are required to comply with emission standards. The findings of this study revealed that emission factors varied based on fuel consumption, engine power, and actual driving patterns. For the first time, a portable emission measurement system (PEMS), normally used to measure exhaust gas from diesel vehicles, was used to measure exhaust gas from diesel locomotives, and the data acquired were compared with previous results. This study is meaningful as the first example of measuring the exhaust gas concentration by connecting a PEMS to a diesel locomotive, and in the future, a study to measure driving characteristics and exhaust gas using a PEMS should be conducted.

Suggested Citation

  • Min-Kyeong Kim & Duckshin Park & Minjeong Kim & Jaeseok Heo & Sechan Park & Hwansoo Chong, 2020. "A Study on Characteristic Emission Factors of Exhaust Gas from Diesel Locomotives," IJERPH, MDPI, vol. 17(11), pages 1-12, May.
    • Handle: RePEc:gam:jijerp:v:17:y:2020:i:11:p:3788-:d:363418
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    References listed on IDEAS

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    1. Sarvi, A. & Zevenhoven, R., 2010. "Large-scale diesel engine emission control parameters," Energy, Elsevier, vol. 35(2), pages 1139-1145.
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    Cited by:

    1. Barouch Giechaskiel & Tobias Jakobsson & Hua Lu Karlsson & M. Yusuf Khan & Linus Kronlund & Yoshinori Otsuki & Jürgen Bredenbeck & Stefan Handler-Matejka, 2022. "Assessment of On-Board and Laboratory Gas Measurement Systems for Future Heavy-Duty Emissions Regulations," IJERPH, MDPI, vol. 19(10), pages 1-16, May.

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