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Effects of the Multiple Injection Strategy on Combustion and Emission Characteristics of a Two-Stroke Marine Engine

Author

Listed:
  • Ju-Hwan Seol

    (South Sea Fisheries Management Service, 128 Imhang-ro, Jeju-si 63280, Korea)

  • Van Chien Pham

    (Graduate School of Korea Maritime and Ocean University, 727, Taejong-ro, Yeongdo-gu, Busan 49112, Korea)

  • Won-Ju Lee

    (Division of Marine System Engineering, Korea Maritime and Ocean University, 727, Taejong-ro, Yeongdo-gu, Busan 49112, Korea
    Interdisciplinary Major of Maritime AI Convergence, Korea Maritime and Ocean University, 727, Taejong-ro, Yeongdo-gu, Busan 49112, Korea)

Abstract

This paper presents research on the effects of the multiple injection strategies on the combustion and emission characteristics of a two-stroke heavy-duty marine engine at full load. The ANSYS FLUENT simulation software was used to conduct three-dimensional simulations of the combustion process and emission formations inside the engine cylinder in both single- and double-injection modes to analyze the in-cylinder pressure, temperature, and emission characteristics. The simulation results were then compared and showed good agreement with the measured values reported in the engine’s sea-trial technical reports. The simulation results showed reductions in the in-cylinder pressure and temperature peaks by 6.42% and 12.76%, while NO and soot emissions were reduced up to 24.16% and 68%, respectively, in the double-injection mode in comparison with the single-injection mode. However, the double-injection strategy increased the CO 2 emission (7.58%) and ISFOC (23.55%) compared to the single-injection. These are negative effects of the double-injection strategy on the engine that the operators need to take into consideration. The results were in line with the literature reviews and would be good material for operators who want to reduce the engine exhaust gas emission in order to meet the stricter IMO emission regulations.

Suggested Citation

  • Ju-Hwan Seol & Van Chien Pham & Won-Ju Lee, 2021. "Effects of the Multiple Injection Strategy on Combustion and Emission Characteristics of a Two-Stroke Marine Engine," Energies, MDPI, vol. 14(20), pages 1-16, October.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:20:p:6821-:d:659362
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    References listed on IDEAS

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    1. Thomson, Heather & Corbett, James J. & Winebrake, James J., 2015. "Natural gas as a marine fuel," Energy Policy, Elsevier, vol. 87(C), pages 153-167.
    2. Van Chien Pham & Jae-Hyuk Choi & Beom-Seok Rho & Jun-Soo Kim & Kyunam Park & Sang-Kyun Park & Van Vang Le & Won-Ju Lee, 2021. "A Numerical Study on the Combustion Process and Emission Characteristics of a Natural Gas-Diesel Dual-Fuel Marine Engine at Full Load," Energies, MDPI, vol. 14(5), pages 1-28, March.
    3. Qiu, Liang & Cheng, Xiaobei & Liu, Bei & Dong, Shijun & Bao, Zufeng, 2016. "Partially premixed combustion based on different injection strategies in a light-duty diesel engine," Energy, Elsevier, vol. 96(C), pages 155-165.
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    Cited by:

    1. Mohsen Ayoobi & Pedro R. Resende & Alexandre M. Afonso, 2022. "Numerical Investigations of Combustion—An Overview," Energies, MDPI, vol. 15(9), pages 1-5, April.

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