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A Numerical Study on the Combustion Process and Emission Characteristics of a Natural Gas-Diesel Dual-Fuel Marine Engine at Full Load

Author

Listed:
  • Van Chien Pham

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

  • Jae-Hyuk Choi

    (Division of Marine Systems Engineering, Korea Maritime and Ocean University, 727, Taejong-ro, Yeongdo-gu, Busan 49112, Korea)

  • Beom-Seok Rho

    (Korea Institute of Maritime and Fisheries Technology, 367, Haeyang-ro, Yeongdo-gu, Busan 49111, Korea)

  • Jun-Soo Kim

    (Korea Institute of Maritime and Fisheries Technology, 367, Haeyang-ro, Yeongdo-gu, Busan 49111, Korea)

  • Kyunam Park

    (Machinery Service Department, Hyundai Global Service, 79, Centum Jungang-ro, Haeundae-gu, Busan 48058, Korea)

  • Sang-Kyun Park

    (Division of Marine IT, Korea Maritime and Ocean University, 727, Taejong-ro, Yeongdo-gu, Busan 49112, Korea)

  • Van Vang Le

    (Maritime Academy, Ho Chi Minh City University of Transport, No.2, Vo Oanh Str., Binh Thanh Dist., Ho Chi Minh 717400, Vietnam)

  • Won-Ju Lee

    (Division of Marine 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 combustion and emission characteristics of a four-stroke Natural gas–Diesel dual-fuel marine engine at full load. The AVL FIRE R2018a (AVL List GmbH, Graz, Austria) simulation software was used to conduct three-dimensional simulations of the combustion process and emission formations inside the engine cylinder in both diesel and dual-fuel mode to analyze the in-cylinder pressure, temperature, and emission characteristics. The simulation results were then compared and showed a good agreement with the measured values reported in the engine’s shop test technical data. The simulation results showed reductions in the in-cylinder pressure and temperature peaks by 1.7% and 6.75%, while NO, soot, CO, and CO 2 emissions were reduced up to 96%, 96%, 86%, and 15.9%, respectively, in the dual-fuel mode in comparison with the diesel mode. The results also show better and more uniform combustion at the late stage of the combustions inside the cylinder when operating the engine in the dual-fuel mode. Analyzing the emission characteristics and the engine performance when the injection timing varies shows that, operating the engine in the dual-fuel mode with an injection timing of 12 crank angle degrees before the top dead center is the best solution to reduce emissions while keeping the optimal engine power.

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:5:p:1342-:d:508553
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    References listed on IDEAS

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    Cited by:

    1. Ao Zhou & Hui Jin & Wenhan Cao & Ming Pang & Yangyang Li & Chao Zhu, 2022. "Influence of Pilot Injection on Combustion Characteristic of Methanol–Diesel Dual-Fuel Engine," Energies, MDPI, vol. 15(10), pages 1-14, May.
    2. Jens Frühhaber & Thomas Lauer, 2021. "Numerical Investigation of the Turbulent Flame Propagation in Dual Fuel Engines by Means of Large Eddy Simulation," Energies, MDPI, vol. 14(16), pages 1-25, August.
    3. Mirosław Karczewski & Grzegorz Szamrej, 2023. "Experimental Evaluation of the Effect of Replacing Diesel Fuel by CNG on the Emission of Harmful Exhaust Gas Components and Emission Changes in a Dual-Fuel Engine," Energies, MDPI, vol. 16(1), pages 1-32, January.
    4. 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.

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