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Decreasing NO x of a Low-Speed Two-Stroke Marine Diesel Engine by Using In-Cylinder Emission Control Measures

Author

Listed:
  • Liyan Feng

    (Institute of Internal Combustion Engine, Dalian University of Technology, Dalian 116024, China)

  • Jiangping Tian

    (Institute of Internal Combustion Engine, Dalian University of Technology, Dalian 116024, China)

  • Wuqiang Long

    (Institute of Internal Combustion Engine, Dalian University of Technology, Dalian 116024, China)

  • Weixin Gong

    (Institute of Internal Combustion Engine, Dalian University of Technology, Dalian 116024, China)

  • Baoguo Du

    (Institute of Internal Combustion Engine, Dalian University of Technology, Dalian 116024, China)

  • Dan Li

    (Institute of Internal Combustion Engine, Dalian University of Technology, Dalian 116024, China)

  • Lei Chen

    (Institute of Internal Combustion Engine, Dalian University of Technology, Dalian 116024, China)

Abstract

The authors applied one-dimensional (1-D) simulation and 3-D Computational Fluid Dynamics (CFD) simulation to evaluate the potential of in-cylinder control methods on a low-speed 2-stroke marine engine to reach the International Maritime Organization (IMO) Tier 3 NO x emissions standards. Reducing the combustion temperature is an important in-cylinder measure to decrease NO x emissions of marine diesel engines. Miller-cycle and Exhaust Gas Recirculation (EGR) are effective methods to reduce the maximum combustion temperature and accordingly decrease NO x emissions. The authors’ calculation results indicate that with a combination of 2-stage turbocharging, a mild Miller-cycle and 10% EGR rate, the NO x emissions can be decreased by 48% without the increased Specific Fuel Oil Consumption (SFOC) penalties; with a medium Miller-cycle and 10% EGR, NO x can be decreased by 56% with a slight increase of SFOC; with a medium Miller-cycle and 20% EGR, NO x can be decreased by 77% and meet IMO Tier 3 standards, but with the high price of a considerable increase of SFOC. The first two schemes are promising to meet IMO Tier 3 standards with good fuel economy if other techniques are combined.

Suggested Citation

  • Liyan Feng & Jiangping Tian & Wuqiang Long & Weixin Gong & Baoguo Du & Dan Li & Lei Chen, 2016. "Decreasing NO x of a Low-Speed Two-Stroke Marine Diesel Engine by Using In-Cylinder Emission Control Measures," Energies, MDPI, vol. 9(4), pages 1-16, April.
    • Handle: RePEc:gam:jeners:v:9:y:2016:i:4:p:304-:d:68673
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    Citations

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    Cited by:

    1. Sokratis Stoumpos & Gerasimos Theotokatos, 2020. "Multiobjective Optimisation of a Marine Dual Fuel Engine Equipped with Exhaust Gas Recirculation and Air Bypass Systems," Energies, MDPI, vol. 13(19), pages 1-20, September.
    2. Maria Grazia De Giorgi & Antonio Ficarella, 2017. "Editorial Special Issue “Combustion and Propulsion”," Energies, MDPI, vol. 10(6), pages 1-4, June.
    3. Zhaojie Shen & Wenzheng Cui & Xiaodong Ju & Zhongchang Liu & Shaohua Wu & Jianguo Yang, 2018. "Numerical Investigation on Effects of Assigned EGR Stratification on a Heavy Duty Diesel Engine with Two-Stage Fuel Injection," Energies, MDPI, vol. 11(3), pages 1-14, February.
    4. Wang, Dawei & Shi, Lei & Zhu, Sipeng & Liu, Bo & Qian, Yuehua & Deng, Kangyao, 2020. "Numerical and thermodynamic study on effects of high and low pressure exhaust gas recirculation on turbocharged marine low-speed engine," Applied Energy, Elsevier, vol. 261(C).
    5. Zhongbo Zhang & Lifu Li, 2018. "Investigation of In-Cylinder Steam Injection in a Turbocharged Diesel Engine for Waste Heat Recovery and NO x Emission Control," Energies, MDPI, vol. 11(4), pages 1-22, April.

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