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An Investigation of the Composition of the Flow in and out of a Two-Stroke Diesel Engine and Air Consumption Ratio

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  • Mirko Grljušić

    (Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Split, Rudjera Boškovića 32, 21000 Split, Croatia
    GM TURBO d.o.o., Vukovarska 58, 21000 Split, Croatia)

  • Ivan Tolj

    (Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Split, Rudjera Boškovića 32, 21000 Split, Croatia)

  • Gojmir Radica

    (Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Split, Rudjera Boškovića 32, 21000 Split, Croatia)

Abstract

The aim of this research was to investigate the mass, substance and energy flow through two-stroke low speed Diesel engines. For this reason, a zero-dimensional model of the combustion in the engine was developed with a calculated amount and composition of exhaust gases. Due to the large amount of oxygen in the exhaust gases, a ratio of real air consumption and stoichiometric amount of air required for combustion of injected fuel was set. The calculated ratio showed that the engine consumed four times more air than needed for combustion in AFR stoich . In this work, this was called the Air Consumption Factor or Ratio, and has not previously been mentioned in scientific literature. The air consumption ratio is defined as a factor of dry or humid air. To be more comprehensive, a modified diagram of the composition of the flow in and out of a two-stroke fuel injection engine and the cylinder was made.

Suggested Citation

  • Mirko Grljušić & Ivan Tolj & Gojmir Radica, 2017. "An Investigation of the Composition of the Flow in and out of a Two-Stroke Diesel Engine and Air Consumption Ratio," Energies, MDPI, vol. 10(6), pages 1-20, June.
    • Handle: RePEc:gam:jeners:v:10:y:2017:i:6:p:805-:d:101353
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    References listed on IDEAS

    as
    1. Cong Guan & Gerasimos Theotokatos & Hui Chen, 2015. "Analysis of Two Stroke Marine Diesel Engine Operation Including Turbocharger Cut-Out by Using a Zero-Dimensional Model," Energies, MDPI, vol. 8(6), pages 1-27, June.
    2. Larsen, Ulrik & Pierobon, Leonardo & Baldi, Francesco & Haglind, Fredrik & Ivarsson, Anders, 2015. "Development of a model for the prediction of the fuel consumption and nitrogen oxides emission trade-off for large ships," Energy, Elsevier, vol. 80(C), pages 545-555.
    3. Mirko Grljušić & Vladimir Medica & Nikola Račić, 2014. "Thermodynamic Analysis of a Ship Power Plant Operating with Waste Heat Recovery through Combined Heat and Power Production," Energies, MDPI, vol. 7(11), pages 1-27, November.
    4. Guan, Cong & Theotokatos, Gerasimos & Zhou, Peilin & Chen, Hui, 2014. "Computational investigation of a large containership propulsion engine operation at slow steaming conditions," Applied Energy, Elsevier, vol. 130(C), pages 370-383.
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    Cited by:

    1. Branko Lalić & Andrijana Poljak & Gojmir Radica & Antonija Mišura, 2021. "Low-Speed Marine Diesel Engine Modeling for NO x Prediction in Exhaust Gases," Energies, MDPI, vol. 14(15), pages 1-29, July.
    2. Yuan Qiao & Xucheng Duan & Kaisheng Huang & Yizhou Song & Jianan Qian, 2018. "Scavenging Ports’ Optimal Design of a Two-Stroke Small Aeroengine Based on the Benson/Bradham Model," Energies, MDPI, vol. 11(10), pages 1-26, October.

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