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Experimental Study of the Effect of Fuel Catalytic Additive on Specific Fuel Consumption and Exhaust Emissions in Diesel Engine

Author

Listed:
  • Marcin Tkaczyk

    (Department of Automotive Engineering, Wroclaw University of Science and Technology, PL 50-370 Wroclaw, Poland)

  • Zbigniew J. Sroka

    (Department of Automotive Engineering, Wroclaw University of Science and Technology, PL 50-370 Wroclaw, Poland)

  • Konrad Krakowian

    (Department of Automotive Engineering, Wroclaw University of Science and Technology, PL 50-370 Wroclaw, Poland)

  • Radoslaw Wlostowski

    (Department of Automotive Engineering, Wroclaw University of Science and Technology, PL 50-370 Wroclaw, Poland)

Abstract

Fuel catalytic additives have been tested for many years. Herein, their influence on the overall efficiency of combustion engines is investigated, and their pro-ecological impact is assessed. The majority of this research concerns diesel engines. Despite many advantages, to this day, the use of catalytic additives has not become widespread. Wishing to clarify the situation, a research group from the Wroclaw University of Science and Technology decided to investigate this matter, starting with verification tests. This article presents the methodology and results of testing an actual diesel engine, and evaluates the effects of the use of a fuel catalytic additive. The focus was on the analysis of fuel consumption and exhaust gas emissions from a Doosan MD196TI engine. The tested additive was a commercial fuel performance catalyst (FAMAX) with up to 5% ferric chloride as an organometallic compound. The proportion of the mixture with the fuel was 1:2000. These studies provide an energy and ecological assessment of propulsion in inland vehicles relative to current exhaust emission standards. The tests were carried out in accordance with the ISO 8178 standard, albeit on a much broader scale regarding engine operation than required by the standard. In this way, a set of previously published data was more than doubled in scope. Detailed conclusions indicate the positive effect of the tested fuel additive. The emission values decreased, on average by 16.7% for particulate matter (PM), 10.1% for carbon monoxide (CO), and 7.9% for total hydrocarbons (THC). Unfortunately, the amount of nitrogen oxides (NOx) increased by 1.2%. The average difference in specific fuel consumption (BSFC) between the fuel with additive and pure diesel fuel was 0.5%, i.e. below the level of measurement error. The authors formulated the following scientific relationship between the thermal efficiency of the engine and the operation of the catalyst: the effect of the catalyst on the combustion process decreases with the increase of the thermodynamic efficiency of the engine. This conclusion indicates that despite the proven positive effect of catalysts on the combustion process, they can only be used in markets where engines with low thermal efficiency are used, i.e., older generation engines.

Suggested Citation

  • Marcin Tkaczyk & Zbigniew J. Sroka & Konrad Krakowian & Radoslaw Wlostowski, 2020. "Experimental Study of the Effect of Fuel Catalytic Additive on Specific Fuel Consumption and Exhaust Emissions in Diesel Engine," Energies, MDPI, vol. 14(1), pages 1-14, December.
    • Handle: RePEc:gam:jeners:v:14:y:2020:i:1:p:54-:d:467705
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    References listed on IDEAS

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    1. Hyung Jun Kim & Sang Hyun Lee & Sang Il Kwon & Sangki Park & Jonghak Lee & Ji Hoon Keel & Jong Tae Lee & Suhan Park, 2020. "Investigation of the Emission Characteristics of Light-Duty Diesel Vehicles in Korea Based on EURO-VI Standards According to Type of After-Treatment System," Energies, MDPI, vol. 13(18), pages 1-18, September.
    2. Zhu, Mingming & Ma, Yu & Zhang, Dongke, 2011. "An experimental study of the effect of a homogeneous combustion catalyst on fuel consumption and smoke emission in a diesel engine," Energy, Elsevier, vol. 36(10), pages 6004-6009.
    3. Zhu, Mingming & Ma, Yu & Zhang, Dongke, 2012. "Effect of a homogeneous combustion catalyst on the combustion characteristics and fuel efficiency in a diesel engine," Applied Energy, Elsevier, vol. 91(1), pages 166-172.
    4. Ma, Yu & Zhu, Mingming & Zhang, Dongke, 2013. "The effect of a homogeneous combustion catalyst on exhaust emissions from a single cylinder diesel engine," Applied Energy, Elsevier, vol. 102(C), pages 556-562.
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