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Enhancing Low Temperature Combustion Through the Application of Alcohol Blends

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Listed:
  • Marton Virt

    (Budapest Univeristy of Technology and Economics)

  • Prof Mate Zoldy

Abstract

Future road transportation requires innovative propulsion technologies to address the environmental issues associated with internal combustion engines. Low temperature combustion (LTC) is a new, highly investigated technology capable of simultaneously reducing nitrogen oxide and particulate matter emissions. However, the low combustion temperature in LTC can impair oxidation, limiting its effectiveness under various operating conditions. This paper aims to investigate the effects of oxygenates, particularly alcohols, on LTC to mitigate oxidation difficulties. To demonstrate the effects of alcohols, modulated kinetics (MK) type LTC was achieved in an unmodified diesel engine by applying high rates of low-pressure exhaust gas recirculation at three different loads at 1250 rpm. The combustion and emission characteristics of the engine were evaluated during MK operation using a diesel reference fuel, a diesel-alcohol blend with 30% ethanol, and another diesel-alcohol blend with 30% 2-ethylhexanol. Both alcohols reduced particulate matter emissions and enabled a higher LTC operating range. It was concluded that introducing oxygenated fuels could be advantageous when commercial vehicles utilizing LTC become prevalent, as new combustion technologies necessitate fuels with specific characteristics for optimal performance.

Suggested Citation

  • Marton Virt & Prof Mate Zoldy, 2024. "Enhancing Low Temperature Combustion Through the Application of Alcohol Blends," Cognitive Sustainability, Cognitive Sustainability Ltd., vol. 3(3), pages 79-88, September.
    • Handle: RePEc:bcy:issued:cognitivesustainability:v:3:y:2024:i:3:p:79-88
    DOI: 10.55343/CogSust.121
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    References listed on IDEAS

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    1. Adam Nyerges & Mate Zoldy, 2023. "Ranking of four dual loop EGR modes," Cognitive Sustainability, Cognitive Sustainability Ltd., vol. 2(1), pages 53-74, March.
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      More about this item

      Keywords

      sustainability maritime and inland ports; emergency efficiency; automatization; emissions;
      All these keywords.

      JEL classification:

      • O14 - Economic Development, Innovation, Technological Change, and Growth - - Economic Development - - - Industrialization; Manufacturing and Service Industries; Choice of Technology
      • Q55 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Environmental Economics: Technological Innovation

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