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Use of Gas Desorption Effect in Injection Systems of Diesel Engines

Author

Listed:
  • Maciej Bajerlein

    (Institute of Combustion Engines and Powertrains, Poznan University of Technology, 60-965 Poznan, Poland)

  • Wojciech Karpiuk

    (Institute of Combustion Engines and Powertrains, Poznan University of Technology, 60-965 Poznan, Poland)

  • Rafał Smolec

    (Institute of Combustion Engines and Powertrains, Poznan University of Technology, 60-965 Poznan, Poland)

Abstract

The article presents a concept of improving operation of the engine with the effect of gas desorption from a solution with nucleation of gas bubbles. This concept consists in dissolving gas in diesel fuel until the solution is in equilibrium. At a later stage, the phenomenon is reversed, and the gas is released from the solution during its injection into the combustion chamber. The purpose of the study is to present the idea of the desorption effect along with a thermodynamic analysis of the process and to study its impact on the operation of a diesel engine. The article also describes the most important features of the injection pump adapted to employ the desorption effect, which is a proprietary, patented solution. The conducted engine preliminary tests concerned the most important parameters of the engine’s operation (indicated pressure course, pressure growth rate, heat release rate, etc.) and the emission of harmful compounds (PM—particulate matter, CO, HC, and NO x —nitrogen oxides). A significant reduction of PM, CO, and HC, with a simultaneous increase in NO x emissions obtained in tests, confirmed that the desorption effect facilitated engine operation.

Suggested Citation

  • Maciej Bajerlein & Wojciech Karpiuk & Rafał Smolec, 2021. "Use of Gas Desorption Effect in Injection Systems of Diesel Engines," Energies, MDPI, vol. 14(1), pages 1-22, January.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:1:p:244-:d:474925
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    References listed on IDEAS

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    Cited by:

    1. Maciej Bajerlein & Wojciech Karpiuk & Rafał Smolec, 2022. "Application of Gas Dissolved in Fuel in the Aspect of a Hypocycloidal Pump Design," Energies, MDPI, vol. 15(23), pages 1-18, December.
    2. Ireneusz Pielecha & Wojciech Cieslik & Filip Szwajca, 2023. "Energy Flow and Electric Drive Mode Efficiency Evaluation of Different Generations of Hybrid Vehicles under Diversified Urban Traffic Conditions," Energies, MDPI, vol. 16(2), pages 1-17, January.

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