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Assessing the Impact of Modifying the Fuel System of a Small Power Generator on Exhaust Emissions—A Case Study

Author

Listed:
  • Marcin Herkowiak

    (Institute of Technology and Life Sciences—National Research Institute, 3 Hrabska Avenue, 05-090 Raszyn, Poland)

  • Mariusz Adamski

    (Department of Biosystems Engineering, Poznań University of Life Sciences, 50 Wojska Polskiego Str., 60-627 Poznań, Poland)

  • Przemysław Marek

    (Institute of Technology and Life Sciences—National Research Institute, 3 Hrabska Avenue, 05-090 Raszyn, Poland)

  • Zbigniew Jarosz

    (Institute of Horticulture Production, University of Life Sciences in Lublin, 28 Gleboka Str., 20-612 Lublin, Poland)

  • Magdalena Kapłan

    (Institute of Horticulture Production, University of Life Sciences in Lublin, 28 Gleboka Str., 20-612 Lublin, Poland)

  • Kamila Klimek

    (Department of Applied Mathematics and Computer Science, University of Life Sciences in Lublin, 28 Gleboka Str., 20-612 Lublin, Poland)

  • Grzegorz Wałowski

    (Institute of Technology and Life Sciences—National Research Institute, 3 Hrabska Avenue, 05-090 Raszyn, Poland)

Abstract

Small power generators (up to 5 kW) with a dual-fuel function rely on the use of fuels with standardized quality parameters. The use of gaseous and liquid biofuels, produced by the prosumers themselves, to power the engines of these generators poses the problem of their impact on the operation of the fuel system and on exhaust gas emissions. The goal of this study was to indicate the environmental effects of adapting the internal combustion engine of a 2 kW multi-fuel generator to burn gaseous and liquid biofuels produced by the prosumer. Exhaust emission tests were carried out for the combustion of biogas, methanol, natural gas (methane) and conventional fuel. Forms of propellants that were generated at laboratory scale were used during the tests. Anaerobic organic waste management technologies were used in the tests. Biogas and biomethanol were generated for the tests. A modified SI generator fuel system: pressure reduction and fuel pre-conditioning, was tested burning gasoline, methanol, biogas and natural gas with 98% methane content. Exhaust gas emission tests in three operating states (idle, 50% load, 100% load) indicated CO 2 , CO, NO x and HC emission levels. The feasibility of using renewable fuels in a low-power generator was demonstrated, as well as the correct operation of the author’s system for supplying the generator with gaseous fuels. In the case of bioethanol, better complete combustion of the fuel was achieved than with gasoline, which was characterized by, among other things, 20% lower carbon monoxide emissions at full load. NO x emissions from the combustion of bioethanol compared to gasoline were 1.75 times lower at full load, and HC emissions were almost twice as low. In the case of biogas, there were significant carbon dioxide emissions due to the high carbon dioxide content of the fuel (40%). The other emission results for biogas were not significantly different from those from natural gas combustion.

Suggested Citation

  • Marcin Herkowiak & Mariusz Adamski & Przemysław Marek & Zbigniew Jarosz & Magdalena Kapłan & Kamila Klimek & Grzegorz Wałowski, 2023. "Assessing the Impact of Modifying the Fuel System of a Small Power Generator on Exhaust Emissions—A Case Study," Energies, MDPI, vol. 16(22), pages 1-21, November.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:22:p:7580-:d:1280054
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    References listed on IDEAS

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    1. Bożena Gajdzik & Magdalena Jaciow & Radosław Wolniak & Robert Wolny & Wieslaw Wes Grebski, 2023. "Assessment of Energy and Heat Consumption Trends and Forecasting in the Small Consumer Sector in Poland Based on Historical Data," Resources, MDPI, vol. 12(9), pages 1-33, September.
    2. Orlando Corigliano & Marco Iannuzzi & Crescenzo Pellegrino & Francesco D’Amico & Leonardo Pagnotta & Petronilla Fragiacomo, 2023. "Enhancing Energy Processes and Facilities Redesign in an Anaerobic Digestion Plant for Biomethane Production," Energies, MDPI, vol. 16(15), pages 1-29, August.
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