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Solid Digestate—Mathematical Modeling of Combustion Process

Author

Listed:
  • Krzysztof Dziedzic

    (R&D Department, Dziedzic Transport, 34-300 Żywiec, Poland)

  • Bogusława Łapczyńska-Kordon

    (Department of Mechanical Engineering and Agrophysics, University of Agriculture in Krakow, 21 Adama Mickiewicza Al., 31-120 Kraków, Poland)

  • Michał Jurczyk

    (Department of Power Engineering and Environmental Protection, AGH University of Science and Technology, 30 Adama Mickiewicza Al., 30-059 Krakow, Poland)

  • Marek Wróbel

    (Department of Mechanical Engineering and Agrophysics, University of Agriculture in Krakow, 21 Adama Mickiewicza Al., 31-120 Kraków, Poland)

  • Marcin Jewiarz

    (Department of Mechanical Engineering and Agrophysics, University of Agriculture in Krakow, 21 Adama Mickiewicza Al., 31-120 Kraków, Poland)

  • Krzysztof Mudryk

    (Department of Mechanical Engineering and Agrophysics, University of Agriculture in Krakow, 21 Adama Mickiewicza Al., 31-120 Kraków, Poland)

  • Tadeusz Pająk

    (Department of Power Engineering and Environmental Protection, AGH University of Science and Technology, 30 Adama Mickiewicza Al., 30-059 Krakow, Poland)

Abstract

The combustion of waste biomass is becoming a key challenge for the energy sector, especially in times of growing energy demand and increasing environmental awareness of society. Processing such fuels is usually demanding. Mathematical modeling makes it possible to adapt the course of the process. The best option is to use appropriate fuel mixtures. The aim of this work was to develop a simple model that would allow the pre-selection of the mixture of two types of digestate. Residues from methane fermentation of maize and apple pomace were used in the study. The paper presents both a mathematical model and laboratory tests. The practical part was to check the validity of the model estimates. The model works on the basic data from physicochemical analysis. Laboratory tests included combustion of the samples of different mixtures. We used image analysis of thermograms to determine changes during combustion, which allowed us to determine when and where the main combustion occurs. Results show that a simple mathematical model is able to estimate the course of the combustion of a fuel particle.

Suggested Citation

  • Krzysztof Dziedzic & Bogusława Łapczyńska-Kordon & Michał Jurczyk & Marek Wróbel & Marcin Jewiarz & Krzysztof Mudryk & Tadeusz Pająk, 2022. "Solid Digestate—Mathematical Modeling of Combustion Process," Energies, MDPI, vol. 15(12), pages 1-22, June.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:12:p:4402-:d:840751
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    References listed on IDEAS

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