Empirical Validation of a Biogas Plant Simulation Model and Analysis of Biogas Upgrading Potentials

Jan Martin Zepter, Jan Engelhardt, Tatiana Gabderakhmanova, Mattia Marinelli*

*Corresponding author for this work

    Research output: Contribution to journalJournal articleResearchpeer-review

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    Abstract

    Biogas plants may support the transformation towards renewable-based and integrated energy systems by providing dispatchable co-generation as well as opportunities for biogas upgrading or power-to-X conversion. In this paper, a simulation model that comprises the main dynamics of the internal processes of a biogas plant is developed. Based on first-order kinetics of the anaerobic digestion process, the biogas production of an input feeding schedule of raw material can be estimated. The output of the plant in terms of electrical and thermal energy is validated against empirical data from a 3-MW biogas plant on the Danish island of Bornholm. The results show that the model provides an accurate representation of the processes within a biogas plant. The paper further provides insights on the functioning of the biogas plant on Bornholm as well as discusses upgrading potentials of biogas to biomethane at the plant from an energy perspective.
    Original languageEnglish
    Article number2424
    JournalEnergies
    Volume14
    Issue number9
    Number of pages19
    ISSN1996-1073
    DOIs
    Publication statusPublished - 2021

    Keywords

    • Anaerobic digestion
    • Biogas
    • Biogas upgrading
    • CHP
    • Electrical energy
    • Modeling
    • Multienergy system
    • Thermal energy
    • Validation

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