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Model-based control for a demand-driven biogas production to cover residual load rises

  • The development of systems for energy storage and demand-driven energy production will be essential to enable the switch from fossil to renewable energy sources in future. To cover the residual load rises, a rigorous dynamic process model based on the Anaerobic Digestion Model No. 1 (ADM1) was applied to analyse the flexible operation of biogas plants. For this, the model was optimised and an operational concept for a demand-driven energy production was worked out. Different substrates were analysed, both by batch fermentation and Weende analysis with van Soest method, to determine the input data of the model. The lab results show that the substrates have got different degradation kinetics and biogas potentials. Finally, the ADM1 was extended with a feeding algorithm which is based on a PI controller. Essential feeding times and quantities of available substrates were calculated so that a biogas plant can cover a defined energy demand. The results prove that a flexible operation of biogas plants with a feeding strategy is possible.

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Metadaten
Author:Sven SteinigewegORCiD, Ward Quaghebeur, Frank Uhlenhut, Piotr Biernacki, Lena Peters
DOI:https://doi.org/10.1007/s00449-019-02179-6
Parent Title (English):Bioprocess and Biosystems Engineering
Document Type:Article
Language:English
Date of first Publication:2019/08/02
Release Date:2025/01/21
Tag:biogas production; residual load rises
Volume:Vol.42
First Page:1829
Last Page:1841
Institutes:Fachbereich Technik
Research Focus Areas:nachhaltige Technologien und Prozesse