TY - CHAP A1 - Winkler, Manuel A1 - Mauky, Eric A1 - Weinrich, Sören A1 - Rabe, Dirk A1 - Krebs, Christian A1 - Kretzschmar, Jörg T1 - Gazelle: Ganzheitliche Regelung von Biogasanlagen zur Flexibilisierung und energetischen Optimierung T2 - Tagungsband Biogas in der Landwirtschaft - Stand und Perspektiven: FNR/KTBL-Kongress Y1 - 2021 SN - 978-3-945088-83-8 SP - 171 EP - 172 CY - Darmstadt ER - TY - JOUR A1 - Mauky, Eric A1 - Winkler, Manuel A1 - Krebs, Christian A1 - Müller, Ulf A1 - Rabe, Dirk A1 - Weinrich, Sören A1 - Kretzschmar, Jörg T1 - Gazelle weist nach: Modellgestütztes Fütterungsmanagement ermöglicht flexible Prozessführung JF - Biogas Journal Y1 - 2021 SN - 1619-8913 VL - 24 SP - 114 EP - 119 ER - TY - JOUR A1 - Weinrich, Sören A1 - Mauky, Eric A1 - Schmidt, Thomas A1 - Krebs, Christian A1 - Liebetrau, Jan A1 - Nelles, Michael T1 - Systematic simplification of the Anaerobic Digestion Model No. 1 (ADM1): Laboratory experiments and model application JF - Bioresource Technology N2 - Due to a limited number of available measurements on agricultural biogas plants, established process models, such as the Anaerobic Digestion Model No. 1 (ADM1), are rarely applied in practise. To provide a reliable basis for model-based monitoring and control, different model simplifications of the ADM1 were implemented for process simulation of semi-continuous anaerobic digestion experiments using agricultural substrates (maize silage, sugar beet silage, rye grain and cattle manure) and industrial residues (grain stillage). Individual model structures enable a close depiction of biogas production rates and characteristic intermediates (ammonium nitrogen, propionic and acetic acid) with equal accuracy as the original ADM1. The impact of different objective functions and standard parameter values on parameter estimates of first-order hydrolysis constants and microbial growth rates were evaluated. Due to the small number of required model parameters and suitable system characteristics, simplified model structures show clear advantages for practical application on agricultural biogas plants. Y1 - 2021 U6 - http://dx.doi.org/10.1016/j.biortech.2021.125104 SN - 0960-8524 VL - 333 ER -