Calibration, validation and sensitivity analysis of a surface-based ADM1 model

D.B. Panaro, L. Frunzo, M.R. Mattei, V. Luongo and G. Esposito

Ecological Modelling, 2021, vol. 460, issue C

Abstract: A surface-based kinetic model for the anaerobic digestion of potato waste was proposed. The model was calibrated and validated, and a local sensitivity analysis was performed to investigate the most sensitive parameters. The model consisted of a modified Anaerobic Digestion Model n.1 where the disintegration process was defined through a surface-based approach able to account for the influence of the particle size on the process development. Ad-hoc experiments were carried out to calibrate and validate the model at a laboratory scale. The calibration and validation procedures accounted for the methane production and organic acid concentrations observed during experimental tests. The quality of model fitting with lab-scale data was evaluated by the Modeling Efficiency, the Index of Agreement, and the Root Mean Square Error methods. Results confirmed the high accuracy of the model for the bio-methane and organic by-products prediction during the anaerobic conversion of potato waste.

Keywords: ADM1-based Model; Surface-based kinetic approach; ODEs system; Local sensitivity analysis; Anaerobic Digestion (search for similar items in EconPapers)
Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:eee:ecomod:v:460:y:2021:i:c:s0304380021002799

DOI: 10.1016/j.ecolmodel.2021.109726

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