Abstract
AbstractModeling of hetero-agglomeration processes is invaluable for a variety of applications in particle technology. Traditionally, population balance equations (PBE) are employed; however, calculation of kinetic rates is challenging due to heterogeneous surface properties and insufficient material data. This study investigates how the integration of machine learning (ML) techniques—resulting in so-called hybrid models (HM)—can help to integrate experimental data and close this gap. A variety of ML algorithms can either be used to estimate kinetic rates for the PBE (serial HM) or to correct the PBE’s output (parallel HM). As the optimal choice of the HM architecture is highly problem-dependent, we propose a general and objective framework for model selection and arrangement. A repeated nested cross-validation with integrated hyper-parameter optimization ensures a fair and meaningful comparison between different HMs. This framework was subsequently applied to experimental data of magnetic seeded filtration, where prediction errors of the pure PBE were reduced by applying the hybrid modeling approach. The framework helped to identify that for the given data set, serial outperforms parallel arrangement and that more advanced ML algorithms provide better interpolation ability. Additionally, it enables to draw inferences to general properties of the underlying PBE model and a statistical investigation of hyper-parameter optimization that paves the way for further improvements.
Funder
Deutsche Forschungsgemeinschaft
Karlsruher Institut für Technologie (KIT)
Publisher
Springer Science and Business Media LLC
Subject
Computer Science Applications,General Engineering,Modeling and Simulation,Software
Reference94 articles.
1. Azevedo C, Lee R, Portela RMC et al (2017) Hybrid ann-mechanistic models for general chemical and biochemical processes. Nova Science Publishers, Hauppauge, pp 229–256
2. Bayer B, von Stosch M, Striedner G et al (2020) Comparison of modeling methods for doe-based holistic upstream process characterization. Biotechnol J 15(5):1900,551. https://doi.org/10.1002/biot.201900551
3. Bergstra J, Bengio Y (2012) Random search for hyper-parameter optimization. J Mach Learn Res 13(2)
4. Bergström L (1997) Hamaker constants of inorganic materials. Adv Colloid Interface Sci 70:125–169. https://doi.org/10.1016/S0001-8686(97)00003-1
5. Beykal B, Boukouvala F, Floudas CA et al (2018) Global optimization of grey-box computational systems using surrogate functions and application to highly constrained oil-field operations. Comput Chem Eng 114:99–110. https://doi.org/10.1016/j.compchemeng.2018.01.005
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