期刊
POWDER TECHNOLOGY
卷 405, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.powtec.2022.117527
关键词
Crystallization; Surrogate assisted optimization; Artificial neural networks; Neural architecture search; Evolutionary algorithms; Multi objective optimization
资金
- Depart-ment of Biotechnology, Government of India [BT/PR34209/AI/133/19/2019]
- Department of Science and Technology, Government of India [DST/NSM/R&D_HPC_Applications/2021/23]
This paper proposes an alternative model using Artificial Neural Networks to optimize the crystallization process, achieving a significant speed improvement while maintaining accuracy through a neural architecture search strategy for hyperparameter tuning.
Optimal performance of the crystallization process is of utmost importance for industries handling bulk commodity chemicals to pharmaceuticals. Such an optimization exercise becomes extremely time expensive as the mathematical models mimicking such complex processes involve the solution of Integro-Differential Population Balance Equations using High Resolution Finite Volume Methods. In order to build a fast and robust data based alternative model, a surrogate assisted approach using Artificial Neural Networks has been proposed here. To overcome the heuristics-based estimation of the hyper-parameters in ANNs, we aim to contribute a novel Neural Architecture Search strategy for the auto-tuning of hyper-parameters integrated with sample size determination techniques. While solving a multi-objective optimization of crystallization process ensuring maximum productivity, the results from surrogates are compared with those of a high-fidelity physics driven model, which reports five order of magnitude speed improvement without sacrificing much on accuracy.(c) 2022 Elsevier B.V. All rights reserved.
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