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Deep learning based surrogate modeling and optimization for Microalgal biofuel production and photobioreactor design

Identifying optimal photobioreactor configurations and process operating conditions is critical to industrialize microalgae-derived biorenewables. Traditionally, this was addressed by testing numerous design scenarios from integrated physical models coupling computational fluid dynamics and kinetic...

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Main Authors: Ehecatl Antonio del Rio-Chanona, Jonathan Wagner, Haider Ali, Fabio Fiorelli, Dongda Zhang, Klaus Hellgardt
Format: Default Article
Published: 2018
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Online Access:https://hdl.handle.net/2134/36305
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author Ehecatl Antonio del Rio-Chanona
Jonathan Wagner
Haider Ali
Fabio Fiorelli
Dongda Zhang
Klaus Hellgardt
author_facet Ehecatl Antonio del Rio-Chanona
Jonathan Wagner
Haider Ali
Fabio Fiorelli
Dongda Zhang
Klaus Hellgardt
author_sort Ehecatl Antonio del Rio-Chanona (3927527)
collection Figshare
description Identifying optimal photobioreactor configurations and process operating conditions is critical to industrialize microalgae-derived biorenewables. Traditionally, this was addressed by testing numerous design scenarios from integrated physical models coupling computational fluid dynamics and kinetic modelling. However, this approach presents computational intractability and numerical instabilities when simulating large-scale systems, causing time-intensive computing efforts and infeasibility in mathematical optimization. Therefore, we propose an innovative data-driven surrogate modelling framework which considerably reduces computing time from months to days by exploiting state-of-the-art deep learning technology. The framework built upon a few simulated results from the physical model to learn the sophisticated hydrodynamic and biochemical kinetic mechanisms; then adopts a hybrid stochastic optimization algorithm to explore untested processes and find optimal solutions. Through verification, this framework was demonstrated to have comparable accuracy to the physical model. Moreover, multi-objective optimization was incorporated to generate a Pareto-frontier for decision-making, advancing its applications in complex biosystems modelling and optimization.
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institution Loughborough University
publishDate 2018
record_format Figshare
spelling rr-article-92412352018-11-15T00:00:00Z Deep learning based surrogate modeling and optimization for Microalgal biofuel production and photobioreactor design Ehecatl Antonio del Rio-Chanona (3927527) Jonathan Wagner (5214482) Haider Ali (5574935) Fabio Fiorelli (7128827) Dongda Zhang (3927530) Klaus Hellgardt (1310934) Chemical engineering not elsewhere classified Surrogate modelling Convolutional neural network Hybrid stochastic optimization Excreted biofuel Photobioreactor design Chemical Engineering not elsewhere classified Identifying optimal photobioreactor configurations and process operating conditions is critical to industrialize microalgae-derived biorenewables. Traditionally, this was addressed by testing numerous design scenarios from integrated physical models coupling computational fluid dynamics and kinetic modelling. However, this approach presents computational intractability and numerical instabilities when simulating large-scale systems, causing time-intensive computing efforts and infeasibility in mathematical optimization. Therefore, we propose an innovative data-driven surrogate modelling framework which considerably reduces computing time from months to days by exploiting state-of-the-art deep learning technology. The framework built upon a few simulated results from the physical model to learn the sophisticated hydrodynamic and biochemical kinetic mechanisms; then adopts a hybrid stochastic optimization algorithm to explore untested processes and find optimal solutions. Through verification, this framework was demonstrated to have comparable accuracy to the physical model. Moreover, multi-objective optimization was incorporated to generate a Pareto-frontier for decision-making, advancing its applications in complex biosystems modelling and optimization. 2018-11-15T00:00:00Z Text Journal contribution 2134/36305 https://figshare.com/articles/journal_contribution/Deep_learning_based_surrogate_modeling_and_optimization_for_Microalgal_biofuel_production_and_photobioreactor_design/9241235 CC BY-NC-ND 4.0
spellingShingle Chemical engineering not elsewhere classified
Surrogate modelling
Convolutional neural network
Hybrid stochastic optimization
Excreted biofuel
Photobioreactor design
Chemical Engineering not elsewhere classified
Ehecatl Antonio del Rio-Chanona
Jonathan Wagner
Haider Ali
Fabio Fiorelli
Dongda Zhang
Klaus Hellgardt
Deep learning based surrogate modeling and optimization for Microalgal biofuel production and photobioreactor design
title Deep learning based surrogate modeling and optimization for Microalgal biofuel production and photobioreactor design
title_full Deep learning based surrogate modeling and optimization for Microalgal biofuel production and photobioreactor design
title_fullStr Deep learning based surrogate modeling and optimization for Microalgal biofuel production and photobioreactor design
title_full_unstemmed Deep learning based surrogate modeling and optimization for Microalgal biofuel production and photobioreactor design
title_short Deep learning based surrogate modeling and optimization for Microalgal biofuel production and photobioreactor design
title_sort deep learning based surrogate modeling and optimization for microalgal biofuel production and photobioreactor design
topic Chemical engineering not elsewhere classified
Surrogate modelling
Convolutional neural network
Hybrid stochastic optimization
Excreted biofuel
Photobioreactor design
Chemical Engineering not elsewhere classified
url https://hdl.handle.net/2134/36305