Combined Mechanistic and Empirical Modelling

Verfasser / Beitragende:
[Belmiro Duarte, P. M. Saraiva, C. C. Pantelides]
Ort, Verlag, Jahr:
2004
Enthalten in:
International Journal of Chemical Reactor Engineering, 2/1(2004-01-15)
Format:
Artikel (online)
ID: 378927744
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024 7 0 |a 10.2202/1542-6580.1128  |2 doi 
035 |a (NATIONALLICENCE)gruyter-10.2202/1542-6580.1128 
245 0 0 |a Combined Mechanistic and Empirical Modelling  |h [Elektronische Daten]  |c [Belmiro Duarte, P. M. Saraiva, C. C. Pantelides] 
520 3 |a We consider a hybrid modelling approach based on the combination of prior knowledge, in the form of mechanistic models, with tools for the extraction of knowledge from operating data: the first component captures first-principles system behavior features, while the second one accounts for the differences found between mechanistic predictions and real data. The empirical modelling methods tested include backpropagation Artificial Neural Networks (ANN), Multivariate Adaptive Regressive Splines (MARS) and Regression Analysis (RA). In the proposed hybrid structure, mechanistic predictions provide additional inputs for the empirical module. To evaluate the performance of the various combinations of modules and hybrid approaches, we consider two simulated case studies (involving a CSTR with a reversible reaction and a fed-batch penicillin fermentation process). In all of the above, our hybrid structure based on a mechanistic module together with an empirical component has outperformed other approaches, and the mechanistic model/MARS combination resulted in lowest overall prediction errors. 
540 |a ©2011 Walter de Gruyter GmbH & Co. KG, Berlin/Boston 
690 7 |a Hybrid Modelling  |2 nationallicence 
690 7 |a Gray Box Modelling  |2 nationallicence 
690 7 |a Multivariate Adaptive Regression Splines  |2 nationallicence 
700 1 |a Duarte  |D Belmiro  |u ISEC, Polytechnic Institute of Coimbra, bduarte@isec.pt  |4 aut 
700 1 |a Saraiva  |D P. M.  |u DEQ, Universidade de Coimbra, pas@eq.uc.pt  |4 aut 
700 1 |a Pantelides  |D C. C.  |u Imperial College, c.pantelides@imperial.ac.uk  |4 aut 
773 0 |t International Journal of Chemical Reactor Engineering  |d De Gruyter  |g 2/1(2004-01-15)  |q 2:1  |1 2004  |2 2  |o ijcre 
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950 |B NATIONALLICENCE  |P 700  |E 1-  |a Saraiva  |D P. M.  |u DEQ, Universidade de Coimbra, pas@eq.uc.pt  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Pantelides  |D C. C.  |u Imperial College, c.pantelides@imperial.ac.uk  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t International Journal of Chemical Reactor Engineering  |d De Gruyter  |g 2/1(2004-01-15)  |q 2:1  |1 2004  |2 2  |o ijcre 
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