Artificial neural networks for modeling in reaction process systems

• Tipo: Artigo em Revista Científica Internacional
• Data: 2009

Autores

Cristina Oliveira (Autor) Outra; Petia Georgieva (Autor) Outra; Fernando Rocha (Autor) FEUP; Sebastiao Feyo de Azevedo (Autor) FEUP

Revista

Título: Neural Computing and Applications

Vol. 18 Nº 1

Páginas: 15-24

ISSN: 0941-0643

Editora: Springer Nature

Indexação

ISI Web of Knowledge - 8 Citações

Scopus - 10 Citações

INSPEC

Classificação Científica

FOS: Ciências exactas e naturais > Ciências da computação e da informação

CORDIS: Ciências Tecnológicas > Engenharia > Engenharia química

Outras Informações

ID Authenticus: P-003-REN

DOI: 10.1007/s00521-008-0200-8

Abstract (EN): This work is focused on developing a more efficient computational scheme for estimation of process reaction rates based on NN models. Two scenarios are considered: (1) the kinetics coefficients of the process are completely known and the process states are partly known (measured); (2) the kinetics coefficients and the states of the process are partly known. The contribution of the paper is twofold. From one side we formulate a hybrid (ANN and mechanistic) model that outperforms the traditional reaction rate estimation approaches. From other side, a new procedure for NN supervised training is proposed when target outputs are not available. The two scenarios are successfully tested for two benchmark problems, estimation of the precipitation rate of calcium phosphate and estimation of sugar crystallization growth rate.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 10