Evolutionary strategy-based feeding profile optimization of fed-batch reactors

Tamás Varga, F. Szeifert, J. Abonyi

Research output: Conference contribution

Abstract

Safe and optimal operation of complex production processes is one of the most important research and development problems in process engineering. This problem is most relevant at the design of the optimal feeding profile of fed-batch chemical reactors due to the nonlinear and unstable dynamical behavior of these processes. This paper shows that how the optimal feeding policy can be determined in fed-batch reactors by sequential quadratic programming, classical evolutionary strategy (ES) and the advanced version of ES that is based on covariance matrix adaptation. A multiple objective function was created and the search space is constrained in case all the three applied algorithms. The switching times between states in the feeding trajectory and the feed rates in each state were manipulated to find the global minima of the multiple objective function. To obtain the optimal feeding policy the first-principle model of a pilot fed-batch reactor was implemented into MATLAB and applied as dynamic simulator of the process. An off-line optimization process was carried out at different number of feeding time distribution. As the results show a significant improvement can be achieved in process performance applying advanced ES based optimization algorithms to generate feeding trajectories.

Original languageEnglish
Title of host publication8th International Symposium of Hungarian Researchers on Computational Intelligence and Informatics, CINTI 2007
Pages237-247
Number of pages11
Publication statusPublished - 2007
Event8th International Symposium of Hungarian Researchers on Computational Intelligence and Informatics, CINTI 2007 - Budapest, Hungary
Duration: nov. 15 2007nov. 17 2007

Other

Other8th International Symposium of Hungarian Researchers on Computational Intelligence and Informatics, CINTI 2007
CountryHungary
CityBudapest
Period11/15/0711/17/07

Fingerprint

Batch reactors
Trajectories
Chemical reactors
Quadratic programming
Process engineering
Covariance matrix
MATLAB
Simulators

ASJC Scopus subject areas

  • Artificial Intelligence
  • Information Systems

Cite this

Varga, T., Szeifert, F., & Abonyi, J. (2007). Evolutionary strategy-based feeding profile optimization of fed-batch reactors. In 8th International Symposium of Hungarian Researchers on Computational Intelligence and Informatics, CINTI 2007 (pp. 237-247)

Evolutionary strategy-based feeding profile optimization of fed-batch reactors. / Varga, Tamás; Szeifert, F.; Abonyi, J.

8th International Symposium of Hungarian Researchers on Computational Intelligence and Informatics, CINTI 2007. 2007. p. 237-247.

Research output: Conference contribution

Varga, T, Szeifert, F & Abonyi, J 2007, Evolutionary strategy-based feeding profile optimization of fed-batch reactors. in 8th International Symposium of Hungarian Researchers on Computational Intelligence and Informatics, CINTI 2007. pp. 237-247, 8th International Symposium of Hungarian Researchers on Computational Intelligence and Informatics, CINTI 2007, Budapest, Hungary, 11/15/07.
Varga T, Szeifert F, Abonyi J. Evolutionary strategy-based feeding profile optimization of fed-batch reactors. In 8th International Symposium of Hungarian Researchers on Computational Intelligence and Informatics, CINTI 2007. 2007. p. 237-247
Varga, Tamás ; Szeifert, F. ; Abonyi, J. / Evolutionary strategy-based feeding profile optimization of fed-batch reactors. 8th International Symposium of Hungarian Researchers on Computational Intelligence and Informatics, CINTI 2007. 2007. pp. 237-247
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