Estimation of the mean crystal size and the moments of the crystal size distribution in batch crystallization processes

Abstract : A cascade high gain observer is designed to estimate the first four leading moments of the crystal size distribution (CSD) and the mean crystal size in batch crystallization processes. The proposed observer is based on a well-known transformation of the partial differential equation describing the CSD to a set of ordinary differential equations (the method of moments). Due to numerical difficulties resulting from the important differences in the magnitudes of the moments, a set of new variables is computed to allow a good estimation of the moments and thus the mean crystal size. In this work, only solute concentration and crystallizer temperature are used to estimate the different moments. The performance of the proposed observer is illustrated by simulation using a noisy measurement.
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Communication dans un congrès
4TH INTERNATIONAL CONFERENCE ON CONTROL ENGINEERING & INFORMATION TECHNOLOGY (CEIT), Dec 2016, Hammamet, Tunisia. IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA, 2016 4TH INTERNATIONAL CONFERENCE ON CONTROL ENGINEERING & INFORMATION TECHNOLOGY (CEIT), pp.1-6, 2016, 〈http://ieeexplore.ieee.org/document/7929069/〉. 〈10.1109/CEIT.2016.7929069〉
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https://hal-univ-bourgogne.archives-ouvertes.fr/hal-01557757
Contributeur : Le2i - Université de Bourgogne <>
Soumis le : jeudi 6 juillet 2017 - 15:24:51
Dernière modification le : jeudi 19 avril 2018 - 14:34:08

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Nawel Afsi,, Toufik Bakir, Sami Othman, Nida Sheibat-Othman, Anis Sakly. Estimation of the mean crystal size and the moments of the crystal size distribution in batch crystallization processes. 4TH INTERNATIONAL CONFERENCE ON CONTROL ENGINEERING & INFORMATION TECHNOLOGY (CEIT), Dec 2016, Hammamet, Tunisia. IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA, 2016 4TH INTERNATIONAL CONFERENCE ON CONTROL ENGINEERING & INFORMATION TECHNOLOGY (CEIT), pp.1-6, 2016, 〈http://ieeexplore.ieee.org/document/7929069/〉. 〈10.1109/CEIT.2016.7929069〉. 〈hal-01557757〉

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