Recursive identification of time-variant model parameters from drying curves

R.J.C. van Ooteghem, E.Y.A. Amankwah, A.J.B. van Boxtel

Research output: Chapter in Book/Report/Conference proceedingConference paper

Abstract

This work applies the Extended Kalman Filter for recursive identification of time-variant drying rate constant and derives the behavior of the effective diffusion coefficient during drying of yam (Dioscoreaceae rotundata). The identification concerns drying at different temperatures and shrinkage behavior is taken into account. The results show for the initial phase a decreasing drying rate constant, which remains almost constant during the rest of drying. The effective diffusion coefficient is related to the product moisture content at higher moisture contents and constant for lower moisture contents. Recursive identification proved to be a very effective algorithm to reveal time-dependent behavior of drying parameters and is essential to explain underlying mechanisms in drying kinetics.
Original languageEnglish
Title of host publicationProceedings IDS2016, 20th International Drying Symposium, August 7-10 2016, Gifu, Japan
Number of pages6
Publication statusPublished - 2016
Event20th International Drying Symposium - Nagarawa Convention Centre, Gifu, Japan
Duration: 7 Aug 201610 Aug 2016
Conference number: 20
http://ids2016.org/

Conference

Conference20th International Drying Symposium
Abbreviated titleIDS
CountryJapan
CityGifu
Period7/08/1610/08/16
Internet address

Keywords

  • Drying rate constant, effective diffusion coefficient, drying curves, recursive identification, Extended Kalman Filter

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    van Ooteghem, R. J. C., Amankwah, E. Y. A., & van Boxtel, A. J. B. (2016). Recursive identification of time-variant model parameters from drying curves. In Proceedings IDS2016, 20th International Drying Symposium, August 7-10 2016, Gifu, Japan https://edepot.wur.nl/411384