Determination of heat speed in potatoes using finite element modeling
April 30, 2025
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| Article Title: | Determination of heat speed in potatoes using finite element modeling |
| Authors: | Lammari L., Khlifa S.B., Kharroubi H. |
| Affiliation: | Mechanical and Agro-Industrial Engineering Laboratory, Higher School of Engineering of Medjez-ElBab Route du Kef Km 5, University of Jendouba – Tunisia |
| Abstract: | This article presents a study of the reaction to a heat flow imposed on a raw potato of the Spunta variety. Its complicated molar characterization, where water occupies a high percentage, as well as proteins, starch, and fibers, makes the conventional constitutive law insufficient to respond to the temperature-time evolution, through finite element modeling and validation by numerical simulation. This work aims to find a correlation between all the mechanical and thermal parameters necessary for the normal flow to extract a meaningful relationship. This gives temperature velocity values in the unidirectional case of (0.01197 K.s-1≤C(temperature speed)≤0.0187 K.s-1). To properly control the phenomenon, the time required for thermal homogenization is also determined in the longitudinal case and for an average length of 110mm of a potato tuber. The results show that after about 14 min at a distance of 55mm, we obtained stability between the extremes and the center for the studied texture. |
| Keywords: | finite elements, potatoes, food, heat transfer, thermal velocity. |
| *Correspondence: | Ltaief Lammari, Mechanical and Agro-Industrial Engineering Laboratory, Higher School of Engineering of Medjez-ElBab Route du Kef Km 5, University of Jendouba, Tunisia, email: ltaieflammari@gmail.com |
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