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Research Article Open access CC BY 4.0

Analysis of Tomato Drying by Using a Solar Tower Dryer in Natural Convection

Sié Kam, Germain Wende Pouiré Ouedraogo, Boureima Kaboré, Bienvenu Magloire Pakouzou, Moctar Ousmane, Dieudonné Joseph Bathiebo

Asian Journal of Physical and Chemical Sciences · pp. 1–8 · Published 27 Dec 2017

10.9734/AJOPACS/2017/38307

Abstract

This work presents an experimental study of the drying process of tomato in thin layer thanks to an indirect solar dryer operating in natural convection called "solar tower dryer". This experiment was performed under varying conditions of solar radiation. The objective of this study is to present the drying kinetics of the tomato and determine its physicochemical parameters such as diffusion coefficient and activation energy. The results show that the diffusion coefficient of the tomato is 6.2687 ×10-9 m²s-1 with an activation energy estimated at 20.091 kJ.mol-1.  

Tomato convective solar drying diffusion coefficient activation energy thin layer

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