Modelling of thermal behaviour of a direct solar drier possessing a chimney: Application to the drying of cassava

K B  Koua; P  Gbaha; E P M  Koffi; W F  Fassinou  and S  Toure

doi:10.17485/ijst/2011/v4i12.1

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Modelling of thermal behaviour of a direct solar drier possessing a chimney: Application to the drying of cassava

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Indian Journal of Science and Technology

DOI: 10.17485/ijst/2011/v4i12.1

Year: 2011, Volume: 4, Issue: 12, Pages: 1609-1618

Original Article

Modelling of thermal behaviour of a direct solar drier possessing a chimney: Application to the drying of cassava

K.B. Koua^1*, P. Gbaha² , E.P.M. Koffi² , W.F. Fassinou¹ and S. Toure¹

¹Laboratoire d’Energie Solaire, Université de Cocody- Abidjan, 22 BP 582 Abidjan 22 (Cote D’Ivoire)
²Laboratoire d’Energie Nouvelle et Renouvelable, Institut National Polytechnique, Félix Houphouet– Boigny de Yamoussoukro (Cote D’Ivoire).
[email protected]^*

This work is licensed under a Creative Commons Attribution 4.0 International License.

Abstract

The aim of this work is to study a direct solar drier possessing a chimney for agricultural products. The establishment of heat and mass balances leads to a system of two differential equations translating the thermal behaviour of the solar chimney. This system is completed with another differential equation giving the evolution of the product temperature according to the time. Then, the mathematical model is validated by comparing the theoretical results with the experimental ones. Cassava has been chosen as the product to be dried because of its various uses in the food. The results showed that the drying of the product is affected by the drying air temperature and the product characteristics.
Keywords: Drying kinetic, Mathematical model, Moisture Content, Cassava, Solar