Simulation of Convective Drying with Shrinkage using the Finite Window Method: Application and Validation

  • Felix Junior Ngouem Université de Ngaoundéré, ENSAI, Laboratoire d’Energétique et de Thermique Appliquée, (LETA)
  • Marcel Edoun Université de Ngaoundéré, ENSAI, Laboratoire d’Energétique et de Thermique Appliquée, (LETA)
  • Louis Monkam Université de Douala, IUT, Laboratoire de Thermique et Energie (LTE)
  • Abraham Tetang Université de Ngaoundéré, ENSAI, Laboratoire d’Energétique et de Thermique Appliquée, (LETA)
Keywords: Simulation, convective drying, shrinkage, finite window method

Abstract

This work presents the simulation of drying with shrinkage by the finished window method. To do this, we recalled the drying balance equations and expressed the shrinkage that a product undergoes during the process of product dehydration by means of the shrinkage rate. Then presented the method of resolution employed with an application to the drying of cocoa beans. The different profiles obtained in terms of temperature, water content and volume shrinkage have been shown to be in perfect agreement with the literature. The comparison of the results of the present study with the experimental data of Koua and al., (2017) presents an average relative error of 2.89% for the water content and 0.99% for the reduced volume. The theoretical results are in perfect agreement with the experiments, which gives us a validation criterion of the method proposed as suitable for the resolution of the drying equations.

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Published
2021-03-27
Section
Articles