Description of Seedless Grape Drying and Determination of Drying Rate

Wilton Pereira da Silva, Pedro Luiz do Nascimento, Ihsan Hamawand, Cleide Maria Diniz Pereira da Silva e Silva, Josivanda Palmeira Gomes, Ihsan Hamawand

Abstract


This article compares some empirical models, with one or two parameters, used to describe seedless grape drying at low temperature. Chosen models have, as a common characteristic, an analytical expression for the derivative of dimensionless moisture content with respect to time. Comparison of the results for the simulations of drying kinetics indicates that, despite Page and Silva et alli models well represent the process, the best model is Peleg. For this model, the statistical indicators of the simulation can be considered excellent (the determination coefficient is R2 = 0.99944 and the chi-square is χ2 = 1.2335 x 10-3).


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DOI: http://dx.doi.org/10.5296/jas.v2i2.5192

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Journal of Agricultural Studies   ISSN 2166-0379

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