Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.19/1766
Título: Modeling of Drying Kinetics of Chestnuts
Autor: Correia, Paula
Andrade, Sónia
Guiné, Raquel
Palavras-chave: drying
kinetic model
moisture ratio
Data: 2013
Citação: Correia PMR, Andrade S, Guiné RPF. (2013) Modeling of Drying Kinetics of Chestnuts. Proceedings of the World Congress of Engineering - The 2013 International Conference of Systems Biology and Bioengineering, Londres, Reino Unido, p. 1359-1363
Resumo: Chestnuts (Castanea Sativa) are produced in Portugal in considerable amounts, thus providing an important economic trade. Furthermore, apart from being eaten in their natural state, they can be used for a multiplicity of industrial applications, either in their natural form or after dehydration. In this work the drying kinetics of different cultivars of chestnuts was investigated, and the experiments were carried out under isothermal conditions, using a convective drier set to a temperature of 60 ºC. The experimental data obtained for the variations of moisture content along drying was fit to three thin layer models from literature with success. The experimental drying rate points were expressed as moisture ratio versus time. The results obtained allowed concluding that some chestnuts had higher initial moisture content than others and also that the presence or absence of the peel did not influence the initial moisture content of the chestnuts from the different cultivars tested. Regarding the drying curves observed for the cultivars tested, they show some differences. As to the mathematical modeling of the drying kinetics, the three models used show different performances, being the Vega-Lemus model slightly less adequate to fit the experimental sets of points.
Peer review: yes
URI: http://hdl.handle.net/10400.19/1766
Aparece nas colecções:ESAV - DIA - Documentos de congressos (comunicações, posters, actas)

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