Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.14/18839
Título: Simulation of solar drying of grapes using an integrated heat and mass transfer model
Autor: Ramos, Inês N.
Brandão, Teresa R. S.
Silva, Cristina L. M.
Palavras-chave: Solar drying
Heat transfer
Mass transfer
Data: 2015
Citação: RAMOS, Inês N. ; BRANDÃO, Teresa R.S. ; SILVA, Cristina L. M. - Simulation of solar drying of grapes using an integrated heat and mass transfer model. Renewable Energy. ISSN 0960-1481. Vol. 81 (2015), p. 896-902
Resumo: A mathematical model was developed to simulate solar drying of grapes, integrating heat and mass transfer models solved by an explicit finite differences method, considering changing boundary conditions. The model simultaneously incorporated shrinkage of the product, changes in effective moisture diffusivity and dependence of thermal properties on water content and temperature. Field experiments were carried out in a mixed mode solar dryer located in the North of Portugal, with pre-blanched grapes. A good prediction of experimental solar drying curves was attained. The mathematical model can be applied for simulating solar drying of different foods, once known their specific thermo-physical properties. Simulations obtained with the developed model can be valuable for predicting accurate drying times and consequently to design, control and optimise the production of dried foods.
Peer review: yes
URI: http://hdl.handle.net/10400.14/18839
DOI: http://dx.doi.org/10.1016/j.renene.2015.04.011
Versão do Editor: http://www.sciencedirect.com/science/article/pii/S0960148115002918
Aparece nas colecções:CBQF - Artigos em revistas internacionais com Arbitragem / Papers in international journals with Peer-review

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