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Revisiting solar dryers for small to medium production

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Resumo:This article presents an overview of passive solar dryers, an ancient technique that may be revived for food drying capacities below one ton/day. The art of dehydrating food has existed for centuries and was developed to preserve food by extracting its water content, thus delaying its natural deterioration. This article reviews traditional solar dryers and proposes a verification parameter k, parametrising the solar collector’s size by the drying capacity. The modelling and parametrisa tion of the k constant allowed the evaluation of the examples of tra ditional models from the literature systematically. Results showed that 80% of the evaluated constructed solar dryers might underperform due to lower solar collecting surfaces than those projected by the k parameter.
Autores principais:Farrero, Bernardo
Outros Autores:Rossi da Silva, Paulo Bruno; Ribeiro, Luís Frölén
Assunto:Solar dryer Food drying Solar dryer parametrisation
Ano:2023
País:Portugal
Tipo de documento:comunicação em conferência
Tipo de acesso:acesso aberto
Instituição associada:Instituto Politécnico de Bragança
Idioma:inglês
Origem:Biblioteca Digital do IPB

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