1. Modelling of convective drying of carrot slices with IR heat source
- Author
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Mihoubi, D., Timoumi, S., and Zagrouba, F.
- Subjects
- *
CARROTS , *ATMOSPHERIC temperature , *HEAT transfer , *MOISTURE , *CHEMICAL models , *MASS transfer - Abstract
Abstract: This study deals with modelling of convective drying of carrot slices with infrared heat source. Desorption isotherms of carrot were determined at 30, 40 and 60°C. The GAB model was used to modelize the measured desorption isotherm. The shrinking factor of carrot slice was determined experimentally. A relationship between solid displacement and moisture content of carrot was determined. A simultaneaous heat and moisture transfers model taking into account the product deformation and based on Fick diffusion equation was developed. The model accuratelly predicts moisture content and temperature evolutions as a function of drying time and position in the carrot slices. [Copyright &y& Elsevier]
- Published
- 2009
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