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Advisor(s)
Abstract(s)
In the present work a diffusion based model was adopted to represent the drying behaviour of pears, in a continuous convective drier, taking into consideration the variation of the properties of the pears along drying.
The program developed was simulated for a significant number of situations, varying the process variables. The temperatures tested were 30, 40 and 50 ºC, the air velocities were 0.5, 1.0 and 1.5 m/s, and the relative humidity of the drying air was 40, 50 and 60 %.
From the cases analyzed and taking into account the specifications of the product that is to be obtained it was concluded that the drying should be carried out at 40 ºC, with the drying air at 1.5 m/s, and containing 60 % RH.
Description
Keywords
Modelling Simulation Pear drying
Pedagogical Context
Citation
Guiné RPF, Rodrigues AE, Castro JAAM, Figueiredo MM. (2005) Modelling and simulation of pear drying. Livro de resumos e CD-Rom de proceedings da 9th Internacional Chemical Engineering Conference (CHEMPOR2005), 6 pag., Coimbra.