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|Title:||Heat and mass transfer during drying of a bed of shrinking particles - Simulation for carrot cubes dried in a spout-fluidized-bed drier|
Heat and mass transfer
|Citation:||Białobrzewski, I., Zielińska, M., Mujumdar, A.S., Markowski, M. (2008-09). Heat and mass transfer during drying of a bed of shrinking particles - Simulation for carrot cubes dried in a spout-fluidized-bed drier. International Journal of Heat and Mass Transfer 51 (19-20) : 4704-4716. ScholarBank@NUS Repository. https://doi.org/10.1016/j.ijheatmasstransfer.2008.02.031|
|Abstract:||The purpose of the present study was to develop a model to describe the heat and mass transfer during the drying of carrot cubes in a spout-fluidized-bed drier. The model took into account the non-homogeneous shrinkage of the material. The Arbitrary Lagrange-Eulerian (ALE) formulation was applied to enter the problem with moving boundaries. Three phases of drying were distinguished according to the behavior of changes in percent local error of estimation: an initial phase of warming up the material - characterized by a low level of error of moisture content prediction, a second phase - characterized by an increase in the error of moisture content prediction and a phase of decreasing error. A simple test of the sensitivity of the model to the changes in heat transfer coefficient was performed in order to improve the ability of the model to predict the changes in moisture content and temperature of dried carrots. The predicted changes in both the moisture content and the temperature of carrot cubes during drying in a spout-fluidized-bed drier indicate that the model can be successfully applied to describe moisture content, temperature and deformation of dried particles in cases when the very high accuracy of moisture content and temperature prediction is not a crucial element of investigation of the drying process. © 2008 Elsevier Ltd. All rights reserved.|
|Source Title:||International Journal of Heat and Mass Transfer|
|Appears in Collections:||Staff Publications|
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