Modelling batch drying of sand in a draft-tube conical spouted bed |
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Authors: | Martin Olazar Gartzen Lopez Haritz Altzibar Javier Bilbao |
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Affiliation: | Univ. of the Basque Country, Dept. Chemical Engineering, P.O. Box 644-E48080, Bilbao, Spain |
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Abstract: | A model has been built to predict the evolution of sand drying in a conical spouted bed with a non-porous draft tube. Three regions have been considered in the model, i.e., spout, annulus and fountain, and unsteady-state mass balances have been written for water in the solid and gaseous phases. The model has been validated by comparing its results with the experimental ones obtained in a previous study and it allows predicting the moisture content evolution of both the air and the sand during the drying process. |
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Keywords: | Spouted bed Drying Draft tube Simulation |
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