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Thermal Sciences 2004. Proceedings of the ASME - ZSIS International Thermal Science Seminar II
June, 13-16, 2004, Bled, Slovenia

DOI: 10.1615/ICHMT.2004.IntThermSciSemin


ISBN Print: 978-9-61913-930-1

Experimental Analysis of Hydrodynamics and Influence of Temperature in a Food Dryer

pages 535-540
DOI: 10.1615/ICHMT.2004.IntThermSciSemin.650
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RESUMO

In this article we expose a mathematical model allowing the determination of the speed profile in a drier drowned channels; several authors could get the trajectory of grains from resolution of model kinematics, probabilistic or other; but unfortunately, results are not properly exact. Our approach of which its source is inspired of the probabilistic model considers the out-flow of the grain from top to bottom is the other way around equivalent to the out-flow of hiatuses appearing at the level of the crack and propagating itself at random upwards of the bed, says that otherwise is out-flow reaction that provokes the fall of grains and that gives birth has the apparition of hiatuses; we solved the equation of transportation coupled to a double diffusion a radial and the other axial therefore; experiences based on the method of tracers permitted us to confront the experimental results with the model.

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