Measurement And Prediction For Air Flow Drag
In Different Packing Materials
Author(s)
C. Rautenbach, B. M.Halvorsen, E. du Plessis, S. Woudberg
& J. P. du Plessis
Abstract
Packed bed reactors are widely used in industry to improve the total contact area
between two substances in a multiphase process. In some cases, like for the packing
elements of some CO2 absorption towers, the packing material can be of such
geometric nature that during discharge through them different flow conditions can
be present in different parts of the packing. This renders prediction of pressure
drops quite difficult. This paper concerns experimental and modelling activities
to improve predictive equations for pressure drops over a packed bed of Raschig
rings. It is shown that the application of some correctivemeasures can dramatically
improve the correlation between theory and experiment, but that more research is
needed in this field, regarding both carefully controlled experiments and mathematical
modelling.
Keywords: pressure drop, porous media, packing materials, Raschig rings, drag
models.
Keywords
pressure drop, porous media, packing materials, Raschig rings, drag
models
Related Book
Other papers in this volume
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