Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 480607
Title DEM-CFD Simulations And Imaging Experiments On Charging Of Pneumatically Conveyed Powders
Author(s) Koorevaar, M.W.; Padding, J.T.; Wang, J.; Wit, M. de; Schutyser, M.A.I.; Hoef, M.A. van der; Kuipers, J.
Event SINTEF CFD 2014, Trondheim, Norway, 2014-06-17/2014-06-19
Department(s) Food Process Engineering
Environmental Technology
Publication type Abstract in scientific journal or proceedings
Publication year 2014
Abstract As the world population increases, the demand for food increases as well. This urges the production of (enriched) food to become more energy efficient in order to have a sustainable situation. A possible approach is to switch to separation techniques that do not require water. One such a method is tribo-electric separation where the driving force for separation is the different polarity and/or magnitude acquired by different fractions due to contact charging (also known as tribo-electric charging or tribo-electrification). Contact charging occurs always when objects of different material touch; the magnitude and polarity is a property of the combination of the two touching materials. Consequently, the method is suitable to separate mixtures in which the components have sufficiently different charging characteristics. Many configurations are possible to utilize contact charging to charge powders. Here we investigate pneumatic conveying of powder through a metal duct; while traveling through the duct, particles will hit the walls and acquire charge. As the experimental set-up is such that optical access is possible, Digital Image Analysis is performed on the duct. From this, the particle distribution in the can be determined. The results show the same trend as predicted by our simulations.
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