Title
Fluid modelling of a packed bed dielectric barrier discharge plasma reactor Fluid modelling of a packed bed dielectric barrier discharge plasma reactor
Author
Faculty/Department
Faculty of Sciences. Chemistry
Publication type
article
Publication
Bristol :Institute of Physics ,
Subject
Physics
Chemistry
Source (journal)
Plasma sources science and technology / Institute of Physics. - Bristol, 1992, currens
Volume/pages
25(2016) :1 , 11 p.
ISSN
0963-0252
0963-0252
Article Reference
015002
Carrier
E-only publicatie
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
A packed bed dielectric barrier discharge plasma reactor is computationally studied with a fluid model. Two different complementary axisymmetric 2D geometries are used to mimic the intrinsic 3D problem. It is found that a packing enhances the electric field strength and electron temperature at the contact points of the dielectric material due to polarization of the beads by the applied potential. As a result, these contact points prove to be of direct importance to initiate the plasma. At low applied potential, the discharge stays at the contact points, and shows the properties of a Townsend discharge. When a high enough potential is applied, the plasma will be able to travel through the gaps in between the beads from wall to wall, forming a kind of glow discharge. Therefore, the inclusion of a so-called 'channel of voids' is indispensable in any type of packed bed modelling.
Full text (open access)
https://repository.uantwerpen.be/docman/irua/af1695/129802.pdf
E-info
https://repository.uantwerpen.be/docman/iruaauth/557228/129802.pdf
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