Title
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Fluid modelling of a packed bed dielectric barrier discharge plasma reactor
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Author
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Abstract
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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. |
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Language
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English
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Source (journal)
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Plasma sources science and technology / Institute of Physics [Londen] - Bristol, 1992, currens
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Publication
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Bristol
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Institute of Physics
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2016
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ISSN
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0963-0252
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DOI
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10.1088/0963-0252/25/1/015002
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Volume/pages
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25
:1
(2016)
, 11 p.
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Article Reference
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015002
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ISI
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000370974800009
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Medium
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E-only publicatie
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Full text (Publisher's DOI)
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Full text (open access)
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Full text (publisher's version - intranet only)
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