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Title
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Influence of gap size and dielectric constant of the packing material on the plasma behaviour in a packed bed DBD reactor : a fluid modelling study
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Author
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Abstract
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| A packed bed dielectric barrier discharge (DBD) was studied by means of fluid modelling, to investigate the influence of the dielectric constant of the packing on the plasma characteristics, for two different gap sizes. The electric field strength and electron temperature are much more enhanced in a microgap reactor than in a mm-gap reactor, leading to more current peaks per half-cycle, but also to non-quasineutral plasma. Increasing the dielectric constant enhances the electric field further, but only up to a certain value of dielectric constant, being 9 for a microgap and 100 for a mm-gap reactor. The enhanced electric field results in a higher electron temperature, but also lower electron density. This last one strongly affects the reaction rate. |
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Language
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English
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Source (journal)
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Plasma processes and polymers. - Weinheim
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Publication
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Weinheim
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2017
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ISSN
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1612-8850
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DOI
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10.1002/PPAP.201600129
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Volume/pages
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14
:4-5
(2017)
, 11 p.
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Article Reference
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1600129
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ISI
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000403074000010
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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 (publisher's version - intranet only)
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