Generation of large-volume high-pressure plasma by spatiotemporal control of space charge

Generation of large-volume high-pressure plasma by spatiotemporal control of space charge

Any attempt to scale pressure and volume of nonthermal plasma usually leads to instabilities due to the formation of localized space charge. The control of the plasma is limited by the discharge geometry, type of excitation, and gas composition. This article explores the possibility of controlling t...

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Main Author: Shirshak K. Dhali
Format: Article
Language:English
Published: AIP Publishing LLC 2020-03-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/1.5143923
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spelling doaj-f555ea4897bd4fb6befa26533ad65ed22020-11-25T02:17:29ZengAIP Publishing LLCAIP Advances2158-32262020-03-01103035002035002-510.1063/1.5143923Generation of large-volume high-pressure plasma by spatiotemporal control of space chargeShirshak K. Dhali0Department of Electrical and Computer Engineering, Old Dominion University, Norfolk, Virginia 23529, USAAny attempt to scale pressure and volume of nonthermal plasma usually leads to instabilities due to the formation of localized space charge. The control of the plasma is limited by the discharge geometry, type of excitation, and gas composition. This article explores the possibility of controlling the space charge in a discharge with a spatially and temporally varying electric field. It is shown that a phase-staggered sinusoidal excitation to a set of conformal azimuthal electrodes in a cylindrical geometry leads to a traveling electric field. Simulations show that in space charge dominated transport, the charged species are dispersed both in the radial and azimuthal directions. This will lead to better control of the space charge and stable discharges near atmospheric pressures.http://dx.doi.org/10.1063/1.5143923
collection DOAJ
language English
format Article
sources DOAJ
author Shirshak K. Dhali
spellingShingle Shirshak K. Dhali
Generation of large-volume high-pressure plasma by spatiotemporal control of space charge
AIP Advances
author_facet Shirshak K. Dhali
author_sort Shirshak K. Dhali
title Generation of large-volume high-pressure plasma by spatiotemporal control of space charge
title_short Generation of large-volume high-pressure plasma by spatiotemporal control of space charge
title_full Generation of large-volume high-pressure plasma by spatiotemporal control of space charge
title_fullStr Generation of large-volume high-pressure plasma by spatiotemporal control of space charge
title_full_unstemmed Generation of large-volume high-pressure plasma by spatiotemporal control of space charge
title_sort generation of large-volume high-pressure plasma by spatiotemporal control of space charge
publisher AIP Publishing LLC
series AIP Advances
issn 2158-3226
publishDate 2020-03-01
description Any attempt to scale pressure and volume of nonthermal plasma usually leads to instabilities due to the formation of localized space charge. The control of the plasma is limited by the discharge geometry, type of excitation, and gas composition. This article explores the possibility of controlling the space charge in a discharge with a spatially and temporally varying electric field. It is shown that a phase-staggered sinusoidal excitation to a set of conformal azimuthal electrodes in a cylindrical geometry leads to a traveling electric field. Simulations show that in space charge dominated transport, the charged species are dispersed both in the radial and azimuthal directions. This will lead to better control of the space charge and stable discharges near atmospheric pressures.
url http://dx.doi.org/10.1063/1.5143923
work_keys_str_mv AT shirshakkdhali generationoflargevolumehighpressureplasmabyspatiotemporalcontrolofspacecharge
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