Generation of large-volume high-pressure plasma by spatiotemporal control of space charge
Abstract
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.
- Publication Date:
- Research Org.:
- Old Dominion Univ., Norfolk, VA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Fusion Energy Sciences (FES)
- OSTI Identifier:
- 1603337
- Alternate Identifier(s):
- OSTI ID: 1602332
- Grant/Contract Number:
- SC0020183
- Resource Type:
- Accepted Manuscript
- Journal Name:
- AIP Advances
- Additional Journal Information:
- Journal Volume: 10; Journal Issue: 3; Related Information: AIP Advances 10, 035002 (2020); doi: 10.1063/1.5143923; Journal ID: ISSN 2158-3226
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; Non-thermal Plasma, Electrical Discharges, Rotating Electric Field, Control of Space Charge
Citation Formats
Dhali, Shirshak K. Generation of large-volume high-pressure plasma by spatiotemporal control of space charge. United States: N. p., 2020.
Web. doi:10.1063/1.5143923.
Dhali, Shirshak K. Generation of large-volume high-pressure plasma by spatiotemporal control of space charge. United States. https://doi.org/10.1063/1.5143923
Dhali, Shirshak K. Mon .
"Generation of large-volume high-pressure plasma by spatiotemporal control of space charge". United States. https://doi.org/10.1063/1.5143923. https://www.osti.gov/servlets/purl/1603337.
@article{osti_1603337,
title = {Generation of large-volume high-pressure plasma by spatiotemporal control of space charge},
author = {Dhali, Shirshak K.},
abstractNote = {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.},
doi = {10.1063/1.5143923},
journal = {AIP Advances},
number = 3,
volume = 10,
place = {United States},
year = {2020},
month = {3}
}
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