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Parametric conditions for generation of stable atmospheric pressure nonthermal plasmas
conference contribution
posted on 2009-08-27, 13:14 authored by Xu-Tao Deng, Michael G. KongNonthermal plasmas generated at atmospheric pressure have recently found many applications such as surface cleaning and pollution control. One plasma generation configuration consists of two dielectrically insulated parallel plates with application of an AC voltage of several kV and several kHz. Such a plasma generating structure is very similar to many HV insulating systems and equipment and as such they share much similarity in the evolving plasma and associated plasma-structure interaction. In this contribution, we develop a one-dimensional numerical model to simulate discharge plasmas supported by such an insulated electrode structure and for simplicity we consider helium as the working gas. Assuming that the hydrodynamic approximation applies, various ionization, excitation and recombination processes are considered as sources of generation of charged particles and excited species. Boltzmann equations are then solved in conjunction with the Poisson equation. Numerical examples are then used to explore the conditions under which the induced plasma is nonthermal. Also studied is the dependence of the plasma upon frequency of the applied voltage and the pressure of the ambient gas. These correlative relationships should also be true for many insulating devices and systems
History
School
- Mechanical, Electrical and Manufacturing Engineering
Citation
DENG, X.T. and KONG, M.G., 2001. Parametric conditions for generation of stable atmospheric pressure nonthermal plasmas. IN: 2001 Annual Report Conference on Electrical Insulation and Dielectric Phenomena, 14th-17th Oct., Kitchener, Ont., Canada, pp. 677 - 680Publisher
© IEEEVersion
- VoR (Version of Record)
Publication date
2001Notes
This is a conference paper [© IEEE]. It is also available at: http://ieeexplore.ieee.org/ Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.ISBN
0780370538Language
- en