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Kinetic Modelling of Atmospheric Pressure Nitrogen Plasma

Received: 10 November 2016     Accepted: 24 March 2017     Published: 5 December 2018
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Abstract

This model describes the production and destruction mechanism of nitrogen plasma at atmospheric pressure. We have studied the mechanisms of chemical dissociation, ionization, ion conversion and recombination in nitrogen plasmas, with kinetic temperature (Tg) of the free electrons being higher than the kinetic temperature (Tg) of heavy species. Therefore, the investigation of nitrogen plasma species in a wide range of pressure from 1 Torr to 760 Torr is interesting phenomena for obtaining the equilibrium state when the nitrogen species breakdown. In order to calculate the species densities to reach thermodynamic equilibrium under various conditions, a set of chemical kinetic reactions of nitrogen under consideration have been simulated. It solves the particle balance equations for a set of interacting species. In this study 16 reactions and 4 species of Nitrogen N, N2, N+, N2+ and electron have been considered. The densities of the charged and neutral species are modeled by continuity equations which includes the relevant plasma-chemical kinetics. Nitrogen species density is guided by continuity equation where chemical processes and Arrhenius form are used to follow the change of species density over the time. To calculate the species densities over pressure, temperature and time the continuity equations of the 16 reactions for the 5 species under consideration giving their initial pressure, densities and temperatures, with the latter held constant have been solved. The variations of species densities have been investigated as a function of pressure ranging from 1 to 760 Torr. This model shows that as the pressure is increased the species densities of nitrogen plasma also increase from pressure 1 to 200 Torr and after pressure above 200 Torr the species densities become almost saturated. The change of species densities at various temperatures ranging from 2000 Kelvin to 25000 Kelvin is successfully investigated. The destruction and production rates of the nitrogen species also have been calculated within the time ranging from 0 to 19nS and it shows that the density of nitrogen plasma increases with time. In our study we have considered the gas and electron temperature as 10k Kelvin and 4eV respectively.

Published in American Journal of Modern Physics (Volume 7, Issue 5)
DOI 10.11648/j.ajmp.20180705.13
Page(s) 185-193
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2018. Published by Science Publishing Group

Keywords

Classification of Plasma, Simulation of Nitrogen Plasma, Reaction Rate and Rate Coefficient, Ionization Process, Plasma Modeling, Fluid Modeling Approach

References
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[6] Bell, A. T., in Techniques and Applications of Plasma Chemistry, eds. John R. Hollahan and Alexis T. Bell, p. 1. New York: John Wiley & Sons, 1974.
[7] http://www.plasmatreat.com/plasma-technology/plasma-processes.html
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[9] http://link.springer.com/article/10.1007/BF00903946#page-2
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    Md. Ziaur Rahman, Mohammed Mynuddin. (2018). Kinetic Modelling of Atmospheric Pressure Nitrogen Plasma. American Journal of Modern Physics, 7(5), 185-193. https://doi.org/10.11648/j.ajmp.20180705.13

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    ACS Style

    Md. Ziaur Rahman; Mohammed Mynuddin. Kinetic Modelling of Atmospheric Pressure Nitrogen Plasma. Am. J. Mod. Phys. 2018, 7(5), 185-193. doi: 10.11648/j.ajmp.20180705.13

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    AMA Style

    Md. Ziaur Rahman, Mohammed Mynuddin. Kinetic Modelling of Atmospheric Pressure Nitrogen Plasma. Am J Mod Phys. 2018;7(5):185-193. doi: 10.11648/j.ajmp.20180705.13

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  • @article{10.11648/j.ajmp.20180705.13,
      author = {Md. Ziaur Rahman and Mohammed Mynuddin},
      title = {Kinetic Modelling of Atmospheric Pressure Nitrogen Plasma},
      journal = {American Journal of Modern Physics},
      volume = {7},
      number = {5},
      pages = {185-193},
      doi = {10.11648/j.ajmp.20180705.13},
      url = {https://doi.org/10.11648/j.ajmp.20180705.13},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajmp.20180705.13},
      abstract = {This model describes the production and destruction mechanism of nitrogen plasma at atmospheric pressure. We have studied the mechanisms of chemical dissociation, ionization, ion conversion and recombination in nitrogen plasmas, with kinetic temperature (Tg) of the free electrons being higher than the kinetic temperature (Tg) of heavy species. Therefore, the investigation of nitrogen plasma species in a wide range of pressure from 1 Torr to 760 Torr is interesting phenomena for obtaining the equilibrium state when the nitrogen species breakdown. In order to calculate the species densities to reach thermodynamic equilibrium under various conditions, a set of chemical kinetic reactions of nitrogen under consideration have been simulated. It solves the particle balance equations for a set of interacting species. In this study 16 reactions and 4 species of Nitrogen N, N2, N+, N2+ and electron have been considered. The densities of the charged and neutral species are modeled by continuity equations which includes the relevant plasma-chemical kinetics. Nitrogen species density is guided by continuity equation where chemical processes and Arrhenius form are used to follow the change of species density over the time. To calculate the species densities over pressure, temperature and time the continuity equations of the 16 reactions for the 5 species under consideration giving their initial pressure, densities and temperatures, with the latter held constant have been solved. The variations of species densities have been investigated as a function of pressure ranging from 1 to 760 Torr. This model shows that as the pressure is increased the species densities of nitrogen plasma also increase from pressure 1 to 200 Torr and after pressure above 200 Torr the species densities become almost saturated. The change of species densities at various temperatures ranging from 2000 Kelvin to 25000 Kelvin is successfully investigated. The destruction and production rates of the nitrogen species also have been calculated within the time ranging from 0 to 19nS and it shows that the density of nitrogen plasma increases with time. In our study we have considered the gas and electron temperature as 10k Kelvin and 4eV respectively.},
     year = {2018}
    }
    

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  • TY  - JOUR
    T1  - Kinetic Modelling of Atmospheric Pressure Nitrogen Plasma
    AU  - Md. Ziaur Rahman
    AU  - Mohammed Mynuddin
    Y1  - 2018/12/05
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    N1  - https://doi.org/10.11648/j.ajmp.20180705.13
    DO  - 10.11648/j.ajmp.20180705.13
    T2  - American Journal of Modern Physics
    JF  - American Journal of Modern Physics
    JO  - American Journal of Modern Physics
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    PB  - Science Publishing Group
    SN  - 2326-8891
    UR  - https://doi.org/10.11648/j.ajmp.20180705.13
    AB  - This model describes the production and destruction mechanism of nitrogen plasma at atmospheric pressure. We have studied the mechanisms of chemical dissociation, ionization, ion conversion and recombination in nitrogen plasmas, with kinetic temperature (Tg) of the free electrons being higher than the kinetic temperature (Tg) of heavy species. Therefore, the investigation of nitrogen plasma species in a wide range of pressure from 1 Torr to 760 Torr is interesting phenomena for obtaining the equilibrium state when the nitrogen species breakdown. In order to calculate the species densities to reach thermodynamic equilibrium under various conditions, a set of chemical kinetic reactions of nitrogen under consideration have been simulated. It solves the particle balance equations for a set of interacting species. In this study 16 reactions and 4 species of Nitrogen N, N2, N+, N2+ and electron have been considered. The densities of the charged and neutral species are modeled by continuity equations which includes the relevant plasma-chemical kinetics. Nitrogen species density is guided by continuity equation where chemical processes and Arrhenius form are used to follow the change of species density over the time. To calculate the species densities over pressure, temperature and time the continuity equations of the 16 reactions for the 5 species under consideration giving their initial pressure, densities and temperatures, with the latter held constant have been solved. The variations of species densities have been investigated as a function of pressure ranging from 1 to 760 Torr. This model shows that as the pressure is increased the species densities of nitrogen plasma also increase from pressure 1 to 200 Torr and after pressure above 200 Torr the species densities become almost saturated. The change of species densities at various temperatures ranging from 2000 Kelvin to 25000 Kelvin is successfully investigated. The destruction and production rates of the nitrogen species also have been calculated within the time ranging from 0 to 19nS and it shows that the density of nitrogen plasma increases with time. In our study we have considered the gas and electron temperature as 10k Kelvin and 4eV respectively.
    VL  - 7
    IS  - 5
    ER  - 

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Author Information
  • Department of Civil Engineering, Dhaka International University, Dhaka, Bangladesh

  • Department of Electrical & Electronics Engineering, Georgia Southern University, Statesboro, USA

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