The Virial Effect—Applications for SF6 and CH4 Thermal Plasmas
A tool based on the mass action law was developed to calculate plasma compositions and thermodynamic properties for pure gases and mixtures, assuming a local thermodynamic equilibrium for pressures of up to 300 bar. The collection of the data that was necessary for tool calculation was automated by...
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| Format: | Article |
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MDPI AG
2019-03-01
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| Series: | Applied Sciences |
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| Online Access: | http://www.mdpi.com/2076-3417/9/5/929 |
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| author | Andriniaina Harry Solo Pierre Freton Jean-Jacques Gonzalez |
| author_facet | Andriniaina Harry Solo Pierre Freton Jean-Jacques Gonzalez |
| author_sort | Andriniaina Harry Solo |
| collection | DOAJ |
| description | A tool based on the mass action law was developed to calculate plasma compositions and thermodynamic properties for pure gases and mixtures, assuming a local thermodynamic equilibrium for pressures of up to 300 bar. The collection of the data that was necessary for tool calculation was automated by another tool that was written using Python, and the formats for the model were adapted directly from the NIST and JANAF websites. In order to calculate the plasma compositions for high pressures, virial correction was introduced. The influences of the parameters that were chosen to calculate the Lennard–Jones (12-6) potential were studied. The results at high pressure show the importance of virial correction for low temperatures and the dependence of the dataset used. Experimental data are necessary to determine a good dataset, and to obtain interaction potential. However, the data available in the literature were not always provided, so they are not well-adapted to a large pressure range. Due to this lack, the formulation provided by L. I. Stiel and G. Thodos (Journal of Chemical and Engineering Data, vol. 7, 1962, p. 234–236) is a good alternative when the considered pressure is not close to the critical point. The results may depend strongly on the system studied: examples using SF6 and CH4 plasma compositions are given at high pressure. |
| first_indexed | 2024-12-10T14:18:34Z |
| format | Article |
| id | doaj.art-1847c9f266314ac4aed64fe5ffb66373 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-12-10T14:18:34Z |
| publishDate | 2019-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-1847c9f266314ac4aed64fe5ffb663732022-12-22T01:45:16ZengMDPI AGApplied Sciences2076-34172019-03-019592910.3390/app9050929app9050929The Virial Effect—Applications for SF6 and CH4 Thermal PlasmasAndriniaina Harry Solo0Pierre Freton1Jean-Jacques Gonzalez2Laboratoire Plasma et Conversion d’Energie, Université de Toulouse, CNRS, INPT, UPS, 118 Route de Narbonne, F-31062 Toulouse, CEDEX 9, FranceLaboratoire Plasma et Conversion d’Energie, Université de Toulouse, CNRS, INPT, UPS, 118 Route de Narbonne, F-31062 Toulouse, CEDEX 9, FranceLaboratoire Plasma et Conversion d’Energie, Université de Toulouse, CNRS, INPT, UPS, 118 Route de Narbonne, F-31062 Toulouse, CEDEX 9, FranceA tool based on the mass action law was developed to calculate plasma compositions and thermodynamic properties for pure gases and mixtures, assuming a local thermodynamic equilibrium for pressures of up to 300 bar. The collection of the data that was necessary for tool calculation was automated by another tool that was written using Python, and the formats for the model were adapted directly from the NIST and JANAF websites. In order to calculate the plasma compositions for high pressures, virial correction was introduced. The influences of the parameters that were chosen to calculate the Lennard–Jones (12-6) potential were studied. The results at high pressure show the importance of virial correction for low temperatures and the dependence of the dataset used. Experimental data are necessary to determine a good dataset, and to obtain interaction potential. However, the data available in the literature were not always provided, so they are not well-adapted to a large pressure range. Due to this lack, the formulation provided by L. I. Stiel and G. Thodos (Journal of Chemical and Engineering Data, vol. 7, 1962, p. 234–236) is a good alternative when the considered pressure is not close to the critical point. The results may depend strongly on the system studied: examples using SF6 and CH4 plasma compositions are given at high pressure.http://www.mdpi.com/2076-3417/9/5/929plasma compositionhigh pressurevirial coefficientSF6CH4 |
| spellingShingle | Andriniaina Harry Solo Pierre Freton Jean-Jacques Gonzalez The Virial Effect—Applications for SF6 and CH4 Thermal Plasmas Applied Sciences plasma composition high pressure virial coefficient SF6 CH4 |
| title | The Virial Effect—Applications for SF6 and CH4 Thermal Plasmas |
| title_full | The Virial Effect—Applications for SF6 and CH4 Thermal Plasmas |
| title_fullStr | The Virial Effect—Applications for SF6 and CH4 Thermal Plasmas |
| title_full_unstemmed | The Virial Effect—Applications for SF6 and CH4 Thermal Plasmas |
| title_short | The Virial Effect—Applications for SF6 and CH4 Thermal Plasmas |
| title_sort | virial effect applications for sf6 and ch4 thermal plasmas |
| topic | plasma composition high pressure virial coefficient SF6 CH4 |
| url | http://www.mdpi.com/2076-3417/9/5/929 |
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