Effect of charging solid particles on their growth process and parameters of microwave discharge in liquid n-heptane.
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| Title: | Effect of charging solid particles on their growth process and parameters of microwave discharge in liquid n-heptane. |
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| Authors: | Lebedev, Yu A (AUTHOR) atat@ips.ac.ru, Tatarinov, A V (AUTHOR), Epstein, I L (AUTHOR) epstein@ips.ac.ru |
| Source: | Plasma Sources Science & Technology. Jun2020, Vol. 29 Issue 6, p1-12. 12p. |
| Subjects: | High-frequency discharges, Microwave plasmas, Electron distribution, Particles, Electron impact ionization, Argon plasmas, Atmospheric pressure |
| Abstract: | A zero-dimensional non-stationary model of a microwave discharge in liquid n-heptane at atmospheric pressure with continuous argon injection into the plasma region is presented. The model includes equations for the kinetics of neutral and charged plasma components, equations describing the formation and growth of solid particles from the decomposition products of n-heptane, and an equation for the microwave field strength in plasma. The description of the coagulation process takes into account the electrostatic repulsion of solid particles due to their charge. The kinetics of charged particles is described taking into account their death on the surface of negatively charged solid particles formed in plasma. To determine the coefficients of the reaction rates in mechanisms of direct electron impact, the electron energy distribution function obtained by solving the Boltzmann equation is used. Calculations have shown that the plasma quasineutrality is mainly supported by the charge of solid particles, and the electron concentration is 1–2 orders of magnitude less than the total ion concentration. An increase in the averaged microwave field was noted in comparison with the case that does not take into account charging. Charging of the solid particles does not affect the composition of the main gas-phase products, but leads to the suppression of the coagulation process for large solid particles, which leads to a change in the size distribution function of the solid particles formed in the plasma. [ABSTRACT FROM AUTHOR] |
| Copyright of Plasma Sources Science & Technology is the property of IOP Publishing and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 145521991 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Effect of charging solid particles on their growth process and parameters of microwave discharge in liquid n-heptane. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Lebedev%2C+Yu+A%22">Lebedev, Yu A</searchLink> (AUTHOR)<i> atat@ips.ac.ru</i><br /><searchLink fieldCode="AR" term="%22Tatarinov%2C+A+V%22">Tatarinov, A V</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Epstein%2C+I+L%22">Epstein, I L</searchLink> (AUTHOR)<i> epstein@ips.ac.ru</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Plasma+Sources+Science+%26+Technology%22">Plasma Sources Science & Technology</searchLink>. Jun2020, Vol. 29 Issue 6, p1-12. 12p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22High-frequency+discharges%22">High-frequency discharges</searchLink><br /><searchLink fieldCode="DE" term="%22Microwave+plasmas%22">Microwave plasmas</searchLink><br /><searchLink fieldCode="DE" term="%22Electron+distribution%22">Electron distribution</searchLink><br /><searchLink fieldCode="DE" term="%22Particles%22">Particles</searchLink><br /><searchLink fieldCode="DE" term="%22Electron+impact+ionization%22">Electron impact ionization</searchLink><br /><searchLink fieldCode="DE" term="%22Argon+plasmas%22">Argon plasmas</searchLink><br /><searchLink fieldCode="DE" term="%22Atmospheric+pressure%22">Atmospheric pressure</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: A zero-dimensional non-stationary model of a microwave discharge in liquid n-heptane at atmospheric pressure with continuous argon injection into the plasma region is presented. The model includes equations for the kinetics of neutral and charged plasma components, equations describing the formation and growth of solid particles from the decomposition products of n-heptane, and an equation for the microwave field strength in plasma. The description of the coagulation process takes into account the electrostatic repulsion of solid particles due to their charge. The kinetics of charged particles is described taking into account their death on the surface of negatively charged solid particles formed in plasma. To determine the coefficients of the reaction rates in mechanisms of direct electron impact, the electron energy distribution function obtained by solving the Boltzmann equation is used. Calculations have shown that the plasma quasineutrality is mainly supported by the charge of solid particles, and the electron concentration is 1–2 orders of magnitude less than the total ion concentration. An increase in the averaged microwave field was noted in comparison with the case that does not take into account charging. Charging of the solid particles does not affect the composition of the main gas-phase products, but leads to the suppression of the coagulation process for large solid particles, which leads to a change in the size distribution function of the solid particles formed in the plasma. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Plasma Sources Science & Technology is the property of IOP Publishing and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1088/1361-6595/ab8f76 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 12 StartPage: 1 Subjects: – SubjectFull: High-frequency discharges Type: general – SubjectFull: Microwave plasmas Type: general – SubjectFull: Electron distribution Type: general – SubjectFull: Particles Type: general – SubjectFull: Electron impact ionization Type: general – SubjectFull: Argon plasmas Type: general – SubjectFull: Atmospheric pressure Type: general Titles: – TitleFull: Effect of charging solid particles on their growth process and parameters of microwave discharge in liquid n-heptane. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Lebedev, Yu A – PersonEntity: Name: NameFull: Tatarinov, A V – PersonEntity: Name: NameFull: Epstein, I L IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 06 Text: Jun2020 Type: published Y: 2020 Identifiers: – Type: issn-print Value: 09630252 Numbering: – Type: volume Value: 29 – Type: issue Value: 6 Titles: – TitleFull: Plasma Sources Science & Technology Type: main |
| ResultId | 1 |
