On the physical processes ruling an atmospheric pressure air glow discharge operating in an intermediate current regime

Autores
Prevosto, Leandro; Kelly, Héctor; Mancinelli, Beatriz; Chamorro, Juan Camilo; Cejas, Ezequiel
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Low-frequency (100 Hz), intermediate-current (50 to 200 mA) glow discharges were experimentally investigated in atmospheric pressure air between blunt copper electrodes. Voltage–current characteristics and images of the discharge for different inter-electrode distances are reported. A cathode-fall voltage close to 360V and a current density at the cathode surface of about 11 A/cm2, both independent of the discharge current, were found. The visible emissive structure of the discharge resembles to that of a typical low-pressure glow, thus suggesting a glow-like electric field distribution in the discharge. A kinetic model for the discharge ionization processes is also presented with the aim of identifying the main physical processes ruling the discharge behavior. The numerical results indicate the presence of a non-equilibrium plasma with rather high gas temperature (above 4000 K) leading to the production of components such as NO, O, and N which are usually absent in low-current glows. Hence, the ionization by electron-impact is replaced by associative ionization, which is independent of the reduced electric field. This leads to a negative current-voltage characteristic curve, in spite of the glow-like features of the discharge. On the other hand, several estimations show that the discharge seems to be stabilized by heat conduction; being thermally stable due to its reduced size. All the quoted results indicate that although this discharge regime might be considered to be close to an arc, it is still a glow discharge as demonstrated by its overall properties, supported also by the presence of thermal non-equilibrium. VC 2015 AIP Publishing LLC. [http://dx.doi.org/10.1063/1.4907661]
Fil: Prevosto, Leandro. Universidad Tecnológica Nacional Facultad Regional Venado Tuerto. Departamento Ingeniería Electromecánica. Grupo de Descargas Eléctricas; Argentina.
Fil: Kelly, Héctor. CONICET. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física. Instituto de Física del Plasma; Argentina.
Fil: Mancinelli, Beatriz. Universidad Tecnológica Nacional Facultad Regional Venado Tuerto. Departamento Ingeniería Electromecánica. Grupo de Descargas Eléctricas; Argentina.
Fil: Chamorro, Juan Camilo. Universidad Tecnológica Nacional Facultad Regional Venado Tuerto. Departamento Ingeniería Electromecánica. Grupo de Descargas Eléctricas; Argentina.
Fil: Cejas, Ezequiel. Universidad Tecnológica Nacional Facultad Regional Venado Tuerto. Departamento Ingeniería Electromecánica. Grupo de Descargas Eléctricas; Argentina.
Peer Reviewed
Materia
Physics of Plasmas
Nivel de accesibilidad
acceso abierto
Condiciones de uso
Usos no comerciales con fines educativos.
Repositorio
Repositorio Institucional Abierto (UTN)
Institución
Universidad Tecnológica Nacional
OAI Identificador
oai:ria.utn.edu.ar:20.500.12272/398
Acceder
id RIAUTN_f2983a5383f46b9a06bad7d8b1aba553
oai_identifier_str oai:ria.utn.edu.ar:20.500.12272/398
network_acronym_str RIAUTN
repository_id_str a
network_name_str Repositorio Institucional Abierto (UTN)
spelling On the physical processes ruling an atmospheric pressure air glow discharge operating in an intermediate current regimePrevosto, LeandroKelly, HéctorMancinelli, BeatrizChamorro, Juan CamiloCejas, EzequielPhysics of PlasmasLow-frequency (100 Hz), intermediate-current (50 to 200 mA) glow discharges were experimentally investigated in atmospheric pressure air between blunt copper electrodes. Voltage–current characteristics and images of the discharge for different inter-electrode distances are reported. A cathode-fall voltage close to 360V and a current density at the cathode surface of about 11 A/cm2, both independent of the discharge current, were found. The visible emissive structure of the discharge resembles to that of a typical low-pressure glow, thus suggesting a glow-like electric field distribution in the discharge. A kinetic model for the discharge ionization processes is also presented with the aim of identifying the main physical processes ruling the discharge behavior. The numerical results indicate the presence of a non-equilibrium plasma with rather high gas temperature (above 4000 K) leading to the production of components such as NO, O, and N which are usually absent in low-current glows. Hence, the ionization by electron-impact is replaced by associative ionization, which is independent of the reduced electric field. This leads to a negative current-voltage characteristic curve, in spite of the glow-like features of the discharge. On the other hand, several estimations show that the discharge seems to be stabilized by heat conduction; being thermally stable due to its reduced size. All the quoted results indicate that although this discharge regime might be considered to be close to an arc, it is still a glow discharge as demonstrated by its overall properties, supported also by the presence of thermal non-equilibrium. VC 2015 AIP Publishing LLC. [http://dx.doi.org/10.1063/1.4907661]Fil: Prevosto, Leandro. Universidad Tecnológica Nacional Facultad Regional Venado Tuerto. Departamento Ingeniería Electromecánica. Grupo de Descargas Eléctricas; Argentina.Fil: Kelly, Héctor. CONICET. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física. Instituto de Física del Plasma; Argentina.Fil: Mancinelli, Beatriz. Universidad Tecnológica Nacional Facultad Regional Venado Tuerto. Departamento Ingeniería Electromecánica. Grupo de Descargas Eléctricas; Argentina.Fil: Chamorro, Juan Camilo. Universidad Tecnológica Nacional Facultad Regional Venado Tuerto. Departamento Ingeniería Electromecánica. Grupo de Descargas Eléctricas; Argentina.Fil: Cejas, Ezequiel. Universidad Tecnológica Nacional Facultad Regional Venado Tuerto. Departamento Ingeniería Electromecánica. Grupo de Descargas Eléctricas; Argentina.Peer Reviewed2016-05-26T22:52:10Z2016-05-26T22:52:10Z2015-02-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/20.500.12272/398enghttp://dx.doi.org/10.1063/1.4907661info:eu-repo/semantics/openAccessUsos no comerciales con fines educativos.reponame:Repositorio Institucional Abierto (UTN)instname:Universidad Tecnológica Nacional2025-11-06T10:09:31Zoai:ria.utn.edu.ar:20.500.12272/398instacron:UTNInstitucionalhttp://ria.utn.edu.ar/Universidad públicaNo correspondehttp://ria.utn.edu.ar/oaigestionria@rec.utn.edu.ar; fsuarez@rec.utn.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:a2025-11-06 10:09:31.99Repositorio Institucional Abierto (UTN) - Universidad Tecnológica Nacionalfalse
dc.title.none.fl_str_mv On the physical processes ruling an atmospheric pressure air glow discharge operating in an intermediate current regime
title On the physical processes ruling an atmospheric pressure air glow discharge operating in an intermediate current regime
spellingShingle On the physical processes ruling an atmospheric pressure air glow discharge operating in an intermediate current regime
Prevosto, Leandro
Physics of Plasmas
title_short On the physical processes ruling an atmospheric pressure air glow discharge operating in an intermediate current regime
title_full On the physical processes ruling an atmospheric pressure air glow discharge operating in an intermediate current regime
title_fullStr On the physical processes ruling an atmospheric pressure air glow discharge operating in an intermediate current regime
title_full_unstemmed On the physical processes ruling an atmospheric pressure air glow discharge operating in an intermediate current regime
title_sort On the physical processes ruling an atmospheric pressure air glow discharge operating in an intermediate current regime
dc.creator.none.fl_str_mv Prevosto, Leandro
Kelly, Héctor
Mancinelli, Beatriz
Chamorro, Juan Camilo
Cejas, Ezequiel
author Prevosto, Leandro
author_facet Prevosto, Leandro
Kelly, Héctor
Mancinelli, Beatriz
Chamorro, Juan Camilo
Cejas, Ezequiel
author_role author
author2 Kelly, Héctor
Mancinelli, Beatriz
Chamorro, Juan Camilo
Cejas, Ezequiel
author2_role author
author
author
author
dc.subject.none.fl_str_mv Physics of Plasmas
topic Physics of Plasmas
dc.description.none.fl_txt_mv Low-frequency (100 Hz), intermediate-current (50 to 200 mA) glow discharges were experimentally investigated in atmospheric pressure air between blunt copper electrodes. Voltage–current characteristics and images of the discharge for different inter-electrode distances are reported. A cathode-fall voltage close to 360V and a current density at the cathode surface of about 11 A/cm2, both independent of the discharge current, were found. The visible emissive structure of the discharge resembles to that of a typical low-pressure glow, thus suggesting a glow-like electric field distribution in the discharge. A kinetic model for the discharge ionization processes is also presented with the aim of identifying the main physical processes ruling the discharge behavior. The numerical results indicate the presence of a non-equilibrium plasma with rather high gas temperature (above 4000 K) leading to the production of components such as NO, O, and N which are usually absent in low-current glows. Hence, the ionization by electron-impact is replaced by associative ionization, which is independent of the reduced electric field. This leads to a negative current-voltage characteristic curve, in spite of the glow-like features of the discharge. On the other hand, several estimations show that the discharge seems to be stabilized by heat conduction; being thermally stable due to its reduced size. All the quoted results indicate that although this discharge regime might be considered to be close to an arc, it is still a glow discharge as demonstrated by its overall properties, supported also by the presence of thermal non-equilibrium. VC 2015 AIP Publishing LLC. [http://dx.doi.org/10.1063/1.4907661]
Fil: Prevosto, Leandro. Universidad Tecnológica Nacional Facultad Regional Venado Tuerto. Departamento Ingeniería Electromecánica. Grupo de Descargas Eléctricas; Argentina.
Fil: Kelly, Héctor. CONICET. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física. Instituto de Física del Plasma; Argentina.
Fil: Mancinelli, Beatriz. Universidad Tecnológica Nacional Facultad Regional Venado Tuerto. Departamento Ingeniería Electromecánica. Grupo de Descargas Eléctricas; Argentina.
Fil: Chamorro, Juan Camilo. Universidad Tecnológica Nacional Facultad Regional Venado Tuerto. Departamento Ingeniería Electromecánica. Grupo de Descargas Eléctricas; Argentina.
Fil: Cejas, Ezequiel. Universidad Tecnológica Nacional Facultad Regional Venado Tuerto. Departamento Ingeniería Electromecánica. Grupo de Descargas Eléctricas; Argentina.
Peer Reviewed
description Low-frequency (100 Hz), intermediate-current (50 to 200 mA) glow discharges were experimentally investigated in atmospheric pressure air between blunt copper electrodes. Voltage–current characteristics and images of the discharge for different inter-electrode distances are reported. A cathode-fall voltage close to 360V and a current density at the cathode surface of about 11 A/cm2, both independent of the discharge current, were found. The visible emissive structure of the discharge resembles to that of a typical low-pressure glow, thus suggesting a glow-like electric field distribution in the discharge. A kinetic model for the discharge ionization processes is also presented with the aim of identifying the main physical processes ruling the discharge behavior. The numerical results indicate the presence of a non-equilibrium plasma with rather high gas temperature (above 4000 K) leading to the production of components such as NO, O, and N which are usually absent in low-current glows. Hence, the ionization by electron-impact is replaced by associative ionization, which is independent of the reduced electric field. This leads to a negative current-voltage characteristic curve, in spite of the glow-like features of the discharge. On the other hand, several estimations show that the discharge seems to be stabilized by heat conduction; being thermally stable due to its reduced size. All the quoted results indicate that although this discharge regime might be considered to be close to an arc, it is still a glow discharge as demonstrated by its overall properties, supported also by the presence of thermal non-equilibrium. VC 2015 AIP Publishing LLC. [http://dx.doi.org/10.1063/1.4907661]
publishDate 2015
dc.date.none.fl_str_mv 2015-02-06
2016-05-26T22:52:10Z
2016-05-26T22:52:10Z
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12272/398
url http://hdl.handle.net/20.500.12272/398
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv http://dx.doi.org/10.1063/1.4907661
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
Usos no comerciales con fines educativos.
eu_rights_str_mv openAccess
rights_invalid_str_mv Usos no comerciales con fines educativos.
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.source.none.fl_str_mv reponame:Repositorio Institucional Abierto (UTN)
instname:Universidad Tecnológica Nacional
reponame_str Repositorio Institucional Abierto (UTN)
collection Repositorio Institucional Abierto (UTN)
instname_str Universidad Tecnológica Nacional
repository.name.fl_str_mv Repositorio Institucional Abierto (UTN) - Universidad Tecnológica Nacional
repository.mail.fl_str_mv gestionria@rec.utn.edu.ar; fsuarez@rec.utn.edu.ar
_version_ 1848048250517454848
score 12.576249

Publicaciones similares