On the Gas Heating Mechanism for the Fast Anode Arc Reattachment in a Non-transferred Arc Plasma Torch Operating with Nitrogen Gas in the Restrike Mode.

Autores
Prevosto, Leandro; Kelly, Héctor; Mancinelli, Beatriz; Chamorro, Juan Camilo
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión aceptada
Descripción
The present work provides a detailed kinetic analysis of the time-resolved dynamics of the gas heating during the arc reattachment in nitrogen gas in order to understand the main processes leading to such a fast reattachment. The model includes gas heating due to the relaxation of the energy stored in the vibrational as well as the electronic modes of the molecules. The results show that the anode arc reattachment is essentiality a threshold process, corresponding to a reduced electric field value of E/N * 40 Td for the plasma discharge conditions considered in this work. The arc reattachment is triggered by a vibrational instability whose development requires a time of the order of 100 ls. For E/N\80–100 Td, most of the electron energy is transferred to gas heating through the mechanism of vibrational–translational relaxation. For larger values of E/N the electronic– translational energy relaxation mechanism produces a further intensification of the gas heating. The sharp increase of the gas heating rate during the last few ls of the vibrational instability give rises to a sudden transition from a diffuse (glow-like) discharge to a constricted arc with a high current density (*107 A/m2 ). This sudden increase in the current density gives rise to a new anode attachment closer to the cathode (where the voltage drop between the original arc and the anode is the largest) thus causing the decay of the old arc spot.
Fil: Prevosto, Leandro. Universidad Tecnológica Nacional. Facultad Regional Venado Tuerto. Grupo de Descargas Eléctricas. Departamento Ingeniería Electromecánica. Santa Fe; Argentina.
Fil: Kelly, Héctor. Universidad Tecnológica Nacional. Facultad Regional Venado Tuerto. Grupo de Descargas Eléctricas. Departamento Ingeniería Electromecánica. Santa Fe; Argentina.
Fil: Mancinelli, Beatriz. Universidad Tecnológica Nacional. Facultad Regional Venado Tuerto. Grupo de Descargas Eléctricas. Departamento Ingeniería Electromecánica. Santa Fe; Argentina.
Fil: Chamorro, Juan Camilo. Universidad Tecnológica nacional. Facultad Regional Venado Tuerto. Grupo de Descargas Eléctricas. Departamento Ingeniería Electromecánica. Santa Fe; Argentina.
Peer Reviewed
Fuente
Plasma Chem Plasma Process.
Materia
Anode arc reattachment.
Vibrational instability.
Fast gas heating.
Plasma torches.
Nivel de accesibilidad
acceso abierto
Condiciones de uso
2024-03-05T23:46:40Z
Repositorio
Repositorio Institucional Abierto (UTN)
Institución
Universidad Tecnológica Nacional
OAI Identificador
oai:ria.utn.edu.ar:20.500.12272/9657
Acceder
id RIAUTN_5d98e304efd2e657ee39a5d0d658190b
oai_identifier_str oai:ria.utn.edu.ar:20.500.12272/9657
network_acronym_str RIAUTN
repository_id_str a
network_name_str Repositorio Institucional Abierto (UTN)
spelling On the Gas Heating Mechanism for the Fast Anode Arc Reattachment in a Non-transferred Arc Plasma Torch Operating with Nitrogen Gas in the Restrike Mode.Prevosto, LeandroKelly, HéctorMancinelli, BeatrizChamorro, Juan CamiloAnode arc reattachment.Vibrational instability.Fast gas heating.Plasma torches.The present work provides a detailed kinetic analysis of the time-resolved dynamics of the gas heating during the arc reattachment in nitrogen gas in order to understand the main processes leading to such a fast reattachment. The model includes gas heating due to the relaxation of the energy stored in the vibrational as well as the electronic modes of the molecules. The results show that the anode arc reattachment is essentiality a threshold process, corresponding to a reduced electric field value of E/N * 40 Td for the plasma discharge conditions considered in this work. The arc reattachment is triggered by a vibrational instability whose development requires a time of the order of 100 ls. For E/N\80–100 Td, most of the electron energy is transferred to gas heating through the mechanism of vibrational–translational relaxation. For larger values of E/N the electronic– translational energy relaxation mechanism produces a further intensification of the gas heating. The sharp increase of the gas heating rate during the last few ls of the vibrational instability give rises to a sudden transition from a diffuse (glow-like) discharge to a constricted arc with a high current density (*107 A/m2 ). This sudden increase in the current density gives rise to a new anode attachment closer to the cathode (where the voltage drop between the original arc and the anode is the largest) thus causing the decay of the old arc spot.Fil: Prevosto, Leandro. Universidad Tecnológica Nacional. Facultad Regional Venado Tuerto. Grupo de Descargas Eléctricas. Departamento Ingeniería Electromecánica. Santa Fe; Argentina.Fil: Kelly, Héctor. Universidad Tecnológica Nacional. Facultad Regional Venado Tuerto. Grupo de Descargas Eléctricas. Departamento Ingeniería Electromecánica. Santa Fe; Argentina.Fil: Mancinelli, Beatriz. Universidad Tecnológica Nacional. Facultad Regional Venado Tuerto. Grupo de Descargas Eléctricas. Departamento Ingeniería Electromecánica. Santa Fe; Argentina.Fil: Chamorro, Juan Camilo. Universidad Tecnológica nacional. Facultad Regional Venado Tuerto. Grupo de Descargas Eléctricas. Departamento Ingeniería Electromecánica. Santa Fe; Argentina.Peer Reviewed2024-03-05T23:46:40Z2024-03-05T23:46:40Z2015info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articulopdfapplication/pdfPlasma Chem Plasma Processhttp://hdl.handle.net/20.500.12272/965710.1007/s11090-015-9644-7Plasma Chem Plasma Process.reponame:Repositorio Institucional Abierto (UTN)instname:Universidad Tecnológica NacionalengSpringer Science+Business Media New York 2015.info:eu-repo/semantics/openAccess2024-03-05T23:46:40Zhttp://creativecommons.org/licenses/by-nc-nd/4.0/Attribution-NonCommercial-NoDerivatives 4.0 InternacionalPrevosto, Leandro.Creative Commons http://creativecommons.org/licenses/by-nc-nd/4.0/ Attribution-NonCommercial-NoDerivatives 4.0 Internacional Este trabajo puede ser utilizado con fines académicos y de estudio.2026-10-01T11:56:36Zoai:ria.utn.edu.ar:20.500.12272/9657instacron: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:a2026-10-01 11:56:37.228Repositorio Institucional Abierto (UTN) - Universidad Tecnológica Nacionalfalse
dc.title.none.fl_str_mv On the Gas Heating Mechanism for the Fast Anode Arc Reattachment in a Non-transferred Arc Plasma Torch Operating with Nitrogen Gas in the Restrike Mode.
title On the Gas Heating Mechanism for the Fast Anode Arc Reattachment in a Non-transferred Arc Plasma Torch Operating with Nitrogen Gas in the Restrike Mode.
spellingShingle On the Gas Heating Mechanism for the Fast Anode Arc Reattachment in a Non-transferred Arc Plasma Torch Operating with Nitrogen Gas in the Restrike Mode.
Prevosto, Leandro
Anode arc reattachment.
Vibrational instability.
Fast gas heating.
Plasma torches.
title_short On the Gas Heating Mechanism for the Fast Anode Arc Reattachment in a Non-transferred Arc Plasma Torch Operating with Nitrogen Gas in the Restrike Mode.
title_full On the Gas Heating Mechanism for the Fast Anode Arc Reattachment in a Non-transferred Arc Plasma Torch Operating with Nitrogen Gas in the Restrike Mode.
title_fullStr On the Gas Heating Mechanism for the Fast Anode Arc Reattachment in a Non-transferred Arc Plasma Torch Operating with Nitrogen Gas in the Restrike Mode.
title_full_unstemmed On the Gas Heating Mechanism for the Fast Anode Arc Reattachment in a Non-transferred Arc Plasma Torch Operating with Nitrogen Gas in the Restrike Mode.
title_sort On the Gas Heating Mechanism for the Fast Anode Arc Reattachment in a Non-transferred Arc Plasma Torch Operating with Nitrogen Gas in the Restrike Mode.
dc.creator.none.fl_str_mv Prevosto, Leandro
Kelly, Héctor
Mancinelli, Beatriz
Chamorro, Juan Camilo
author Prevosto, Leandro
author_facet Prevosto, Leandro
Kelly, Héctor
Mancinelli, Beatriz
Chamorro, Juan Camilo
author_role author
author2 Kelly, Héctor
Mancinelli, Beatriz
Chamorro, Juan Camilo
author2_role author
author
author
dc.subject.none.fl_str_mv Anode arc reattachment.
Vibrational instability.
Fast gas heating.
Plasma torches.
topic Anode arc reattachment.
Vibrational instability.
Fast gas heating.
Plasma torches.
dc.description.none.fl_txt_mv The present work provides a detailed kinetic analysis of the time-resolved dynamics of the gas heating during the arc reattachment in nitrogen gas in order to understand the main processes leading to such a fast reattachment. The model includes gas heating due to the relaxation of the energy stored in the vibrational as well as the electronic modes of the molecules. The results show that the anode arc reattachment is essentiality a threshold process, corresponding to a reduced electric field value of E/N * 40 Td for the plasma discharge conditions considered in this work. The arc reattachment is triggered by a vibrational instability whose development requires a time of the order of 100 ls. For E/N\80–100 Td, most of the electron energy is transferred to gas heating through the mechanism of vibrational–translational relaxation. For larger values of E/N the electronic– translational energy relaxation mechanism produces a further intensification of the gas heating. The sharp increase of the gas heating rate during the last few ls of the vibrational instability give rises to a sudden transition from a diffuse (glow-like) discharge to a constricted arc with a high current density (*107 A/m2 ). This sudden increase in the current density gives rise to a new anode attachment closer to the cathode (where the voltage drop between the original arc and the anode is the largest) thus causing the decay of the old arc spot.
Fil: Prevosto, Leandro. Universidad Tecnológica Nacional. Facultad Regional Venado Tuerto. Grupo de Descargas Eléctricas. Departamento Ingeniería Electromecánica. Santa Fe; Argentina.
Fil: Kelly, Héctor. Universidad Tecnológica Nacional. Facultad Regional Venado Tuerto. Grupo de Descargas Eléctricas. Departamento Ingeniería Electromecánica. Santa Fe; Argentina.
Fil: Mancinelli, Beatriz. Universidad Tecnológica Nacional. Facultad Regional Venado Tuerto. Grupo de Descargas Eléctricas. Departamento Ingeniería Electromecánica. Santa Fe; Argentina.
Fil: Chamorro, Juan Camilo. Universidad Tecnológica nacional. Facultad Regional Venado Tuerto. Grupo de Descargas Eléctricas. Departamento Ingeniería Electromecánica. Santa Fe; Argentina.
Peer Reviewed
description The present work provides a detailed kinetic analysis of the time-resolved dynamics of the gas heating during the arc reattachment in nitrogen gas in order to understand the main processes leading to such a fast reattachment. The model includes gas heating due to the relaxation of the energy stored in the vibrational as well as the electronic modes of the molecules. The results show that the anode arc reattachment is essentiality a threshold process, corresponding to a reduced electric field value of E/N * 40 Td for the plasma discharge conditions considered in this work. The arc reattachment is triggered by a vibrational instability whose development requires a time of the order of 100 ls. For E/N\80–100 Td, most of the electron energy is transferred to gas heating through the mechanism of vibrational–translational relaxation. For larger values of E/N the electronic– translational energy relaxation mechanism produces a further intensification of the gas heating. The sharp increase of the gas heating rate during the last few ls of the vibrational instability give rises to a sudden transition from a diffuse (glow-like) discharge to a constricted arc with a high current density (*107 A/m2 ). This sudden increase in the current density gives rise to a new anode attachment closer to the cathode (where the voltage drop between the original arc and the anode is the largest) thus causing the decay of the old arc spot.
publishDate 2015
dc.date.none.fl_str_mv 2015
2024-03-05T23:46:40Z
2024-03-05T23:46:40Z
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv Plasma Chem Plasma Process
http://hdl.handle.net/20.500.12272/9657
10.1007/s11090-015-9644-7
identifier_str_mv Plasma Chem Plasma Process
10.1007/s11090-015-9644-7
url http://hdl.handle.net/20.500.12272/9657
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Springer Science+Business Media New York 2015.
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
2024-03-05T23:46:40Z
http://creativecommons.org/licenses/by-nc-nd/4.0/
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Prevosto, Leandro.
Creative Commons http://creativecommons.org/licenses/by-nc-nd/4.0/ Attribution-NonCommercial-NoDerivatives 4.0 Internacional Este trabajo puede ser utilizado con fines académicos y de estudio.
eu_rights_str_mv openAccess
rights_invalid_str_mv 2024-03-05T23:46:40Z
http://creativecommons.org/licenses/by-nc-nd/4.0/
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Prevosto, Leandro.
Creative Commons http://creativecommons.org/licenses/by-nc-nd/4.0/ Attribution-NonCommercial-NoDerivatives 4.0 Internacional Este trabajo puede ser utilizado con fines académicos y de estudio.
dc.format.none.fl_str_mv pdf
application/pdf
dc.source.none.fl_str_mv Plasma Chem Plasma Process.
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
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score 13.364332

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