Numerical modeling of the gas breakdown development in the space–charge layer inside the nozzle of a transferred arc torch

Autores
Mancinelli, Beatriz; Prevosto, Leandro; Minotti, Fernando Oscar
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Double–arcing is a phenomenon that occurs when a transferred arc, flowing inside an electrically insulated nozzle, breaks into two separate arcs: one that connects the cathode with the nozzle, and another that connects the nozzle with the anode. Experimental evidence suggests that the reason for double–arcing is a Townsend like breakdown occurring in the thin space–charge layer, which separates the plasma from the metallic nozzle, due to the high voltage drop across it. Breakdown phenomena in a gas between metallic electrodes have been extensively studied; however the present case involves breakdown of a high–temperature gas between one electrode (the nozzle) and a plasma boundary. A 1–D model of the gas breakdown development in the space–charge layer contiguous to the nozzle of a cutting arc torch operated with oxygen is reported. The dynamics of the discharge is analyzed. The kinetic scheme includes processes of ionization of heavy particles by electron impact, electron attachment, electron–ion recombination and ion–ion recombination.
Fil: Mancinelli, Beatriz. Universidad Tecnológica Nacional. Facultad Regional Venado Tuerto. Departamento Ingeniería Electromecánica. Grupo de Descargas Eléctricas. Santa Fe; Argentina.
Fil: Prevosto, Leandro. Universidad Tecnológica Nacional. Facultad Regional Venado Tuerto. Grupo de Descargas Eléctricas. Departamento Ingeniería Electromecánica. CONICET. Santa Fe; Argentina.
Fil: Minotti, Fernando Oscar. Universidad de Buenos Aires. Instituto de Física Interdisciplinaria y Aplicada. CONICET. Buenos Aires; Argentina.
Peer Reviewed
Fuente
Journal of Physics: Conference Series 370 (2012) 012035
Materia
numerical modeling
transferred arc torch
Nivel de accesibilidad
acceso abierto
Condiciones de uso
2024-06-11T17:01:10Z
Repositorio
Repositorio Institucional Abierto (UTN)
Institución
Universidad Tecnológica Nacional
OAI Identificador
oai:ria.utn.edu.ar:20.500.12272/10951
Acceder
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network_name_str Repositorio Institucional Abierto (UTN)
spelling Numerical modeling of the gas breakdown development in the space–charge layer inside the nozzle of a transferred arc torchMancinelli, BeatrizPrevosto, LeandroMinotti, Fernando Oscarnumerical modelingtransferred arc torchDouble–arcing is a phenomenon that occurs when a transferred arc, flowing inside an electrically insulated nozzle, breaks into two separate arcs: one that connects the cathode with the nozzle, and another that connects the nozzle with the anode. Experimental evidence suggests that the reason for double–arcing is a Townsend like breakdown occurring in the thin space–charge layer, which separates the plasma from the metallic nozzle, due to the high voltage drop across it. Breakdown phenomena in a gas between metallic electrodes have been extensively studied; however the present case involves breakdown of a high–temperature gas between one electrode (the nozzle) and a plasma boundary. A 1–D model of the gas breakdown development in the space–charge layer contiguous to the nozzle of a cutting arc torch operated with oxygen is reported. The dynamics of the discharge is analyzed. The kinetic scheme includes processes of ionization of heavy particles by electron impact, electron attachment, electron–ion recombination and ion–ion recombination.Fil: Mancinelli, Beatriz. Universidad Tecnológica Nacional. Facultad Regional Venado Tuerto. Departamento Ingeniería Electromecánica. Grupo de Descargas Eléctricas. Santa Fe; Argentina.Fil: Prevosto, Leandro. Universidad Tecnológica Nacional. Facultad Regional Venado Tuerto. Grupo de Descargas Eléctricas. Departamento Ingeniería Electromecánica. CONICET. Santa Fe; Argentina.Fil: Minotti, Fernando Oscar. Universidad de Buenos Aires. Instituto de Física Interdisciplinaria y Aplicada. CONICET. Buenos Aires; Argentina.Peer Reviewed2024-06-11T17:01:10Z2024-06-11T17:01:10Z2012info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articulopdfapplication/pdfJournal of Physicshttp://hdl.handle.net/20.500.12272/1095110.1088/1742-6596/370/1/012035Journal of Physics: Conference Series 370 (2012) 012035reponame:Repositorio Institucional Abierto (UTN)instname:Universidad Tecnológica Nacionalenginfo:eu-repo/semantics/openAccess2024-06-11T17:01:10Zhttp://creativecommons.org/licenses/by-nc-nd/4.0/Attribution-NonCommercial-NoDerivatives 4.0 InternacionalMancinelli, BeatrizCreative 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.2026-09-24T12:48:03Zoai:ria.utn.edu.ar:20.500.12272/10951instacron: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:a2026-09-24 12:48:05.921Repositorio Institucional Abierto (UTN) - Universidad Tecnológica Nacionalfalse
dc.title.none.fl_str_mv Numerical modeling of the gas breakdown development in the space–charge layer inside the nozzle of a transferred arc torch
title Numerical modeling of the gas breakdown development in the space–charge layer inside the nozzle of a transferred arc torch
spellingShingle Numerical modeling of the gas breakdown development in the space–charge layer inside the nozzle of a transferred arc torch
Mancinelli, Beatriz
numerical modeling
transferred arc torch
title_short Numerical modeling of the gas breakdown development in the space–charge layer inside the nozzle of a transferred arc torch
title_full Numerical modeling of the gas breakdown development in the space–charge layer inside the nozzle of a transferred arc torch
title_fullStr Numerical modeling of the gas breakdown development in the space–charge layer inside the nozzle of a transferred arc torch
title_full_unstemmed Numerical modeling of the gas breakdown development in the space–charge layer inside the nozzle of a transferred arc torch
title_sort Numerical modeling of the gas breakdown development in the space–charge layer inside the nozzle of a transferred arc torch
dc.creator.none.fl_str_mv Mancinelli, Beatriz
Prevosto, Leandro
Minotti, Fernando Oscar
author Mancinelli, Beatriz
author_facet Mancinelli, Beatriz
Prevosto, Leandro
Minotti, Fernando Oscar
author_role author
author2 Prevosto, Leandro
Minotti, Fernando Oscar
author2_role author
author
dc.subject.none.fl_str_mv numerical modeling
transferred arc torch
topic numerical modeling
transferred arc torch
dc.description.none.fl_txt_mv Double–arcing is a phenomenon that occurs when a transferred arc, flowing inside an electrically insulated nozzle, breaks into two separate arcs: one that connects the cathode with the nozzle, and another that connects the nozzle with the anode. Experimental evidence suggests that the reason for double–arcing is a Townsend like breakdown occurring in the thin space–charge layer, which separates the plasma from the metallic nozzle, due to the high voltage drop across it. Breakdown phenomena in a gas between metallic electrodes have been extensively studied; however the present case involves breakdown of a high–temperature gas between one electrode (the nozzle) and a plasma boundary. A 1–D model of the gas breakdown development in the space–charge layer contiguous to the nozzle of a cutting arc torch operated with oxygen is reported. The dynamics of the discharge is analyzed. The kinetic scheme includes processes of ionization of heavy particles by electron impact, electron attachment, electron–ion recombination and ion–ion recombination.
Fil: Mancinelli, Beatriz. Universidad Tecnológica Nacional. Facultad Regional Venado Tuerto. Departamento Ingeniería Electromecánica. Grupo de Descargas Eléctricas. Santa Fe; Argentina.
Fil: Prevosto, Leandro. Universidad Tecnológica Nacional. Facultad Regional Venado Tuerto. Grupo de Descargas Eléctricas. Departamento Ingeniería Electromecánica. CONICET. Santa Fe; Argentina.
Fil: Minotti, Fernando Oscar. Universidad de Buenos Aires. Instituto de Física Interdisciplinaria y Aplicada. CONICET. Buenos Aires; Argentina.
Peer Reviewed
description Double–arcing is a phenomenon that occurs when a transferred arc, flowing inside an electrically insulated nozzle, breaks into two separate arcs: one that connects the cathode with the nozzle, and another that connects the nozzle with the anode. Experimental evidence suggests that the reason for double–arcing is a Townsend like breakdown occurring in the thin space–charge layer, which separates the plasma from the metallic nozzle, due to the high voltage drop across it. Breakdown phenomena in a gas between metallic electrodes have been extensively studied; however the present case involves breakdown of a high–temperature gas between one electrode (the nozzle) and a plasma boundary. A 1–D model of the gas breakdown development in the space–charge layer contiguous to the nozzle of a cutting arc torch operated with oxygen is reported. The dynamics of the discharge is analyzed. The kinetic scheme includes processes of ionization of heavy particles by electron impact, electron attachment, electron–ion recombination and ion–ion recombination.
publishDate 2012
dc.date.none.fl_str_mv 2012
2024-06-11T17:01:10Z
2024-06-11T17:01:10Z
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 Journal of Physics
http://hdl.handle.net/20.500.12272/10951
10.1088/1742-6596/370/1/012035
identifier_str_mv Journal of Physics
10.1088/1742-6596/370/1/012035
url http://hdl.handle.net/20.500.12272/10951
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
2024-06-11T17:01:10Z
http://creativecommons.org/licenses/by-nc-nd/4.0/
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Mancinelli, Beatriz
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 2024-06-11T17:01:10Z
http://creativecommons.org/licenses/by-nc-nd/4.0/
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Mancinelli, Beatriz
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 Journal of Physics: Conference Series 370 (2012) 012035
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 13.265058

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