On the dynamics of cutting arc plasmas: the role of the power supply ripple

The power sources used in cutting arc torches are usually poorly stabilized and have a large ripple factor. The strong oscillatory components in the voltage and arc current produce in turn, large fluctuations in the plasma quantities. Experimental observations on the dynamics of the nonequilibrium p...

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Detalles Bibliográficos
Autores principales: Prevosto, Leandro, Mancinelli, Beatriz, Kelly, Héctor
Formato: Artículo publishedVersion
Lenguaje:Inglés
Publicado: ADVANCED ELECTROMAGNETICS 2017
Materias:
cutting arc plasmas
Acceso en línea:http://hdl.handle.net/20.500.12272/2169
Aporte de:
RIA - Repositorio Institucional Abierto (UTN) de Universidad Tecnológica Nacional
id I68-R174-20.500.12272-2169
record_format dspace
institution Universidad Tecnológica Nacional
institution_str I-68
repository_str R-174
collection RIA - Repositorio Institucional Abierto (UTN)
language Inglés
topic cutting arc plasmas
spellingShingle cutting arc plasmas
Prevosto, Leandro
Mancinelli, Beatriz
Kelly, Héctor
On the dynamics of cutting arc plasmas: the role of the power supply ripple
topic_facet cutting arc plasmas
description The power sources used in cutting arc torches are usually poorly stabilized and have a large ripple factor. The strong oscillatory components in the voltage and arc current produce in turn, large fluctuations in the plasma quantities. Experimental observations on the dynamics of the nonequilibrium plasma inside the nozzle of a 30 A oxygen cutting torch with a 7 % ripple level of its power source are reported in this work. The observed electron temperature (mean value º 5400 K) shows a rms deviation º 5 % (≤ 300 K), which is of the order of the arc voltage ripple level. A considerable different situation occurs with the plasma density (mean value º 3 ´ 1019 m-3). In this case the rms deviation was º 75 %, much greater than that of the electron temperature.
format Artículo
publishedVersion
Artículo
author Prevosto, Leandro
Mancinelli, Beatriz
Kelly, Héctor
author_facet Prevosto, Leandro
Mancinelli, Beatriz
Kelly, Héctor
author_sort Prevosto, Leandro
title On the dynamics of cutting arc plasmas: the role of the power supply ripple
title_short On the dynamics of cutting arc plasmas: the role of the power supply ripple
title_full On the dynamics of cutting arc plasmas: the role of the power supply ripple
title_fullStr On the dynamics of cutting arc plasmas: the role of the power supply ripple
title_full_unstemmed On the dynamics of cutting arc plasmas: the role of the power supply ripple
title_sort on the dynamics of cutting arc plasmas: the role of the power supply ripple
publisher ADVANCED ELECTROMAGNETICS
publishDate 2017
url http://hdl.handle.net/20.500.12272/2169
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AT mancinellibeatriz onthedynamicsofcuttingarcplasmastheroleofthepowersupplyripple
AT kellyhector onthedynamicsofcuttingarcplasmastheroleofthepowersupplyripple
bdutipo_str Repositorios
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