Conferencia
Abstract:
In this work, an experimental study on the influence of the nozzle geometry on the physical properties of a cutting arc is reported. Ion current signals collected by an electrostatic probe sweeping across a 30 A oxygen cutting arc at 3.5 mm from the nozzle exit were registered for different nozzle lengths. The temperature and density radial profiles of the arc plasma were found in each case by an inversion procedure of these signals. A comparison between the obtained results shows that the shorter nozzle (RN = 0.50 mm, L N = 4.5 mm operated at 0.7 MPa and 35 Nl/min) produces a thinner and hotter arc than the larger nozzle (RN = 0.50 mm, LN = 9.0 mm operated at 1.1 MPa and 20 Nl/min). This behavior is attributed to the marked difference of gas flow rate due to the clogging effect. A smaller gas mass flow reduces the convective cooling at the arc border and decreases the power dissipation of the arc column, resulting in small axis temperatures. © 2009 IOP Publishing Ltd.
Registro:
| Documento: | Conferencia |
| Título: | On the influence of the nozzle length on the arc properties in a cutting torch |
| Autor: | Prevosto, L.; Kelly, H.; Risso, M.; Infante, D. |
| Filiación: | Grupo de Descargas Eléctricas, Departamento Ingeniería Electromecnica, Universidad Tecnológica Nacional, Regional Venado Tuerto, Las Heras 644, Venado Tuerto (2600), Santa Fe, Argentina Instituto de Física Del Plasma (CONICET), Departamento de Física, Facultad de Ciencias Exactas y Naturales (UBA), Ciudad Universitaria Pab. I, (1428) Buenos Aires, Argentina |
| Año: | 2009 |
| Volumen: | 166 |
| DOI: | http://dx.doi.org/10.1088/1742-6596/166/1/012021 |
| Título revista: | Journal of Physics: Conference Series |
| Título revista abreviado: | J. Phys. Conf. Ser. |
| ISSN: | 17426588 |
| PDF: | https://bibliotecadigital.exactas.uba.ar/download/paper/paper_17426588_v166_n_p_Prevosto.pdf |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_17426588_v166_n_p_Prevosto |
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Citas:
---------- APA ----------
Prevosto, L., Kelly, H., Risso, M. & Infante, D. (2009) . On the influence of the nozzle length on the arc properties in a cutting torch. Journal of Physics: Conference Series, 166.http://dx.doi.org/10.1088/1742-6596/166/1/012021
---------- CHICAGO ----------
Prevosto, L., Kelly, H., Risso, M., Infante, D. "On the influence of the nozzle length on the arc properties in a cutting torch" . Journal of Physics: Conference Series 166 (2009).http://dx.doi.org/10.1088/1742-6596/166/1/012021
---------- MLA ----------
Prevosto, L., Kelly, H., Risso, M., Infante, D. "On the influence of the nozzle length on the arc properties in a cutting torch" . Journal of Physics: Conference Series, vol. 166, 2009.http://dx.doi.org/10.1088/1742-6596/166/1/012021
---------- VANCOUVER ----------
Prevosto, L., Kelly, H., Risso, M., Infante, D. On the influence of the nozzle length on the arc properties in a cutting torch. J. Phys. Conf. Ser. 2009;166.http://dx.doi.org/10.1088/1742-6596/166/1/012021
