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Experimental study of the modified Paschen’s law: glow discharge of Ethanol (CH3CH2OH), Methanol (CH3OH) and its mixtur

Revista mexicana de física, 2022-08, Vol.68 (4) [Peer Reviewed Journal]

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. ;ISSN: 0035-001X ;DOI: 10.31349/revmexfis.68.041502

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  • Title:
    Experimental study of the modified Paschen’s law: glow discharge of Ethanol (CH3CH2OH), Methanol (CH3OH) and its mixtur
  • Author: Palomares, J. C. ; Reyes, P.G. ; Gómez, A. ; Rodríguez, M. J. ; Torres, C. ; Vergara, J. ; Martínez, H.
  • Subjects: Physics, Multidisciplinary
  • Is Part Of: Revista mexicana de física, 2022-08, Vol.68 (4)
  • Description: Abstract A low-pressure ethanol and methanol discharge produced by a DC electric field was studied experimentally, analyzing the disruptive voltage between parallel electrodes with a circular geometry as function of pressure and distance according with the Paschen’s law, this states that the breakdown voltage is a function of the product of gas pressure and distance following the relationship: VB = ƒ(pd). Detailed knowledge of the minimum breakdown voltage required to initiate the ethanol-methanol discharge will be useful to providing important information for future experiments and applications. In this experiment, a cylindrical chamber was used to generate a glow discharge of the ethanol (CH3CH2OH), methanol (CH3OH), and 50% mixture, over a pressure range of 0.07-5.00 Torr. Optical emission spectroscopy was performed in the wavelength range of 200-900 nm. The Paschen curves, measured experimentally for ethanol and methanol are presented, taking in account the coefficient obtained using the variation in Paschen’s law as a function of the distance and radius of the electrodes (d/r).
  • Publisher: Sociedad Mexicana de Física
  • Language: Portuguese
  • Identifier: ISSN: 0035-001X
    DOI: 10.31349/revmexfis.68.041502
  • Source: SciELO
    Alma/SFX Local Collection
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