Atmospheric pressure plasma jet in Ar and Ar/H2O mixtures: Optical emission spectroscopy and temperature measurements | Zendy

Abdollah Sarani | Zendy; Anton Nikiforov | Zendy; Christophe Leys | Zendy

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Atmospheric pressure plasma jet in Ar and Ar/H2O mixtures: Optical emission spectroscopy and temperature measurements

Author(s) -

Abdollah Sarani,

Anton Nikiforov,

Christophe Leys

Publication year - 2010

Publication title -

physics of plasmas

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.75

H-Index - 160

eISSN - 1089-7674

pISSN - 1070-664X

DOI - 10.1063/1.3439685

Subject(s) - plasma , argon , water vapor , electron temperature , atmospheric pressure , plasma parameters , analytical chemistry (journal) , emission spectrum , spectral line , plasma diagnostics , plasma cleaning , electron density , jet (fluid) , atomic physics , physics , chemistry , thermodynamics , quantum mechanics , chromatography , astronomy , meteorology

An atmospheric pressure plasma jet generated in Ar/water vapor mixtures has been investigated and the effect of water content on plasma properties has been studied. Plasma generated in Ar/water (0.05%) mixture shows higher intensity of OH radicals in emission spectra than pure argon alone. Plasma density has been estimated from current measurement and is in order of 1.5×1013 cm−3. Electron temperature has been estimated as 0.97 eV in pure Ar and it decreases with an increase in water content in plasma. The gas temperature has been determined by fitting of the experimental spectra and using the Boltzmann plot method. The gas temperature increases with the addition of water to feed gas from 620 K in pure Ar up to 1130 K for 0.76% H2O.

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