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The purpose of this experimental work is to investigate the production of active species present in an atmospheric pressure DBD afterglow in high gas flow of Nitrogen. The experimental set-up here presented has been conceived for surface treatment applications in afterglow conditions. Optical emission spectroscopy (OES) is used for the analysis and characterization of the afterglow. Special attention...
The formation and propagation of ionization waves (streamers) in the filamentary mode of a barrier discharge in Nitrogen at atmospheric pressure is examined. The role of photoemission as well as of photoionization is analysed via a two dimensional finite element flux corrected transport (FEM-FCT) model. Numerical investigations show how the photoemission coefficient influences the formation and propagation...
In this paper, a "long" atmospheric pressure N2 dielectric-barrier-discharge afterglow is presented. It is a rather spectacular experiment obtained when the (under high gas flow) discharge effluents are channeled in long tubes of small diameter. The snapshots of the long afterglow are shown in pure N2 and N2-Ar afterglows. The luminosity of the afterglow denotes that active species created...
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