“…DBDs have been studied extensively over many years [11][12][13][14] and quite sophisticated models with detailed plasma chemistry appeared recently [22,23]. Definitely, now there is an understanding of the physical mechanisms involved in the DBD operation; however, due to a large number of processes involved and incomplete knowledge of their rate constants and cross sections, there is a need to verify present kinetic models with as much experimental data as possible.…”
This paper describes the results of modeling of a dielectric barrier discharge (DBD). Filamentary structure of DBD is taken into account in the model by introducing the ratio of the cross section area of a microdischarge to the electrode area as a parameter of the model. Discharge and afterglow stages in the gas flow were studied using a zero-dimensional model for a DBD microdischarge channel. The results of modeling are compared with literature data for [O] number densities in a single pulse nanosecond discharge, and with our own measurements of ozone formation in the DBD. Measurements of ozone number density in oxygen and in mixtures of oxygen with methane served as means of validating the DBD model. The best agreement of the calculated and experimental dependences of [O 3 ] number densities on the discharge energy load was observed, when processes involving vibrationally excited ozone were accounted for together with the discharge microstructure.
“…DBDs have been studied extensively over many years [11][12][13][14] and quite sophisticated models with detailed plasma chemistry appeared recently [22,23]. Definitely, now there is an understanding of the physical mechanisms involved in the DBD operation; however, due to a large number of processes involved and incomplete knowledge of their rate constants and cross sections, there is a need to verify present kinetic models with as much experimental data as possible.…”
This paper describes the results of modeling of a dielectric barrier discharge (DBD). Filamentary structure of DBD is taken into account in the model by introducing the ratio of the cross section area of a microdischarge to the electrode area as a parameter of the model. Discharge and afterglow stages in the gas flow were studied using a zero-dimensional model for a DBD microdischarge channel. The results of modeling are compared with literature data for [O] number densities in a single pulse nanosecond discharge, and with our own measurements of ozone formation in the DBD. Measurements of ozone number density in oxygen and in mixtures of oxygen with methane served as means of validating the DBD model. The best agreement of the calculated and experimental dependences of [O 3 ] number densities on the discharge energy load was observed, when processes involving vibrationally excited ozone were accounted for together with the discharge microstructure.
“…Pm: average power in Watts, i: current applied in Ampere, u : applied voltage in Volt, T : period of discharge in seconds. Luminous efficiency LE is defined as the ratio of the light output energy to the input energy [14]. The luminous efficacy is calculated from the maximum intensity of the gas under study.…”
Section: Calculation Methods Using Argon Gasmentioning
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