Theoretical analysis of ozone generation by pulsed dielectric barrier discharge in oxygen

Abstract

The use of very short high-voltage pulses combined with a dielectric layer results in high-energy electrons that dissociate oxygen molecules into atoms, which are a prerequisite for the subsequent production of ozone by collisions with oxygen molecules and third particles. The production of ozone depends on both the electrical and the physical parameters. For ozone generation by pulsed dielectric barrier discharge in oxygen, a mathematical model, which describes the relation between ozone concentration and these parameters that are of importance in its design, is developed according to dimensional analysis theory. A formula considering the ozone destruction factor is derived for predicting the characteristics of the ozone generation, within the range of the corona inception voltage to the gap breakdown voltage. The trend showing the dependence of the concentration of ozone in oxygen on these parameters generally agrees with the experimental results, thus confirming the validity of the mathematical model.

Degradation of aqueous 3,4-dichloroaniline by a novel dielectric barrier discharge plasma reactor

“…For a long time, ozone generation was the major industrial application of DBD plasma (Kimura et al 2003;Lee et al 2004;Takayama et al 2006;Wei et al 2007Wei et al , 2013. Recently, DBD plasma has been applied to pollution control, surface treatment, and ultraviolet (UV) excimer lamps (Chen et al 2009;Duan et al 2013;Guivan et al 2011;Oliveira et al 2012;Zhang et al 2004).…”

Ozone Synthesis Using Shielded Sliding Discharge: Effect of Oxygen Content and Positive versus Negative Streamer Mode

“…Statistical differences in ozone synthesis has been determined by adjustments in electrical and physical factors, such as applied voltage amplitude and duration, pulse repletion rates, interelectrode gap distance, pressure, flow rate, etc. ,− However, these parameters were constant in this comparison study of positive and negative streamers, except for the peak current and appearance of the plasma. It has been reported that most of the ozone is produced in the bright portion of the plasma channels .…”

Experimental and Theoretical Prediction of Ozone Yield by High Frequency Silent Discharge

“…Introducing equations (6)- (8) into equation (11) enables the ozone yield to be expressed as 3 (12) where the constants Dc, 2 and 3 remain to be determined. The evidence available in the literature [5,6,10,17,18,22] enables equation (11) to be simplified, since the ozone yield is proportional to V, f, L, and C, it is also inversely proportional to fr and P, hence 2 and 3 in (12) are replaced by -3 and +3 respectively, where equation 12 (13) and simplified as (14) where the value of Dc is determined by the polynomial regression techniques described later.…”

“…To use this, it is first necessary to determine the significant electrical and geometric parameters that influence the yield and then to properly formulate and weight these in a mathematical model. Useful models have recently been developed for ozone generation by pulse streamer discharge [11,14], but to date no corresponding analysis has been reported for the high frequency silent discharge.…”