The effects of gas flow pattern on the generation of ozone in surface dielectric barrier discharge

Abstract

Ozone production utilizing surface dielectric barrier discharge (SDBD) was experimental studied for different flow patterns considering the influences of transversal flow, lateral flow and different lateral flow positions. Results show that the flow patterns have a remarkable impact on the ozone yield by affecting the uniformity and turbulence of gas flow. Meanwhile, distributing the O 2 flow rate according to the intensity of the plasma reaction would also increase the generation efficiency of SDBD for ozone production. By improving the uniformity and introducing the lateral flow to the transversal flow, the highest ozone yield was obtained in flow pattern 'F'. In this case, the ozone yield increased by 28.4% to 131 g kWh −1 from 102.8 g kWh −1 in flow pattern 'A'.

Multi-hollow surface dielectric barrier discharge: an ozone generator with flexible performance and supreme efficiency

“…Many authors [35][36][37][38][39] have calculated the total power in the discharge by integrating the product i(t)u(t) as described in equation (2), where i(t) was measured directly by Pearson current probe which, in single-shot, results in similar I -V curves (also shown in figures 4(a) and (b)).…”

“…Xie et al [39] reported a BPY of 131 g (kW h) −1 using surface DBD in oxygen. This was established at an oxygen flow of 0.9 slm, SIE 30 J L −1 (figure 10b [39]) and a concentration 6 g m −3 (approx 2800 ppm).…”

Ozone and oxygen atoms production in a dielectric barrier discharge in pure oxygen and O2/CH4 mixtures. Modeling and experiment

“…Different experimental techniques may be implemented for plasma production, but a DBD [11][12][13][14], powered by alternating current sources, is of special interest for these applications due to relative simplicity of its technical realization and the ability to be easily integrated into various gas flow configurations with a large cross section [15,16]. The most common application of a DBD is ozone production [17,18]. DBD was also studied for plasma assisted combustion [19], and a radio frequency DBD-even for singlet oxygen [20] and iodine atoms [21] production for oxygeniodine laser.…”

Ionization wave propagation and cathode sheath formation due to surface dielectric-barrier discharge sustained in pulsed mode

“…In the surface discharge case, there is at least one path along which the two electrodes may be reached through the dielectric barrier only. This concept attracts interest for a large variety of fields, including medicine [17][18][19][20][21], material processing [22][23][24], flow field control (plasma actuators) [25][26][27], aerodynamic propulsion [28][29][30][31], assisted combustion [32][33][34][35], icing control [36][37][38], ozone generation [39][40][41][42], environment [43][44][45], and agriculture [46,47], just to name a few.…”