Theoretical and experimental study on ozone generation characteristics of an oxygen-fed ozone generator in silent discharge

Abstract

Experimental and theoretical investigations have been carried out on the ozone generation characteristics of oxygen-fed ozone generators with various discharge gap lengths. In this paper, a new theoretical model considering the dependence of ozone dissociation rate by electron impact on the electric field strength is suggested. Assuming a stationary and uniform discharge in time and space, ozone concentrations obtained experimentally under various discharge power densities and gas pressures are well explained by this model. It is concluded that the operation under a high electric field has a potential advantage in producing high-concentration ozone efficiently because of the reduction in the population density of low-energy electrons which decompose generated ozone.

Study of Sterilization and Disinfection in Room Air by Using Atmospheric Microplasma

“…High reduced electric fields were readily obtainable with such small discharge gaps, resulting in a reduction of low energy electrons (1-2 eV), which dissociate ozone [33,34]. This microplasma electrode has the advantage of generating a high concentration of ozone with low discharge voltage and power.…”

Calculation of Ozone and NOx Production under AC Corona Discharge in Dry Air Used for Faults Diagnostic

“…In these studies, the mechanism of ozone generation in silent discharge of oxygen-fed and air-fed ozonisers are studied [5] [6]. As the main process is show as in table 1.…”

“…Here we need to note that this is just one of many mechanisms which include only the main reactions. As said in literature [5][6] the R1and R5 is the initial step involved in the formation of O 3 and NO x . It means the electron density which stands for PD capacity is a key role that influences the production of ozone and NO x .…”

“…But no intensive study is done both at home and abroad. Besides, a lot of work has been done on O 3 generation by gas discharge [5][6][7][8][9]. And many researchers study the O 3 production under different kinds of discharge.…”

Ultrashort pulsed barrier discharges and applications

“…Application of atmospheric pressure nonequilibrium plasma, now exclusively produced by APG [1][2][3] and DBD [4][5], is spreading out into various engineering fields of not only material processing, but also energy and environment due to its special advantages of forming a highly reactive plasma at almost room temperature with low energy consumption using simple reactor system under atmospheric pressure [6][7]. This review article pays special attention to a recent development of those plasmas and their applications including our own recent work.…”