Title :
Experimental characterization and numerical modeling of a wire-to-cylinder corona discharge ozonizer
Author :
Yanallah, K. ; Pontiga, F. ; Fernández-Rueda, A. ; Castellanos, A. ; Belasri, A.
Author_Institution :
Univ. de Sevilla, Sevilla
Abstract :
Ozone generation in an oxygen-fed wire-to-cylinder corona discharge ozonizer is investigated experimentally and numerically. The spatial distribution of chemical species produced in the corona discharge is obtained by means of a physico-chemical model that includes both elementary plasma processes (ionization, electron attachment and detachment, ion recombination, etc.) and chemical reactions between neutral species. The current-voltage characteristic measured in experiments is used as an input for the numerical simulation. Ozone concentration is determined by means of direct UV spectroscopy, and the effects of the gas flow rate and the anode radius are analyzed.
Keywords :
anodes; corona; electron attachment; electron detachment; ion recombination; ionisation; ozone; plasma diagnostics; plasma simulation; ultraviolet spectroscopy; O3; anode radius; direct UV spectroscopy; electron attachment; electron detachment; gas flow rate; ion recombination; ionization; ozone generation; physico-chemical model; wire-to-cylinder corona discharge ozonizer; Chemical elements; Chemical processes; Corona; Electrons; Ionization; Numerical models; Plasma chemistry; Plasma measurements; Plasma properties; Plasma simulation;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 2007. CEIDP 2007. Annual Report - Conference on
Conference_Location :
Vancouver, BC
Print_ISBN :
978-1-4244-1482-6
Electronic_ISBN :
978-1-4244-1482-6
DOI :
10.1109/CEIDP.2007.4451576
