Features of Gaseous Mixtures Combustion Initiated by High-Current Slipping Surface Discharge

An experimental investigation of the decomposition of chlorofluorocarbons (CFCs) contained in H2 + O2 or CH4 + O2 gaseous mixtures, the combustion of which is initiated by high-current pulse slipping surface discharge, was carried out. It was found that a ternary gaseous mixture of H2 + O2 + CFC or CH4 + O2 + CFC, even with a large amount of the third component, maintains the explosion combustion property inherent in a binary H2 + O2 or CH4 + O2 mixture, based on the branched chain processes. High-efficient (near-complete) destruction of chlorine-fluorine containing substances was demonstrated. Production rate of the investigated reactor with respect to the CFC decomposition is of the order of 200 kg/h. Combustion dynamics was investigated. It was shown that initiation by slipping surface discharge combustion propagation behavior has some peculiarities that are beyond the ordinary combustion wave or detonation wave mechanisms. The observed phenomena may be attributed to the strong UV irradiated by a high-current slipping surface discharge. (Author)