Nonsteady-State Gas-Discharge Processes in Plasmatron for Combustion Sustaining and Hydrocarbon Decomposition

Low-Current Plasmatron as a Source of Nitrogen Oxide Molecules

“…Detailed investigations of the nonsteady-state discharge behavior had been carried out in [13], [14], and [47]. It had been revealed that the spatial discharge structure includes in itself a plasma column of a glow-type discharge with an anode spot and a background weakly ionized plasma plume/jet, which appears due to vortex gas flow.…”

“…With the intent of diagnostics of the current distribution over the anode surface at each instant of time, a special design of the anode nozzle was used [14]. The anode consisted of two sections A 1 and A 2 (as shown in Fig.…”

“…If the process is suppressed at the stage of the diffuse channel, we deal with a uncompleted transition from glow to spark [13], [14]. For example, the instant under consideration t 2 corresponds to the completed transition.…”

“…For instance, a corona discharge can be accompanied by the short current pulses or can be transformed into glow discharge [7]- [11]. A characteristic property of the glow discharge at a high pressure is the socalled glow-to-spark transition [9]- [14]. This means that the discharge burns in a glow regime only during a limited time, after which an accident transition to spark can occur.…”

“…Originally, the plasmatron had been proposed in our papers for sustainment of 0093-3813/$31.00 © 2012 IEEE the combustion process in air/hydrocarbon mixtures [12]- [14], [47]. In such systems, the content of nitrogen oxides in a flue gas has to be as low as possible [48]- [50].…”