Electrical Characterization of a Reverse Vortex Gliding Arc Reactor in Atmosphere

Abstract

A new kind of gliding-arc reactor was designed for this study. A shape-memory-alloy electrode controls the discharge arc movement at the start of the discharge stage, while the root of the arc shifts to the ground electrode under normal operation. Experimental results for electrical parameters (voltage and current) in air were analyzed. When the power is adjusted from 50 to 70 W, the discharge waveform is close to sinusoidal at the condition of high power supply. The voltage-versus-current relationship was studied for the Reynolds number (Re number) ranging from 1174 to 2609, current ranging from 20 to 50 mA, and electrode gaps ranging from 11 to 24 mm. There is a linear relationship between root mean square (rms) voltage and the electrode gaps and an inverse linear relationship between rms voltage and rms current.

Antimicrobial Effect of Plasma-Activated Tap Water on Staphylococcus aureus, Escherichia coli, and Candida albicans

“…In this sense, air plasma, i.e., an electrical discharge that generates high-density plasma in the air [7,29,[35][36][37], is an attractive source of low-cost and high-efficiency RONS. In this context, the forward vortex flow reactor (FVFR) emerges as a gliding arc (G arc) source that potentially has all requirements mentioned above [38,39]. Another fundamental point is the exchange of deionized or distilled water for tap water.…”

Development of a Swirl‐Induced Rotating Glow Discharge Reactor for CO2 Conversion: Fluid Dynamics and Discharge Dynamics Studies

“…[ 43 ] Similar voltage–current waveforms have been reported in the rotating nonthermal arc using air as the discharge medium. [ 43,44 ]…”

“…[43] Similar voltage-current waveforms have been reported in the rotating nonthermal arc using air as the discharge medium. [43,44] Figure 4a shows the effect of flow rate on the RMS of discharge voltage and current. It is evident that, with increasing flow rate, the RMS value of discharge voltage increases from 2.5 to 3.7 kV, whereas the RMS value of glow discharge current decreases slightly from 25 to 23 mA.…”

Characterization and Applications of Non-Magnetic Rotating Gliding Arc Reactors - A Brief Review

“…In order to overcome these drawbacks, a rotating gliding arc (RGA) reactor without magentic field [11][12][13][14][15][16][17][18][19] is developed in various research laboratories.. Characterization of RGA include determing electrical characteristic such as operational voltage, current & power [11][12][13][14][15][16][17][18][19], plasma parameters such as species temperature, species density & electron energy distribution function [19], arc dynamics including arc length, arc diameter & arc rotational frequency [20], operational characteristics such as flow rate, reactor geomertry [11][12][13][14][15][16][17][18][19] and influence of one characteristics on the other [11][12][13][14][15][16][17][18][19] to optimise or tune the performacne of the built reactor. In this paper we provide a brief review of gliding arc reactors and highlight the design and characterisation works of the existing non-magnetic rotational gliding arc reactors.…”