Characteristics of discharge with liquid non-metallic cathode burning in air flow

The possibility of creating a steady-burning low-current discharge in an air flow at atmospheric pressure using a cathode of weakly conducting liquid (tap water) and a constant-voltage power source is presented. The experiments were carried out at currents of 100-300 mA and air flows of 5-20 slpm. Probe and spectroscopic measurements were performed to determine the plasma parameters. The discharge spectrum was simulated and the plasma composition was calculated. It was found that a nonequilibrium moist high-pressure plasma with relatively low gas temperatures (>similar to 2000 K) and substantially higher electron temperatures (>similar to 6000 K) and high electron densities (更多