On the pulsed–pulseless mode transition of negative DC corona in atmospheric nitrogen
- 1 June 2021
- journal article
- research article
- Published by AIP Publishing in Physics of Plasmas
- Vol. 28 (6), 063505
- https://doi.org/10.1063/5.0042885
Abstract
Pulsed mode as a common phenomenon appears in many kinds of DC corona discharge, whose characteristics can be affected by some specific factors. In this paper, an important research field of pulsed mode, pulsed–pulseless mode transition, is investigated in needle–plate electrodes in nitrogen at atmospheric pressure, and we discuss the effect of external circuit, gas temperature, and associative ionization on mode transition by experiment and simulation. The external circuit coupling with plasma can make the pulseless mode be achieved when there is a balance of charge between loss by discharge and gain by source before discharge quenches. The time-averaged gas temperature remains at 700 K which is regardless of source voltage and discharge mode, so gas heating is not a critical factor for mode transition. We investigate the effect of the associative ionization involving metastable particles by comparing the results with and without associative ionization reactions in the simulation; we find that the associative ionization is vital to determine the cathode voltage, discharge current, and the concentrative shape of discharge in the pulseless mode. Finally, we compare the pulsed–pulseless mode transition in nitrogen and air to clarify the effect of specific factors that depend on electronegativity of gas.Keywords
Funding Information
- National Natural Science Foundation of China (51777164)
This publication has 42 references indexed in Scilit:
- On basic processes sustaining constricted glow discharge in longitudinal N2 flow at atmospheric pressureJournal of Physics D: Applied Physics, 2010
- Negative corona, glow and spark discharges in ambient air and transitions between themPlasma Sources Science and Technology, 2005
- The role of the field-effect emission in Trichel pulse development in air at atmospheric pressureJournal of Physics D: Applied Physics, 1997
- Simulation of corona in wire-duct electrostatic precipitator by means of the boundary element methodIEEE Transactions on Industry Applications, 1994
- Experimental confirmation of positive-streamer-like mechanism for negative corona current pulse riseJournal of Physics D: Applied Physics, 1993
- Kinetic scheme of the non-equilibrium discharge in nitrogen-oxygen mixturesPlasma Sources Science and Technology, 1992
- Theory of stepped pulses in negative corona dischargesPhysical Review A, 1985
- Pulse-Free Discharges in Negative Point-to-Plane CoronaPhysical Review B, 1952
- The Mechanism of the Trichel Pulses of Short Time Duration in AirPhysical Review B, 1952
- The Mechanism of the Negative Point to Plane Corona Near OnsetPhysical Review B, 1938