Application of Gliding Arc Discharge for Control of VOC 滑动控制VOC的电弧放电中的应用.ppt

Unipolar Injection of Charge into Quiescent Gaseous Dielectrics  Alexei V. SavelievDepartment of Mechanical and Aerospace EngineeringNorth Carolina State UniversityPresented at workshop on“ Electrostatic Atomization of Electrically Insulating Fluids: Principles and Applications”  University of Southampton, March 2, 2009 Applications of Corona Discharge Streamer Propagation and Branching Streamer Propagation and Branching DC Corona Chargers DC Corona Diffusion Chargers DC Corona Diffusion Chargers Pulsed Streamer Corona Discharge Pulsed Electrostatic Precipitators Clusters in Supercritical CO2 SCF Plasma Reactor Electron Kinetics in Supercritical CO2 Wire-in-cylinder Corona Discharge Periodic Pulsed Corona Discharge Sliding Liquid-Jet Discharge The high voltage nanosecond pulses are applied to the micro-jet Overcharged micro-jet generates corona discharge with sharp liquid electrode Application for material processing and sensors Plasma as an ignition source for engines and combustors using liquid fuels Acknowledgements Collaborators: Dr. Lawrence A. Kennedy Dr. Alexander A. Fridman Dr. Vladimir Shmelev Dr. Evgenyia Lock Dr. Ozlem Yardimci Dr. Wilson Merchan-Merchan Emiliano Giacchetti Mario Sobacchi Research support: NSF grants #9812905, #0522578 DOE grant FWP 49885 CRDF grant # RUC2-2824 Argonne National LaboratoryTexaco, Inc. Air Liquide, Inc. Innovative Energy Solutions, Inc. SCF is often referred as a cluster fluid Clusters are effectively formed near the critical point Clusters affect reaction and transport properties of SCF Clusters are crucially important for plasma breakdown mechanism Technical Approach Non-thermal plasma is initiated in supercritical carbon dioxide at pressures above 75 bar using high-voltage pulses of nanosecond duration The pulses are applied to the system of microelectrodes arranged in point-to-plane and wire-to-plane geometries The discharge and plasma parameters are studied using optical and elect