scholarly journals Conversion of CO2 in a gliding arc discharge reactor: Discharge characteristics and the effects of different parameters

2021 ◽  
Vol 2076 (1) ◽  
pp. 012103
Author(s):  
Tinghao Zhang ◽  
Na Lu ◽  
Kefeng Shang ◽  
Nan Jiang ◽  
Jie Li ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Power Supply ◽  
Gas Flow ◽  
Barrier Discharge ◽  
Arc Discharge ◽  
Input Voltage ◽  
Thermal Plasmas ◽  
Pulse Power Supply ◽  
Gliding Arc Discharge ◽  
Gliding Arc

Abstract In this work, a knife-shaped gliding arc discharge (GAD) reactor driven by a modulated pulse power supply was used to convert CO2. The discharge image, voltage and current waveforms of GAD were recorded experimentally. The effects of gas flow rate, input voltage, and the duty cycle of power supply on CO2 conversion were studied. A CO2 conversion of 3.8% and energy efficiency of 39.6% could be achieved. Compared with other non-thermal plasmas, GAD has a slightly lower CO2 conversion but higher energy efficiency. In addition, the capacity of CO2 treated by GAD (6 L/min) was significantly higher than other non-thermal plasmas (e.g. 25 mL/min-125 mL/min in corona discharge and dielectric barrier discharge).

Gas Flow Dependence on Dynamic Behavior of Serpentine Plasma in Gliding Arc Discharge System

2014 ◽  
Vol 42 (12) ◽  
pp. 3681-3686 ◽  
Author(s):  
Fumiaki Mitsugi ◽  
Tamiko Ohshima ◽  
Hiroharu Kawasaki ◽  
Toshiyuki Kawasaki ◽  
Shin-Ichi Aoqui ◽  
...  
Keyword(s):  
Dynamic Behavior ◽  
Gas Flow ◽  
Arc Discharge ◽  
Gliding Arc Discharge ◽  
Discharge System ◽  
Gliding Arc ◽  
Flow Dependence

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

2019 ◽  
Vol 1 (1) ◽  
pp. 31-38
Author(s):  
Ananthanarasimhan J ◽  
Lakshminarayana Rao ◽  
Anand M Shivapuji ◽  
Dasappa S
Keyword(s):  
Barrier Discharge ◽  
Arc Discharge ◽  
Plasma Reactor ◽  
High Energy ◽  
Gas Velocity ◽  
Gliding Arc Discharge ◽  
Gas Treatment ◽  
Dielectric Barrier ◽  
Gliding Arc ◽  
Chemical Selectivity

Gliding arc discharge (GAD) reactors are known for high energy efficiency and good chemical selectivity compared to non-thermal plasmas such as glow discharge, corona and dielectric barrier discharge. Reported literature identified that planar diverging GAD have non-uniform gas treatment (e.g. only 20% of gas processed by plasma depending on electrode configuration). Further requirement of minimum limit gas velocity to drag the arc results in lower gas residence time. This paper attempts to investigate the GAD performance and preliminary studies to overcome some of the identified drawbacks, by using only fluid mechanics without magnetic field (rotating gliding arc (RGA)) inside the plasma reactor developed in various research laboratories. This article discusses the applications of GAD and also focuses on bringing out the performance and comparing with the results from the existing non-magnetic rotating gliding arc reactors. The paper also summarizes results from literature in such reactor designs.

Modeling of the Temperature Distribution in Arc Discharge Plasma Reactor

2006 ◽  
Vol 9 (2) ◽  
Author(s):  
Jarosław Diatczyk ◽  
Henryka Danuta Stryczewska ◽  
Grzegorz Komarzyniec
Keyword(s):  
Temperature Distribution ◽  
Power Supply ◽  
Thermal Plasma ◽  
Discharge Plasma ◽  
Arc Discharge ◽  
Plasma Reactor ◽  
Gliding Arc Discharge ◽  
Gliding Arc ◽  
Non Thermal Plasma ◽  
Non Equilibrium

AbstractFor pollution control the non-thermal plasma seems to be the most convenient source of energetic electrons and chemically active species. In the electrical discharges the non-thermal plasma condition at atmospheric pressure can be obtained with fast gas flow through the discharge chamber volume, like in DC glow discharge or AC gliding arc discharge. The electrons temperature and its volumetric distribution is one of the fundamental parameters that should be study if we want to obtain the non-equilibrium low temperature plasma conditions in given geometry of the plasma reactor. These conditions depend on the kind of plasma gas and its velocity, geometry of the gliding arc reactor and on parameters of the power supply system. Paper presents a simplified mathematical model of the two -electrode gliding arc reactor to determine electron temperature and its distribution. Results of calculations are useful for selection of the power supply systems parameters and their design as to ensure the non-equilibrium state of gliding arc discharge plasma. Further calculations aim at three-and multielectrode reactors and three-dimension temperature distribution.

scholarly journals Effect of gas flow rate on breakdown voltage in a rotating gliding arc reactor

2021 ◽  
pp. 42-46
Author(s):  
Ananthanarasimhan J ◽  
Lakshminarayana Rao
Keyword(s):  
Breakdown Voltage ◽  
Flow Rate ◽  
Atmospheric Pressure ◽  
Gas Flow ◽  
Arc Discharge ◽  
Gliding Arc Discharge ◽  
Gas Flow Rate ◽  
Gliding Arc ◽  
Discharge Gas ◽  
Gas Medium

Understanding breakdown phenomena in rotating gliding arc discharge (RGA) is of interest to tailor them for specific applications. This work revealed that the breakdown voltage in a RGA reactor was not dictated by collisional effects i.e., change in flow rate. The observation was consistent for both the discharge gas medium argon and nitrogen. The collisional effect variation was implemented by varying the operating flow rates i.e., 5 SLPM which is transitional in nature, and 50 SLPM which is turbulent in nature having localized micro-eddies. The observation also indicated failure of Paschen law in RGA having shortest gap between the electrodes of order of mm, operated under atmospheric pressure conditions. Collisional ineffectiveness indicates possibility of streamer formation which needs to be further investigated in future. This work marks preliminary and important step towards understanding the breakdown phenomena in atmospheric RGAs operated under different flow regimes such as laminar/transitional and turbulent.

DISCHARGE CHARACTERISTICS OF GLIDING ARC PLASMA REACTOR WITH ARGON/NITROGEN

2015 ◽  
Vol 7 (1) ◽  
pp. 1316-1323 ◽  
Author(s):  
Gamal Elaragi
Keyword(s):  
Discharge Current ◽  
Atmospheric Pressure ◽  
Gas Flow ◽  
Discharge Plasma ◽  
Arc Discharge ◽  
Arc Plasma ◽  
Gliding Arc Discharge ◽  
Gas Flow Rate ◽  
Argon Gas ◽  
Gliding Arc

Gliding Arc Discharge plasma has properties of both thermal and non-thermal plasma conditions. Gliding arc discharge plasma in the atmospheric pressure with argon/nitrogen and its characteristics are described. Some experimental results about alternating current gliding arc plasma generator have been obtained. It seems that the current density strongly depends on the gas, and increased with increasing discharge current and gas flow rate. Also, the discharge current of gliding arc Discharge plasma in Nitrogengas is greater than one in Argon gas because of Nitrogen gas need to higher breakdown voltage than Argon gas. The intensity of gliding arc discharge plasma increased with increasing the gas flow rate. In addition to the oscillograms of discharge current in each case of Argon & Nitrogen were obtained. Electron temperatures of Argon and Nitrogen plasma were calculated to be 22800 K, 8400 K. The characteristics of both Argon & Nitrogen gases in atmospheric pressure were investigated like current density, electron density with flow rates (5, 10, 20, and 40) Standard Cubic foot per Hour. All the experimental results were tabulated.

scholarly journals Plasma diagnostic of gliding arc discharge at atmospheric pressure

2019 ◽  
pp. 2649-2655
Author(s):  
T. A. Hameed ◽  
S. J. Kadhem
Keyword(s):  
Electron Temperature ◽  
Electron Density ◽  
Gas Flow ◽  
Arc Discharge ◽  
Debye Length ◽  
Plasma Diagnostic ◽  
Gliding Arc Discharge ◽  
Boltzmann Plot ◽  
Flow Rates ◽  
Gliding Arc

A gliding arc discharge (GAD) with a water spray system was constructed. A non-thermal plasma, generated between two V shaped electrodes in an ambient argon driven by 100 Hz AC voltage, was investigated using optical emission spectroscopy (OES) with different gas flow rates (0.5, 1, 1.5, 2 , 2.5 , 3  1/min). Boltzmann plot method was used to calculate electron temperature (Te) and electron density (ne). The electrodes design was spectrally recognized and its Te value was about 0.588-0.863 eV, while the ne value of 6.875×1017-10.938×1017 cm-3. The results of the plasma diagnostics generated by gliding arc showed that increasing gas flow rates was associated with decreased electron temperature (Te), Debye length, and Debye Number, along with decreased electron density (ne) and plasma frequency. 

scholarly journals Analysis of the interaction between particles and gliding arc discharge in a spouted bed reactor

2019 ◽  
Vol 268 ◽  
pp. 04008
Author(s):  
Atsushi Nakajima ◽  
Satoshi Kodama ◽  
Hidetoshi Sekiguchi
Keyword(s):  
Flow Rate ◽  
Retention Time ◽  
Applied Voltage ◽  
Gas Flow ◽  
Arc Discharge ◽  
Gliding Arc Discharge ◽  
Gas Flow Rate ◽  
Spouted Bed ◽  
Gliding Arc ◽  
Contact Frequency

In this paper, the interaction between particles and gliding arcs in a spouted bed reactor combined with gliding arc discharge was investigated using a high-speed camera. Based on the images captured by the camera, we evaluated the retention time for gliding arcs, the contact frequency of particles with the gliding arc, and the passage area of the gliding arc until its disappearance. The effects of the gas flow rate; electrode angle, which is same as the cone angle of the spouted bed; and applied voltage of gliding arcs were investigated. The retention time for gliding arcs was extended by a high applied voltage, the passage area was increased at a high gas flow rate, and the contact frequency was increased by decreasing the electrode angle. The results obtained here can support the optimization of particle treatment processes in a spouted bed with gliding arc discharge.

Gliding arc discharge — Application for adhesion improvement of fibre reinforced polyester composites

2008 ◽  
Vol 202 (22-23) ◽  
pp. 5579-5582 ◽  
Author(s):  
Y. Kusano ◽  
S. Teodoru ◽  
F. Leipold ◽  
T.L. Andersen ◽  
B.F. Sørensen ◽  
...  
Keyword(s):  
Arc Discharge ◽  
Gliding Arc Discharge ◽  
Gliding Arc ◽  
Polyester Composites
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