Influence of substrate outgassing on the plasma properties during wood treatment in He dielectric barrier discharges at atmospheric pressure

2016 ◽  
Vol 14 (8) ◽  
pp. 1600172 ◽  
Author(s):  
Olivier Levasseur ◽  
Reetesh Kumar Gangwar ◽  
Jacopo Profili ◽  
Nicolas Naudé ◽  
Nicolas Gherardi ◽  
...  
Keyword(s):  
Atmospheric Pressure ◽  
Dielectric Barrier Discharges ◽  
Plasma Properties ◽  
Dielectric Barrier ◽  
Wood Treatment ◽  
Influence Of Substrate ◽  
Barrier Discharges

Surface Activation of the Polycarbonate in Atmospheric Pressure Plasma Generated in Air and Helium by Surface Dielectric Barrier Discharge (SDBD)

2013 ◽  
Vol 816-817 ◽  
pp. 28-32
Author(s):  
Virginia Dinca ◽  
Rodica Vladoiu ◽  
Mirela Contulov ◽  
Mirko Cernak
Keyword(s):  
Atmospheric Pressure ◽  
Low Cost ◽  
Atmospheric Pressure Plasma ◽  
Polymeric Materials ◽  
Dielectric Barrier Discharges ◽  
Plasma Properties ◽  
Dielectric Barrier ◽  
Angle Measurements ◽  
Atmospheric Plasmas ◽  
Barrier Discharges

Surface Dielectric Barrier Discharges (SDBD) plasma treatment has been performed to produce uniform atmospheric plasmas in He and in open air in order to functionalize the polycarbonate surface. SDBD is used for different application, processing especially of low-cost polymeric materials, combining the advantages of non-equilibrium plasma properties with the ease of atmospheric-pressure operation. Contact angle measurements were used to record the short-and long - term variations in wettability of treated and untreated polycarbonate sheets. The modification process was determined with hydrophilic measurements evaluated by means of the SEE system drop test.

Analysis of parameters of coaxial dielectric barrier discharges in argon flow at atmospheric pressure

2021 ◽  
Vol 129 (15) ◽  
pp. 153305
Author(s):  
Hui Li ◽  
Chengxun Yuan ◽  
Anatoly Kudryavtsev ◽  
Aleksandr Astafiev ◽  
Evgeny Bogdanov ◽  
...  
Keyword(s):  
Atmospheric Pressure ◽  
Dielectric Barrier Discharges ◽  
Dielectric Barrier ◽  
Argon Flow ◽  
Barrier Discharges

scholarly journals Gas Heating Mechanisms in Atmospheric Pressure Helium Dielectric-Barrier Discharges Driven by a kHz Power Source

2020 ◽  
Vol 10 (21) ◽  
pp. 7583
Author(s):  
Kun-Mo Lin ◽  
Kai-Cheng Wang ◽  
Yao-Sheng Chang ◽  
Shun-Yu Chuang
Keyword(s):  
Power Consumption ◽  
Joule Heating ◽  
Atmospheric Pressure ◽  
Power Efficiency ◽  
Rotational Temperature ◽  
Elastic Collision ◽  
Dielectric Barrier Discharges ◽  
Dielectric Barrier ◽  
Heating Source ◽  
Barrier Discharges

The present work investigates contributions of different heating mechanisms and power efficiency of atmospheric-pressure helium dielectric-barrier discharges (APHeDBDs) containing a small amount of N2 for temperature measurements by developing the numerical methodology combining the one-dimensional (1D) plasma fluid model (PFM) and 3D gas flow model (GFM) with simulated results validated by measurements including the discharge power consumption and temperature distribution. The discharge dynamics are modeled by the 1D PFM for evaluating the average heating source considering elastic collision, ion Joule heating, and exothermic reactions as the source term of energy equation solved in the 3D GFM. The simulated current density reaches 29 A m−2 which is close to that measured as 35 A m−2. The simulated power consumption is 2.0 W which is in good agreement with the average measured power consumption as 2.1 W. The simulated average gas temperature in the reactive zone is around 346 K which is also close to the rotational temperature determined. The analysis shows that elastic collision and ion Joule heating are dominant heating mechanisms contributing 23.9% and 65.8% to the heating source, respectively. Among ion species, N2+ and N4+ are dominant species contributing 44.1% and 50.7% to the heating source of ion Joule heating, respectively. The simulated average total heating source is around 5.6 × 105 W m−3 with the maximum reaching 3.5 × 106 W m−3 in the sheath region due to the contribution of ion Joule heating.

Decomposition of Ethane in Atmospheric-Pressure Dielectric-Barrier Discharges: Experiments

2006 ◽  
Vol 34 (6) ◽  
pp. 2526-2531 ◽  
Author(s):  
Louis A. Rosocha ◽  
Yongho Kim ◽  
Graydon K. Anderson ◽  
Jae Ok Lee ◽  
Sara Abbate
Keyword(s):  
Atmospheric Pressure ◽  
Dielectric Barrier Discharges ◽  
Dielectric Barrier ◽  
Barrier Discharges
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