Comparison of dielectric barrier discharge in air, nitrogen and argon at atmospheric pressure
نویسندگان
چکیده
منابع مشابه
Prediction of nested complementary pattern in argon dielectric-barrier discharge at atmospheric pressure
A two-dimensional self-consistent fluid model was employed to investigate the spatiotemporal nonlinear behavior in an argon glow-like/Townsend-like dielectric-barrier discharge (DBD) at atmospheric pressure. The discharge is characterized by a major current pulse with a residual one ahead per half cycle of the external voltage. The two current pulses are operated in glow mode, but with Townsend...
متن کاملTheoretical study of the dielectric barrier discharge at atmospheric pressure
In this paper, the progress in the theoretical study of the dielectric barrier discharge is reported. The model of the atmospheric-pressure discharge is discussed. Such effects as the oscillations of the Townsend mode of the discharge, the instability of the Townsend mode with subsequent transition to the filamentary discharge, and the stabilization of the barrier discharge by the photoemission...
متن کاملStudy of Nitrogen Dielectric Barrier Discharge at Near and Over Atmospheric Pressure by Optical Emission Spectroscopy
To achieve suitable conditions for generation and observation plasma at over-atmospheric pressures we constructed a specially adapted reactor. Plasma was generated between two parallel electrodes covered by dielectric material. Observations were made in the dynamic mode (gas flow 1.4 l/min.) and static mode at pressures form 0.8 atm. to 2 atm. (from 0.9 atm. to 1.3 atm. in static mode) in high ...
متن کاملExperimental Study of Low-Pressure Nitrogen Dielectric Barrier Discharge
The electrical and spectral characteristics of a dielectric barrier discharge (DBD) are experimentally investigated in a sealed off coaxial cylinder filled with nitrogen at a pressure of 10 mbar. The discharge is a transient diffused glow at low frequency alternating voltage (60 Hz) and changes to a filamentary mode at high frequency alternating voltage (35 kHz). In case of pulsed voltage, the ...
متن کاملSurface Treatment of PEOT/PBT (55/45) with a Dielectric Barrier Discharge in Air, Helium, Argon and Nitrogen at Medium Pressure
This work describes the surface modification of 300PEO-PEOT/PBT 55/45 thin films using a medium pressure dielectric barrier discharge system operated in argon, helium, nitrogen or dry air to improve cell-surface interactions of this established biomaterial. The first part of the paper describes the optimization of the plasma processing parameters using water contact angle goniometry. The optimi...
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ژورنال
عنوان ژورنال: Kathmandu University Journal of Science, Engineering and Technology
سال: 1970
ISSN: 1816-8752
DOI: 10.3126/kuset.v6i2.4006