Electrical, thermal and optical characteristics of plasma torch

Non thermal argon plasma needle at atmospheric pressure was constructed. The experimental set up was based on simple and low cost electric components that generate electrical field sufficiently high at the electrodes to ionize various gases which flow at atmospheric pressure. A high AC power supply...

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Main Author: Ali A-K. Hussain
Format: Article
Language:English
Published: University of Baghdad 2019-02-01
Series:Iraqi Journal of Physics
Subjects:
Online Access:https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/273
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author Ali A-K. Hussain
author_facet Ali A-K. Hussain
author_sort Ali A-K. Hussain
collection DOAJ
description Non thermal argon plasma needle at atmospheric pressure was constructed. The experimental set up was based on simple and low cost electric components that generate electrical field sufficiently high at the electrodes to ionize various gases which flow at atmospheric pressure. A high AC power supply was used with 9.6kV peak to peak and 33kHz frequency. The plasma was generated using two electrodes. The voltage and current discharge waveform were measured. The temperature of Ar gas plasma jet at different gas flow rate and distances from the plasma electrode was also recorded. It was found that the temperature increased with increasing frequency to reach the maximum value at 15 kHz, and that the current leading the voltage, which demonstrates the capacitive character of the discharge. The electron temperature was measured at about 0.61 eV, and we calculated the electron number density to be 4.38×1015 cm-3.
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spelling doaj.art-6adbd360ebf24261b356b2f0377e36372023-03-14T05:24:27ZengUniversity of BaghdadIraqi Journal of Physics2070-40032664-55482019-02-01132710.30723/ijp.v13i27.273Electrical, thermal and optical characteristics of plasma torchAli A-K. Hussain Non thermal argon plasma needle at atmospheric pressure was constructed. The experimental set up was based on simple and low cost electric components that generate electrical field sufficiently high at the electrodes to ionize various gases which flow at atmospheric pressure. A high AC power supply was used with 9.6kV peak to peak and 33kHz frequency. The plasma was generated using two electrodes. The voltage and current discharge waveform were measured. The temperature of Ar gas plasma jet at different gas flow rate and distances from the plasma electrode was also recorded. It was found that the temperature increased with increasing frequency to reach the maximum value at 15 kHz, and that the current leading the voltage, which demonstrates the capacitive character of the discharge. The electron temperature was measured at about 0.61 eV, and we calculated the electron number density to be 4.38×1015 cm-3. https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/273Plasma needle, argon plasma jet, cold atmospheric plasma, non thermal plasma.
spellingShingle Ali A-K. Hussain
Electrical, thermal and optical characteristics of plasma torch
Iraqi Journal of Physics
Plasma needle, argon plasma jet, cold atmospheric plasma, non thermal plasma.
title Electrical, thermal and optical characteristics of plasma torch
title_full Electrical, thermal and optical characteristics of plasma torch
title_fullStr Electrical, thermal and optical characteristics of plasma torch
title_full_unstemmed Electrical, thermal and optical characteristics of plasma torch
title_short Electrical, thermal and optical characteristics of plasma torch
title_sort electrical thermal and optical characteristics of plasma torch
topic Plasma needle, argon plasma jet, cold atmospheric plasma, non thermal plasma.
url https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/273
work_keys_str_mv AT aliakhussain electricalthermalandopticalcharacteristicsofplasmatorch