Gas flow rate dependence of the discharge characteristics of a helium atmospheric pressure plasma jet interacting with a substrate

A helium-based atmospheric pressure plasma jet (APPJ) with various flow rates of argon gas as a variable working gas was characterized by utilizing optical emission spectroscopy (OES) alongside the plasma jet. The spectroscopic characterization was performed through plasma exposure in direct and indirect interaction with and without de-ionized (DI) water. The electron density and electron temperature, which were estimated by Stark broadening of atomic hydrogen (486.1 nm) and the Boltzmann plot, were investigated as a function of the flow rate of argon gas. The spectra obtained by OES indicate that the hydroxyl concentrations reached a maximum value in the case of direct interaction with DI water as well as upstream of the plasma jet for all cases. The relative intensities of hydroxyl were optimized by changing the flow rate of argon gas.

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Analysis of Discharge Characteristics of Cold Atmospheric Pressure Plasma Jet

IEEE Transactions on Plasma Science ◽

10.1109/tps.2021.3106792 ◽

2021 ◽

Vol 49 (9) ◽

pp. 2799-2805

Author(s):

Navin Kumar Sharma ◽

Shikha Misra ◽

Varun ◽

Ram Prakash Lamba ◽

Yaduvendra Choyal ◽

...

Keyword(s):

Atmospheric Pressure ◽

Atmospheric Pressure Plasma ◽

Plasma Jet ◽

Atmospheric Pressure Plasma Jet ◽

Discharge Characteristics ◽

Pressure Plasma ◽

Cold Atmospheric Pressure Plasma

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Study on dynamics of the influence exerted by plasma on gas flow field in non-thermal atmospheric pressure plasma jet

Physics of Plasmas ◽

10.1063/1.4954828 ◽

2016 ◽

Vol 23 (6) ◽

pp. 063523 ◽

Cited By ~ 27

Author(s):

M. Hasnain Qaisrani ◽

Yubin Xian ◽

Congyun Li ◽

Xuekai Pei ◽

Maede Ghasemi ◽

...

Keyword(s):

Flow Field ◽

Atmospheric Pressure ◽

Gas Flow ◽

Atmospheric Pressure Plasma ◽

Plasma Jet ◽

Atmospheric Pressure Plasma Jet ◽

Pressure Plasma ◽

Gas Flow Field

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A parallel hybrid numerical algorithm for simulating gas flow and gas discharge of an atmospheric-pressure plasma jet

Computer Physics Communications ◽

10.1016/j.cpc.2012.07.004 ◽

2012 ◽

Vol 183 (12) ◽

pp. 2550-2560 ◽

Cited By ~ 10

Author(s):

K.-M. Lin ◽

M.-H. Hu ◽

C.-T. Hung ◽

J.-S. Wu ◽

F.-N. Hwang ◽

...

Keyword(s):

Numerical Algorithm ◽

Atmospheric Pressure ◽

Gas Flow ◽

Atmospheric Pressure Plasma ◽

Plasma Jet ◽

Gas Discharge ◽

Atmospheric Pressure Plasma Jet ◽

Pressure Plasma ◽

Parallel Hybrid

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Influence of the nozzle head geometry on the energy flux of an atmospheric pressure plasma jet

EPJ Techniques and Instrumentation ◽

10.1140/epjti/s40485-020-00061-4 ◽

2021 ◽

Vol 8 (1) ◽

Author(s):

Thorben Kewitz ◽

Christoph Regula ◽

Maik Fröhlich ◽

Jörg Ihde ◽

Holger Kersten

Keyword(s):

Energy Flux ◽

Atmospheric Pressure ◽

Gas Flow ◽

Atmospheric Pressure Plasma ◽

Plasma Jet ◽

Atmospheric Pressure Plasma Jet ◽

Linear Dependency ◽

Pressure Plasma ◽

Flow Through ◽

Nozzle Head

AbstractThe influence of different nozzle head geometries and, therefore, the variation of the excitation and relaxation volume on the energy flux from an atmospheric pressure plasma jet to a surface have been investigated. Measurements have been performed by passive calorimetric probes under variation of the gas flow through the nozzle. The results show that the geometry of the nozzle head has a significant impact on the resulting energy flux. The relaxation volume affects the dependence of the energy flux on the gas flow. While there is no significant influence of the working gas flow on the energy flux without a relaxation volume, utilizing a relaxation volume leads to a decrease of the energy flux with increasing working gas flow. Within the analyzed parameter range, the energy flux reveals for both nozzle heads a linear dependency on the applied primary voltage.

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