Model and simulation of a capacitively coupled plasma torch array

Spencer Kuo, E. Koretzky

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Using capacitively coupled electrical discharges, an array of plasma torches powered by a single 60 Hz source are lit up simultaneously to produce a sizable dense plasma in the open air. The number of torches in the set is limited by the power handling capability of the source. The discharge voltage and current of each torch is measured for three cases of one to three torches in the array. The results determine the u-icharacteristic of the discharge which indicates that the torch is operating in a diffuse arc mode. The torch array is modeled by an equivalent circuit for simulating its operating. The simulation results of the discharge voltage and current of a torch are shown to agree well with those from the experimental measurements for the three cases. The lump circuit model is then used to carry out numerical simulations of the discharge for a broad parameter space of plasma species. An empirical dependence of the power consumption on average electron density maintained in the plasma is obtained to be (P) = 6.1 x 10-21(ne)1.9 α0.4, where a is the electron-ion recombination coefficient used as a variable parameter in the simulation.

Original languageEnglish (US)
Title of host publication30th Plasmadynamic and Lasers Conference
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9780000000002
StatePublished - 1999
Event30th Plasmadynamic and Lasers Conference, 1999 - Norfolk, United States
Duration: Jun 28 1999Jul 1 1999

Other

Other30th Plasmadynamic and Lasers Conference, 1999
CountryUnited States
CityNorfolk
Period6/28/997/1/99

Fingerprint

Plasma torches
Plasmas
Electric potential
Equivalent circuits
Carrier concentration
Light sources
Electric power utilization
Electrons
Networks (circuits)
Computer simulation
Ions
Air

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Kuo, S., & Koretzky, E. (1999). Model and simulation of a capacitively coupled plasma torch array. In 30th Plasmadynamic and Lasers Conference [AIAA-99-3727] American Institute of Aeronautics and Astronautics Inc, AIAA.

Model and simulation of a capacitively coupled plasma torch array. / Kuo, Spencer; Koretzky, E.

30th Plasmadynamic and Lasers Conference. American Institute of Aeronautics and Astronautics Inc, AIAA, 1999. AIAA-99-3727.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Kuo, S & Koretzky, E 1999, Model and simulation of a capacitively coupled plasma torch array. in 30th Plasmadynamic and Lasers Conference., AIAA-99-3727, American Institute of Aeronautics and Astronautics Inc, AIAA, 30th Plasmadynamic and Lasers Conference, 1999, Norfolk, United States, 6/28/99.
Kuo S, Koretzky E. Model and simulation of a capacitively coupled plasma torch array. In 30th Plasmadynamic and Lasers Conference. American Institute of Aeronautics and Astronautics Inc, AIAA. 1999. AIAA-99-3727
Kuo, Spencer ; Koretzky, E. / Model and simulation of a capacitively coupled plasma torch array. 30th Plasmadynamic and Lasers Conference. American Institute of Aeronautics and Astronautics Inc, AIAA, 1999.
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