The pulsed discharge arc resistance and its functional behavior

Engel, T.G.; Donaldson, A. L.; Kristiansen, M.

doi:10.1109/27.24643

Cited by 104 publications

(51 citation statements)

References 6 publications

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“…It should be noted though, that our measurements were done during the conductive phase (i.e., after the streamer electrically connects the two electrodes), in which the spark behaves similar to an arc discharge. 23 Since the resistance of a pulsed arc also changes slightly, 24 we attempted to elucidate the time dependence of the R and L quantities by fitting portions of the entire underdamped oscillations and also by using time-dependent R and L values in the fitting process. On one hand, we have not seen systematic variation of these fit parameters within the investigated time range.…”

Section: A Electrical Resultsmentioning

confidence: 99%

“…37) and 1.3-1.9 X (Ref. 24) for the conditions studied in the present work. In Section III B 1, the plasma (spark gap) resistance was calculated to be in the range of 1.3 X-1.65 X for the conditions in our SDG.…”

Section: B Channel Expansionmentioning

confidence: 96%

“…Because of their relative simplicity, we took the expression given in Ref. 37 (based on a model developed by Rompe and Weizel) as an example and the one calculated by Barannik et al 24 Although these expressions were meant for unipolar current peaks with higher intensity (up to several kiloamps), one can use them to estimate the resistance at the first peak of the current waveform ($0.5 ls). These expressions give resistances in the range of 0.9-1.3 X (Ref.…”

Section: B Channel Expansionmentioning

confidence: 99%

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A time-resolved imaging and electrical study on a high current atmospheric pressure spark discharge

Palomares

Kohut

Galbács

et al. 2015

Journal of Applied Physics

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A time-resolved laser induced fluorescence study on the ion velocity distribution function in a Hall thruster after a fast current disruption Phys. Plasmas 16, 043504 (2009) We present a time-resolved imaging and electrical study of an atmospheric pressure spark discharge. The conditions of the present study are those used for nanoparticle generation in spark discharge generator setups. The oscillatory bipolar spark discharge was generated between two identical Cu electrodes in different configurations (cylindrical flat-end or tipped-end geometries, electrode gap from 0.5 to 4 mm), in a controlled co-axial N 2 flow, and was supplied by a high voltage capacitor. Imaging data with nanosecond time resolution were collected using an intensified CCD camera. This data were used to study the time evolution of plasma morphology, total light emission intensity, and the rate of plasma expansion. High voltage and high current probes were employed to collect electrical data about the discharge. The electrical data recorded allowed, among others, the calculation of the equivalent resistance and inductance of the circuit, estimations for the energy dissipated in the spark gap. By combining imaging and electrical data, observations could be made about the correlation of the evolution of total emitted light and the dissipated power. It was also observed that the distribution of light emission of the plasma in the spark gap is uneven, as it exhibits a "hot spot" with an oscillating position in the axial direction, in correlation with the high voltage waveform. The initial expansion rate of the cylindrical plasma front was found to be supersonic; thus, the discharge releases a strong shockwave. Finally, the results on equivalent resistance and channel expansion are comparable to those of unipolar arcs. This shows the spark discharge has a similar behavior to the arc regime during the conductive phase and until the current oscillations stop. V C 2015 AIP Publishing LLC. [http://dx

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Section: A Electrical Resultsmentioning

confidence: 99%

Section: B Channel Expansionmentioning

confidence: 96%

Section: B Channel Expansionmentioning

confidence: 99%

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A time-resolved imaging and electrical study on a high current atmospheric pressure spark discharge

Palomares

Kohut

Galbács

et al. 2015

Journal of Applied Physics

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“…In the case of spark breakdown in fluids, the transient resistance of the breakdown channel demonstrates a highly dynamic behavior, and typically decreases during a few tens/hundreds of nanoseconds from its initial, relatively high, value, to a minimum value of a few tens/hundreds of milliohms [17,18]. There are several models that describe this dynamic resistance of the spark breakdown channel as a function of time.…”

Section: A Electrical Parametersmentioning

confidence: 99%

Electrical and Acoustic Parameters of Wire-Guided Discharges in Water: Experimental Determination and Phenomenological Scaling

Timoshkin

MacGregor

Wilson

et al. 2017

IEEE Trans. Plasma Sci.

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This version is available at https://strathprints.strath.ac.uk/61585/ Strathprints is designed to allow users to access the research output of the University of Strathclyde. Unless otherwise explicitly stated on the manuscript, Copyright © and Moral Rights for the papers on this site are retained by the individual authors and/or other copyright owners. Please check the manuscript for details of any other licences that may have been applied. You may not engage in further distribution of the material for any profitmaking activities or any commercial gain. You may freely distribute both the url (https://strathprints.strath.ac.uk/) and the content of this paper for research or private study, educational, or not-for-profit purposes without prior permission or charge.Any correspondence concerning this service should be sent to the Strathprints administrator: strathprints@strath.ac.ukThe Strathprints institutional repository (https://strathprints.strath.ac.uk) is a digital archive of University of Strathclyde research outputs. It has been developed to disseminate open access research outputs, expose data about those outputs, and enable the management and persistent access to Strathclyde's intellectual output. Abstract-The present paper is focused on investigation of the electrical, hydrodynamic and acoustic parameters of underwater plasma discharges, stabilized with thin copper wires. The experimental current and acoustic waveforms have been obtained using different combinations of the circuit capacitance, charging voltage and wire length. The resistances of plasma discharges have been calculated for all combinations of electrical and topological parameters, based on the constant resistance approach. Phenomenological scaling relationships that link the plasma resistance and the total energy delivered to the plasma, the period of discharge cavity oscillation and the peak magnitude of the acoustic impulse have been obtained. These relationships can be used in optimization of the acoustic output from the wire-guided discharges for different practical applications.

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“…Engel et al 1 reviewed these calculations and compared them with the experimental results by Akiyama et al, 2 who measured the current for arcs through air at various pressures and arc lengths. The resistances for the arcs were then calculated from the current and a circuit model of the experiment.…”

Section: Introductionmentioning

confidence: 99%

Photoionization in a Numerical Simulation of a Spark Discharge in Air

Hummer¹

2016

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The pulsed discharge arc resistance and its functional behavior

Cited by 104 publications

References 6 publications

A time-resolved imaging and electrical study on a high current atmospheric pressure spark discharge

A time-resolved imaging and electrical study on a high current atmospheric pressure spark discharge

Electrical and Acoustic Parameters of Wire-Guided Discharges in Water: Experimental Determination and Phenomenological Scaling

Photoionization in a Numerical Simulation of a Spark Discharge in Air

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