The effect of tip curvature on the prebreakdown streamer structure in cyclohexane

Yamashita, H.; Yamazawa, K.; Wang, Y.S.

doi:10.1109/94.689429

Cited by 38 publications

(25 citation statements)

References 22 publications

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“…Fig. 2 shows that the results of this analysis are in good agreement with [3]. To clarify the relationship between the field distribution and tip radius at streamer initiation, a more precise analysis is needed of the field distribution near the tip.…”

Section: Resultssupporting

confidence: 72%

“…In both [2] and [3], the variations of initiation voltage with changes in geometry were reported. To obtain greater consistency, the electric field distributions with the geometries from [3,4] were calculated assuming no variation in the azimuthal direction in cylindrical coordinates. The positive streamer case of [3] is analyzed to show its consistency with [4].…”

Section: Resultsmentioning

confidence: 99%

“…To obtain greater consistency, the electric field distributions with the geometries from [3,4] were calculated assuming no variation in the azimuthal direction in cylindrical coordinates. The positive streamer case of [3] is analyzed to show its consistency with [4]. Tip radius is different in the two experiments.…”

Section: Resultsmentioning

confidence: 99%

“…Previous studies [1][2][3][4] of electric breakdown in dielectric liquids in positive-point point-plane geometry have shown that the initiation voltage for a prebreakdown streamer is a function of both tip radius and gap spacing. The initiation of electrical breakdown under these conditions in an insulating liquid is expected to be an electron-dominated process.…”

Section: Introductionmentioning

confidence: 99%

“…To test this hypothesis, the electric fields of previous works [3,4] are analyzed with the boundary element method to generate more precise values than analytic solutions, which require an approximation of the geometry for a closed-form solution.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

The incipient mode of streamers in a dielectric liquid as a function of electric field

Kim

Reedy

Hebner

IEEE International Conference on Dielectric Liquids, 2005. ICDL 2005.

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Many previous studies of electric breakdowns in dielectric liquids in point-plane geometry have examined the relationships among the breakdown structure (or speed) and the electrode geometry (point radius, gap length) and/or voltage. This paper explores the hypothesis that the electric field, not the geometry per se, is the determining factor in the incipient streamer structure in dielectric liquids. This work extends earlier work and explores the extent to which the processes that determine initiation and growth are similar. This paper makes it explicit that geometry and voltage are indirect factors in the prebreakdown process, important only insofar as they determine the electric field in the liquid.

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Section: Resultssupporting

confidence: 72%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

The incipient mode of streamers in a dielectric liquid as a function of electric field

Kim

Reedy

Hebner

IEEE International Conference on Dielectric Liquids, 2005. ICDL 2005.

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Prebreakdown and Breakdown Phenomena in Ester Dielectric Liquids

Rózga¹,

Jayasree²,

Rao³

et al. 2021

Alternative Liquid Dielectrics for High Voltage Transformer Insulation Systems

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Ignition of Nanocomposite Thermites by Electric Spark and Shock Wave

Shaw

Dlott

Williams

et al. 2014

Propellants Explo Pyrotec

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Nanocomposite 8Al ⋅ MoO3 thermite particles were prepared using arrested reactive milling and ignited using two experimental techniques. In spark ignition, a monolayer of powder was placed on a conductive substrate and heated in air by a pulsed electrostatic discharge. In shock ignition, an individual particle was targeted by a miniature, laser‐driven flyer plate accelerated to a speed in the range of 0.5–2 km s−1. In both experiments, time‐dependent optical emission produced by the ignited material was monitored and recorded. The heating rates achieved in the present experiments are on the order of 109−–1011 K s−1. These ignition methods result in a very fast combustion with characteristic burn times reduced by 1–3 orders of magnitude compared to the burn times measured previously for the same material ignited in the CO2 laser beam, where it was heated at a much lower rate of about 106−–107 K s−1. Ignition delays observed in both shock and spark ignition experiments are close to each other and vary in the range of 120–200 ns. The times of characteristic rapid increase in the optical emission of the ignited particles are also close to each other for the two experiments; however, these times are somewhat shorter (less than one μs) for the spark ignition tests compared to few μs observed for the shock initiated particles. Preliminary ideas enabling one to interpret the present results are discussed. This work establishes an approach for systematic studies of high rate ignition and respective combustion of nanocomposite reactive materials.

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The effect of tip curvature on the prebreakdown streamer structure in cyclohexane

Cited by 38 publications

References 22 publications

The incipient mode of streamers in a dielectric liquid as a function of electric field

The incipient mode of streamers in a dielectric liquid as a function of electric field

Prebreakdown and Breakdown Phenomena in Ester Dielectric Liquids

Ignition of Nanocomposite Thermites by Electric Spark and Shock Wave

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