A new method for generation of synchronised capacitive sparks of low energy

Randeberg, Erlend; Olsen, W.; Eckhoff, Rolf K.

doi:10.1016/j.elstat.2005.07.001

Cited by 30 publications

(16 citation statements)

References 8 publications

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“…Because of a simple and compact design, the inductance of the discharge circuit used in the present investigations was as low as 0.095 H and the discharge duration about 0.1 s [8]. Thus, the discharges were very rapid and more dominated by the breakdown phase than for most other capacitive discharge circuits reported in the literature, probably making the energy release in the spark gap more efficient for ignition.…”

Section: Ignition Of Propane/air Mixturesmentioning

confidence: 95%

“…3. Further details about the discharge circuit and spark energy system are given by Randeberg et al [8].…”

Section: Spark Generator and Energy Measurement Systemmentioning

confidence: 99%

“…On the other hand, a new spark generator developed by Randeberg et al [8] offers the opportunity to generate capacitive sparks that can be synchronised with the dust cloud, also in the energy range below 1 mJ. This enables MIE testing similar to the conventional methods even in the <1 mJ range, down to about 0.03 mJ.…”

Section: Introductionmentioning

confidence: 96%

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Measurement of minimum ignition energies of dust clouds in the <1mJ region

Randeberg

Eckhoff

2007

Journal of Hazardous Materials

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Section: Ignition Of Propane/air Mixturesmentioning

confidence: 95%

“…3. Further details about the discharge circuit and spark energy system are given by Randeberg et al [8].…”

Section: Spark Generator and Energy Measurement Systemmentioning

confidence: 99%

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Measurement of minimum ignition energies of dust clouds in the <1mJ region

Randeberg

Eckhoff

2007

Journal of Hazardous Materials

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“…Therefore, a means of synchronization had to be incorporated into the spark generation circuit. The details of the first version of the generator developed for this purpose were published by Randeberg et al [2]. The first MIE results were presented by Randeberg and Eckhoff [3].…”

Section: Introductionmentioning

confidence: 99%

On the minimum ignition energy (MIE) for propane/air

Eckhoff

Ngo

Olsen

2010

Journal of Hazardous Materials

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“…The temporal variation of the current and the voltage indicates that the discharge behaves like a spark discharge [31][32][33][34][35][36].…”

Section: Capacitive Power Supplymentioning

confidence: 99%

Influence of the energy dissipation rate in the discharge of a plasma synthetic jet actuator

Belinger

Hardy

Barricau

et al. 2011

J. Phys. D: Appl. Phys.

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Abstract.A promising actuator for high-speed flow control, referred to as a Plasma Synthetic Jet (P.S.J), is being studied by the DMAE department of the ONERA, and the Laplace laboratory of the CNRS, in France. This actuator was inspired by the "Sparkjet" device developed by the Johns Hopkins University Applied Physics Laboratory. The PSJ, which produces a synthetic jet with high exhaust velocities, no active mechanical components and no mass flow admission, holds the promise of enabling high-speed flows to be manipulated. With this high velocity jet it is possible to reduce fluid phenomena such as transition and turbulence, thus making it possible to increase an aircraft's performance whilst at the same time reducing its environmental impact. A thermal plasma discharge was created in a micro cavity, causing the gas to be expelled. It is relevant that the velocity and momentum depend on the energy dispersed by the electric discharge. To control the frequency and energy dispersed in the plasma, the Laplace laboratory has developed two high voltage power supply systems. These allow two different types of discharge to be produced, with energy being supplied to the discharge in two different manners. In this paper, we focus on the impact of the power supply on the Plasma Synthetic Jet, and in particular on the role of the rate of energy dissipation in the discharge. In order to estimate the influence of the power supply on the machinery of the actuator, specific experimental techniques were used to investigate the electrical (voltage, current), thermal (Infra-red camera) and aerodynamic (jet duration, isentropic pressure, jet velocity) characteristics. These data sets were used to determine which of the two power supplies was more effective, thus allowing us to reach several conclusions concerning the importance of the energy dissipation rate on the PSJ actuator.1.

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A new method for generation of synchronised capacitive sparks of low energy

Cited by 30 publications

References 8 publications

Measurement of minimum ignition energies of dust clouds in the <1mJ region

Measurement of minimum ignition energies of dust clouds in the <1mJ region

On the minimum ignition energy (MIE) for propane/air

Influence of the energy dissipation rate in the discharge of a plasma synthetic jet actuator

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