| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Macgregor, Scott
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2023Modeling of the transient electric field in multilayer dielectric composites under impulsive HV energizationcitations
- 2021The electric field inside a gas cavity formed at a solid-solid dielectric interface stressed with HV impulse
- 2020The effect of relative humidity on the flashover strength of solid insulation
- 2020Impulsive flashover characteristics and Weibull statistical analysis of gas-solid interfaces with varying relative humiditycitations
- 2018Dynamic behaviour of sub- m particles in dielectric liquids under DC stress
- 2015Decontamination of the hospital environmentcitations
- 2014The degradative effects of germicidal light on flexible endoscope material
- 2011Effect of applied field and rate of voltage rise on surface breakdown of oil-immersed polymerscitations
- 2011Mixtures of midel 7131 and THESO insulating liquids for pulsed power applicationscitations
- 2009Computer aided modelling of an interdigitated microelectrode array impedance biosensor for the detection of bacteriacitations
- 2007An investigation of spark discharge parameters for material processing with high power ultrasoundcitations
- 2006Application of electric spark generated high power ultrasound to recover ferrous and non ferrous metals from slag wastecitations
- 2001Diagnostic dielectric spectroscopy methods applied to water-treedcablecitations
Places of action
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article
An investigation of spark discharge parameters for material processing with high power ultrasound
Abstract
High power ultrasound (HPU) generated using pulsed-power techniques provides an alternative method for treating ores and minerals prior to extraction processes and for the comminution of waste materials as part of a recycling process. In an earlier publication [Wilson, M.P., Balmer, L., Given, M.J., MacGregor, S.J., Mackersie, J.W., Timoshkin, I.V., 2006. Application of electric spark generated high power ultrasound to recover ferrous and non-ferrous metals from slag waste. Minerals Engineering 19, 491–499], preliminary results using the HPU technique to treat stainless steel slag and waste bottle glass were reported. This paper describes further work performed on stainless steel slag to determine the likely energy costs associated with HPU processing. In industrial applications of HPU it is important to optimise the parameters of the high-voltage (HV) spark discharge causing the shock wave in the working liquid to maximise the efficiency of the treatment. However, because of the high intensity of the shock wave it is difficult to measure its output close to the HPU source. Experiments have therefore been performed using Pinducer sensors to measure the pressure waves produced by the source at distances relatively far from the spark discharge. These measurements made in the far field have been correlated with the electrical energy provided to the discharge and treatment rates for stainless steel slag and bottle glass obtained under identical conditions.