2-D corona field computation in configurations with ionising and non-ionising electrodes

Dumitran, Laurentiu Marius; Atten, P.; Notingher, P.; Dăscălescu, Lucian

doi:10.1016/j.elstat.2005.05.005

Cited by 19 publications

(33 citation statements)

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“…The region in which the electric forces act is widening by using a non-ionizing electrode with an ionizing electrode, dual electrode, resulting in the so called the corona-electrostatic field [7]. Several types and shapes of electrodes have been carried out experimentally to study these corona electrostatic fields, but they were very complex and expensive due to the presence of many parameters involving such fields [3,4].…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Several analytical techniques have been applied by using different numerical models for such situations based on techniques such as the charge simulation method (CSM), finite differences (FDM), finite element (FEM), and the integrated method of finite element and the method of characteristics (MOC) [7][8][9][10][11][12]. Although various computational tools are developed for electric field calculations, none of them is mutable enough to be employed for the analysis of more complicated electric field configurations.…”

Section: Introductionmentioning

confidence: 99%

“…Several types and shapes of electrodes have been carried out experimentally to study these corona electrostatic fields, but they were very complex and expensive due to the presence of many parameters involving such fields [3,4]. Besides, there was another trend to simulate the phenomena of corona charging and particle motion in electric fields in the presence of space charge by numerical model [4][5][6][7].Accurate calculations and measurements of such fields are one of the major problems facing the designers of such electrostatic applications. Several analytical techniques have been applied by using different numerical models for such situations based on techniques such as the charge simulation method (CSM), finite differences (FDM), finite element (FEM), and the integrated method of finite element and the method of characteristics (MOC) [7][8][9][10][11][12].…”

mentioning

confidence: 99%

“…Besides, there was another trend to simulate the phenomena of corona charging and particle motion in electric fields in the presence of space charge by numerical model [4][5][6][7].…”

mentioning

confidence: 99%

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Investigations of Electrostatic and Ionized Fields Analysis for Dual-Electrode System

Abouelatta

Salama

Omar

et al. 2016

IJEECS

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The paper presents the computation and measurement of electric field, in both electrostatic as well as ionized case, for dual electrode system intended for electrostatic applications. The Keywords: corona discharge, dual electrode system, linear biased probe, electric field.Copyright © 2016 Institute of Advanced Engineering and Science. All rights reserved. IntroductionThe corona discharge employed in electrostatic approaches is useful in many applications such as dust precipitation, powder spraying, or granular mixtures separation by utilizing the electric forces exerted on such charged particles [1][2][3][4][5][6]. The region in which the electric forces act is widening by using a non-ionizing electrode with an ionizing electrode, dual electrode, resulting in the so called the corona-electrostatic field [7]. Several types and shapes of electrodes have been carried out experimentally to study these corona electrostatic fields, but they were very complex and expensive due to the presence of many parameters involving such fields [3,4]. Besides, there was another trend to simulate the phenomena of corona charging and particle motion in electric fields in the presence of space charge by numerical model [4][5][6][7].Accurate calculations and measurements of such fields are one of the major problems facing the designers of such electrostatic applications. Several analytical techniques have been applied by using different numerical models for such situations based on techniques such as the charge simulation method (CSM), finite differences (FDM), finite element (FEM), and the integrated method of finite element and the method of characteristics (MOC) [7][8][9][10][11][12]. Although various computational tools are developed for electric field calculations, none of them is mutable enough to be employed for the analysis of more complicated electric field configurations.Many experiments had been carried out to measure the electric field in the presence of the ionic space charge field, but they are very complicated to get accurate measurements. The biased current probe is one of the procedures to measure the ionized electric field introduced by Tassiker [13] and then developed by selim and waters [14]. It consists of a linear biased probe and a rectangular collecting plate surrounded by a bias plates at voltage V b . The operation of the linear biased probe is as follows [15]:1. During corona discharge, the collector probe collects the current resulting from this discharge (I o ) when no bias voltage is applied to the bias plates.2. This current (I o ) is reduced to I when the bias voltage V b is applied to bias plates such that it produces a biased field that opposes the original unknown field E, so:

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

“…Besides, there was another trend to simulate the phenomena of corona charging and particle motion in electric fields in the presence of space charge by numerical model [4][5][6][7].…”

mentioning

confidence: 99%

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Investigations of Electrostatic and Ionized Fields Analysis for Dual-Electrode System

Abouelatta

Salama

Omar

et al. 2016

IJEECS

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Simulation and Experimental Study for Degradation of Organic Dyes Using Dual pin‐to‐plate Corona Discharge Plasma reactors for Industrial Wastewater Treatment

El-Tayeb

El-Shazly

Elkady

et al. 2016

Contrib. Plasma Phys.

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This work researches the possibility of increasing the dye removal efficiency from wastewater using nonthermal plasma. A study for the optimal air gap distance between dual pin and surface of Acid Blue 25 dye solution and thickness of ground plate is carried out using 3D-EM simulator to find maximum electric field intensity at the tip of both pins. The consequences display that the best gap for corona discharge is approximately 5 mm using 15 kV source. In addition, the optimum plate thickness is 0.1 mm. These distance and thickness were mentioned are constant during the study of other factors. Dual pin-to-plate high-voltage corona discharge plasma system is presented to investigation experimentally the gap distance, thickness of ground plate, initial dye concentration, pH solution and conductivity on the amount of Acid Blue 25 dye color removal efficiency from wastewater. There is a large consensus among the simulation and experimental work in the air gap and thickness of ground plate. Where the decolorization for air gap 5 mm is 95.74 at time 35 min compared with 91% and 17% for 1 mm and 20 mm gap distance respectively. Also, the discharge energy at each air gap are calculated. Measurement results for the impact of thickness of an Aluminum ground plate on color removal competence showed color removal efficiencies of 86.3%, 90.78% and 98.06%, after treatment time 15 min for thicknesses of 2, 0.5 and 0.1 mm respectively. The decolorization behavior utilizing dual pin-toplate corona discharge plasma system display 82% pigment evacuation proficiency inside 11min. The complete decolorization was accomplished within 28min for distinctive examined introductory color focuses 5 ppm up to 100 ppm. Likewise, the impacts of conductivity by utilizing diverse salts as AlCl3, CaCl2, KCl and NaCl and with distinctive focuses have been explored. The rising of the solution conductivity leads to the reduction of decolorization efficiency. The decolorization efficiency and discharge energy are calculated at different concentration molarity for AlCl3, CaCl2, KCl and NaCl. It was observed that the presence of salts at the same concentration level substantially decreased the rate and the extent of decolorization. The results indicate that the optimum pH for the decolorization of Acid Blue 25 dye is in the range between 3 and 6. Furthermore the conductivity and discharge energy were measurement at each value of pH. Energy yield for decolorization and Electrical Energy per Order (EE/O) under different initial pH value were calculated. A kinetic model is used to define the performance of corona discharge system under different value of pH. The model of pseudo -zero, pseudo-first order, and pseudo-second order reactions kinetic are utilized to investigate the decolorization of Acid Blue 25 dye. The rate of degradation of Acid Blue 25 dye follows the pseudo-first order kinetics in the dye concentration. Energy consumption requirements for decolorization was considered. The outcomes will be useful for designing the plasma treatment systems ...

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Modelling of corona discharge in cylinder-wire-plate electrode configuration

Dumitran¹,

Dăscălescu

Notingher³

et al. 2007

Journal of Electrostatics

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2-D corona field computation in configurations with ionising and non-ionising electrodes

Cited by 19 publications

References 18 publications

Investigations of Electrostatic and Ionized Fields Analysis for Dual-Electrode System

Investigations of Electrostatic and Ionized Fields Analysis for Dual-Electrode System

Simulation and Experimental Study for Degradation of Organic Dyes Using Dual pin‐to‐plate Corona Discharge Plasma reactors for Industrial Wastewater Treatment

Modelling of corona discharge in cylinder-wire-plate electrode configuration

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