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Journal articles on the topic 'The corona electrode'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Bai, Ming Hua, Zhi Min Zhang, Zhi Qiang Liu, Jing Jing Liu, and Juan Li. "Experimental Study of Different Material Corona Electrode Absorption with Dusts in Electrostatic Precipitator on the Condition of Low Voltage." Advanced Materials Research 356-360 (October 2011): 1410–13. http://dx.doi.org/10.4028/www.scientific.net/amr.356-360.1410.

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Four main ingredients of the dust and four material corona electrodes were selected from sintering machine electrostatic precipitator (ESP) in this paper, affinity differences of the corona electrode with the four kinds of dusts can be concluded from the experiment on the condition of low voltage. According to the composition of dust to be processed in actual production, corresponding corona electrode and collecting plate materials should be selected to improve the phenomenon of corona electrode surface mast and tip balling and to improve collection efficiency.

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2

HONG, JIANXUN, JIANPING CHEN, XINWAN LI, and AILUN YE. "EFFECTS OF THE BIAS-CONTROLLED GRID ON PERFORMANCES OF THE CORONA POLING SYSTEM FOR ELECTRO-OPTIC POLYMERS." International Journal of Modern Physics B 19, no. 14 (2005): 2205–11. http://dx.doi.org/10.1142/s0217979205029766.

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The corona poling system for electro-optic polymers with a bias-controlled grid is experimentally studied. The relationship between the corona threshold voltage and the grid bias voltage is researched. There is a minimum in the corona threshold voltage versus grid bias voltage curve. Effects of the grid bias voltage, the mesh size and the grid electrode position on performances of the poling system are discussed and analyzed. The experimental results show that the grid electrode can enlarge the corona discharge dynamic range and control the poling current in a wide range, grid electrodes with

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3

Vilitis, O., I. Muzikante, M. Rutkis, and A. Vembris. "Chromophore Poling in Thin Films of Organic Glasses. 2. Two-Electrode Corona Discharge Setup." Latvian Journal of Physics and Technical Sciences 49, no. 2 (2012): 62–70. http://dx.doi.org/10.2478/v10047-012-0013-5.

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Chromophore Poling in Thin Films of Organic Glasses. 2. Two-Electrode Corona Discharge Setup In Part 1 of the article we provided description of the corona discharge physics and overview of the methods used for corona poling in thin organic films. Subsequent sections describe comparatively simple technical methods for poling the organic nonlinear optical polymers using a two-electrode (point-to-plate or wire-to-plate) technique. The polarization build-up was studied by the DC positive corona method for poling the nonlinear optical (NLO) polymers. The experimental setup provides the corona disc

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4

Yoyo Wardaya, Asep, Zaenul Muhlisin, and Isnain Gunadi. "MODIFIED CAPACITANCE MODEL IN THE CORONA PLASMA DISCHARGE." International Journal of Scientific Research and Management 11, no. 04 (2023): 437–42. http://dx.doi.org/10.18535/ijsrm/v11i04.m01.

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This research calculates the modified capacitance of the electrode capacitively coupled plasma (CCP) model with a crown sharp-plane configuration. The CCP model is an electrode model similar to the principle of a capacitor in a conventional circuit but differs in the arrangement of the electrodes. In the case of a positive corona, the structure of the positions of the active electrodes is almost vertical in the air, and the part of the passive electrodes is lying horizontally under the active electrodes. The shape of the active electrode is sharp at the tip of the electrode, which will cause a

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5

Shang, Ke Feng, Zhe Zhao, Xiu Yan Zhou, and Xiao Chen Wang. "Design of a Novel Corona Plasma Reactor for Decomposition of VOCs." Advanced Materials Research 113-116 (June 2010): 146–49. http://dx.doi.org/10.4028/www.scientific.net/amr.113-116.146.

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The configuration of discharge electrode is closely related to the uniformity and the strength of corona plasma, which has big effect on the efficiency of plasma in destructing pollutants, treating materials and so on. A novel sheet electrode was devised to enhance the input energy and the uniformity of plasma’s distribution, and its production performance of plasma was compared with other discharge electrodes including wire, needle and multi-needles. Corona images and I-V characteristic curves of discharge electrodes indicate that ultra-thin sheet electrode could produce more uniform and stro

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Asep, Yoyo Wardaya, Muhlisin Zaenul, and Gunadi Isnain. "Calculation of the (I-V) Characteristics of Corona Discharge in an Asymmetrical Model from Active Electrodes to Passive Electrodes." INTERNATIONAL JOURNAL OF MULTIDISCIPLINARY RESEARCH AND ANALYSIS 07, no. 06 (2024): 2498–501. https://doi.org/10.5281/zenodo.11518551.

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This research discusses the comparison of the formulation of the current-voltage (I-V) characteristics of symmetric and asymmetric direct current CCP equipment in the case of corona discharges in the air. The electrode configuration model taken for the symmetric CCP case is the coaxial cylinder and for the asymmetric CCP case is the plane-serrated knife. Both types of electrodes use a modified capacitance concept in the (I-V) characteristic calculations. This concept originates from a geometric approach solution (electrode sizes), where there is a corona electric current multiplier factor (cor

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7

Sumariyah, Kusminarto, Arief Hermanto, and Pekik Nuswantoro. "The Study of EHD Flow:Velocity and electrical power." MATEC Web of Conferences 156 (2018): 02016. http://dx.doi.org/10.1051/matecconf/201815602016.

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Electrohydrodynamics (EHD) flow is the yield of the corona discharge. Corona discharge characterized by electrical phenomena that occur together in a gas medium under the influence of an electric field. In corona discharge, the electric field is not homogeneous due to the geometry of the electrode configuration. In this study, a pin-multi concentric ring electrode (P-MRE) and pin-single ring electrode (P-SRE) has been used as electrodes configuration. The objective of this research is to get the velocity of EHD flow and determining the electrical power of the EHD flow. EHD flow generated by a

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8

Hadi, Susilo, Asep Yoyo Wardaya, Zaenul Muhlisin, et al. "Comparison of I-V Curves Between the Experiment of Corona Discharge on Gradient Line-To-Plane (GL-P) Configuration and The Mathematical Approach." Journal of Physics and Its Applications 3, no. 2 (2021): 155–64. http://dx.doi.org/10.14710/jpa.v3i2.10491.

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Research has been conducted on the comparison of the I-V characteristic curve between mathematical study and experiment of the generation of negative DC corona discharge in the Gradient Line-to-Plane (GL-P) electrode configuration. The reason for this research is to calculate the suitability of the corona discharge electrical current between the mathematical and experimental study. The active electrode used has length 2 cm and height 4 cm. This research is conducted with variations in the sharpness angle of the active electrode (θ) 300, 450, and 600 and variations in the distance between the e

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9

Chen, Fang, Chao Huang, You Shan Sun, Cheng Liang Jia, and Wan Peng Zhang. "Study on Dust-Removing Characteristic of Carbon Fiber Membrane in Electrostatic Precipitator." Advanced Materials Research 875-877 (February 2014): 739–42. http://dx.doi.org/10.4028/www.scientific.net/amr.875-877.739.

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A novel wet electrostatic precipitator used carbon fiber membrane as collector electrodes was designed for effective control of fine aerosol. The volt-ampere (V-I) characteristics of 3k，6k and 12k carbon fiber membrane with four kinds of typical discharge electrode were investigated to seek the ideal form of corona electrode. The results showed that 12k carbon fiber membrane obtained a higher corona current in the same voltage.

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10

Gu, Liang, Wei Tan, Juan He, et al. "Relationship between Corona Discharge Thrust and Applied Voltage’s Polarity." Energies 16, no. 14 (2023): 5257. http://dx.doi.org/10.3390/en16145257.

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The thrust from corona discharge might be a promising propulsion technology in future aviation due to its advantage of not requiring mechanical moving parts. Although the thrust from corona discharge has been researched by many scholars, the effect of the applied voltage’s polarity on the thrust has received little attention. This polarity effect might be very important for some special electrohydrodynamic thrusters. This paper firstly built a test platform to reveal the effect of the applied voltage’s polarity on both the thrust and the corona current from a pair of symmetrically distributed

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11

Xiang, Jianhui. "Simulation study of the effect of electrode polarity on microscale corona discharge characteristics." Journal of Physics: Conference Series 2814, no. 1 (2024): 012025. http://dx.doi.org/10.1088/1742-6596/2814/1/012025.

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Abstract The occurrence and application scenarios of micro-scale corona discharge are diverse, and the effect of micro-scale corona discharge mechanism and needle electrode polarity on corona discharge characteristics is still unclear. This paper establishes a microscale simulation model of pin-plate DC positive and negative corona fluid chemical reactions. The phenomenon of positive and negative corona discharge is being investigated. The internal discharge mechanism is analyzed from the microscopic point of view. Results demonstrate that positive corona discharge generates space charges that

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12

Kim, Do-Hyun, Min-Soo Kim, Muhammad Adil Khan, and Hee-Je Kim. "Analysis of Fine Dust Removal Time Using Circular Hole Electrodes of Various Sizes by Corona Discharge." Energies 11, no. 8 (2018): 1956. http://dx.doi.org/10.3390/en11081956.

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Corona discharge technology is used widely for air purification in laboratory experiments and industry. On the other hand, corona discharge technology has the disadvantage of requiring large-sized electrodes. Therefore, research is needed to reduce the size of the electrodes. In this study, circular hole aluminum electrodes and an air purifier system were designed to reduce the size of the electrodes. Several sets of power conversions were performed to generate a corona discharge. The system consisted of a half bridge inverter, step-up transformer, and Cockcroft Walton circuit. The range of in

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13

Karabanov, Sergey, Dmitry Suvorov, Gennady Gololobov, et al. "Long-Time Stability of Catalytic Coatings on the Basis of Nanoporous TiO2 under the Influence of Corona Discharge Plasma in Air." MRS Advances 1, no. 18 (2016): 1307–12. http://dx.doi.org/10.1557/adv.2016.57.

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ABSTRACTThe present paper contains results of the experimental researches of structure properties of the catalytic coating based on the nanoporous TiO2 film affected by corona-discharge plasma in air atmosphere under atmospheric pressure in the test system of needle-plane electrodes. Coating of the plate electrode was found to influence insignificantly on the discharge current-voltage characteristic, however if there is a coating on the plane electrode surface, an offset is observed towards lower currents under constant voltage at the gap. Obtained data on the surface morphology change shows t

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14

Zhakin, A. I., and A. E. Kuzko. "Ionization Processes of Negative Corona Discharge Part 1. Review and Experiment." Proceedings of the Southwest State University. Series: Engineering and Technology 14, no. 1 (2024): 128–49. http://dx.doi.org/10.21869/2223-1528-2024-14-1-128-149.

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The purpose of the research is an experimental study of physical processes in the near-electrode zones of negative point electrodes in an electronegative gas (air) under the condition of a high-voltage field.Methods. Video image analysis, current-voltage characteristics measurements, and spectroscopy are used. The current-voltage characteristics of the corona discharge ignition voltage in the environment are measured, the problem of experimental identification of surface charges, the mechanism of negative corona discharge ignition, and the ionic structure of streamers is studied, degradation o

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15

Wardaya, Asep Yoyo, Zaenul Muhlisin, Jatmiko Endro Suseno, et al. "Capacitance Calculation Model in Corona Discharge Case." Mathematical Modelling of Engineering Problems 9, no. 5 (2022): 1161–71. http://dx.doi.org/10.18280/mmep.090501.

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The (I-V) characteristic pattern of the corona discharge case is very different from the pattern of ordinary electric circuits, so it is interesting to investigate. Several previous studies involved the concept of Maxwell's equations on several physical case models such as coaxial cylinder, electrohydrodynamic, and the electric wind. In this study, we use a capacitance calculation model for positive dc corona discharge in air, especially in calculating the (I-V) current-voltage characteristics of an electrode configuration model, often referred to as capacitively coupled plasma (CCP). The conf

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16

Vilitis, O., E. Titavs, E. Nitiss, and M. Rutkis. "Chromophore Poling in Thin Films of Organic Glasses. 3. Setup for Corona Triode Discharge / Hromoforu Polarizēšana Plānās Organisko Stiklu Kārtiņās 3. Koronas Izlādes Triodes Ierīce." Latvian Journal of Physics and Technical Sciences 50, no. 1 (2013): 66–75. http://dx.doi.org/10.2478/lpts-2013-0004.

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The corona discharge is described focusing on the advantages of corona triode techniques for the direct current (DC) positive poling of optical polymers. The proposed experimental setup allows the corona poling of nonlinear optical (NLO) polymers in the modes of DC constant current (the lowest 1nA) and of the fixed corona-grid voltage, making it possible to carry out the corona-onset poling at elevated temperature (COPET) up to 200 oC. The setup also provides a wide range of the corona discharge voltage (3 kV - 15 kV), variable reciprocal distance of electrodes as well as the possibility to ch

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17

Asep, Yoyo Wardaya, Muhlisin Zaenul, Gunadi Isnain, and Triadyaksa Pandji. "The Knife-Plane Configuration Model of CCP equipment from plasma corona discharge case." INTERNATIONAL JOURNAL OF MULTIDISCIPLINARY RESEARCH AND ANALYSIS 06, no. 12 (2023): 5641–44. https://doi.org/10.5281/zenodo.10376878.

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This research discusses the concept of analytical calculations of current-voltage (I-V) characteristics in the case of corona discharges using an asymmetric electrode model (with a DC source), which is often called capacitively coupled plasma (CCP) equipment. This CCP equipment, which is almost similar in shape to capacitor equipment in conventional electrical equipment, has the characteristic of having an active electrode in an upright position above the position of a passive electrode (in a lying position) in the air. Another characteristic is that the lowest end of the active electrode has

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18

Wardaya, Asep Yoyo, Zaenul Muhlisin, Alam Hudi, et al. "A study of line-plane configuration in the Corona discharge theory." European Physical Journal Applied Physics 89, no. 3 (2020): 30801. http://dx.doi.org/10.1051/epjap/2020200011.

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Research on corona discharges from plasma generators has been studied using the line-plane configurations (L-PC). The purpose of this study is to calculate the comparison of the level of conformity of the voltage current characteristic curve (I–V) from the simulation results of numerical calculations of the electrode geometry function and the results of experimental data. There is an electrode (electrode 1) in the form of a rectangular plate with a very thin thickness which has a length and width of a and b respectively in an upright position (line configuration). Electrode 1 has a distance of

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19

Cogollo, Mar, Pedro M. Balsalobre, Andrés Díaz Lantada, and Héctor Puago. "Design and Experimental Evaluation of Innovative Wire-to-Plane Fins’ Configuration for Atmosphere Corona-Discharge Cooling Devices." Applied Sciences 10, no. 3 (2020): 1010. http://dx.doi.org/10.3390/app10031010.

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Electro-fluid-dynamic cooling devices (EFAs) are being recognized due to their enormous advantages for their application in several industrial sectors, their performance benefits from generated ionic winds and their singular features, which make them competitive with conventional fans and heatsinks. Due to the problems in the electronics industry, where traditional refrigeration systems are not effective due to their dimensions, this study analyzes an innovative arrangement based on wire-to-plane fins by direct current (DC) positive corona discharge in atmospheric air for applications. The pap

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20

Ренев, М. Е., Ю. Ф. Сафронова та Ю. К. Стишков. "Управление обтеканием круглого цилиндра с помощью коронного разряда". Журнал технической физики 89, № 9 (2019): 1352. http://dx.doi.org/10.21883/jtf.2019.09.48060.5-19.

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In the paper an influence of ion wind caused by positive corona discharge on a bulk motion near a circular cylinder at Reynolds numbers 2400, 3200 was studied. The geometry of the cylinder-wire electrodes was considered for two positions of the active electrode relative to the cylinder: behind the cylinder and two symmetrical wires above and below the cylinder. A direct numerical simulation of electrohydrodynamic problem was performed. The original unipolar model of the corona discharge was used. The impact of a thin jet of ion wind directed from the active electrode to the cylinder on vortex

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21

Zhang, Zisheng, Bo Sun, Jie Yang, Yusheng Wei, and Shoujie He. "Electrostatic separation for recycling silver, silicon and polyethylene terephthalate from waste photovoltaic cells." Modern Physics Letters B 31, no. 11 (2017): 1750087. http://dx.doi.org/10.1142/s0217984917500877.

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Electrostatic separation technology has been proven to be an effective and environmentally friendly way of recycling electronic waste. In this study, this technology was applied to recycle waste solar panels. Mixed particles of silver and polyethylene terephthalate, silicon and polyethylene terephthalate, and silver and silicon were separated with a single-roll-type electrostatic separator. The influence of high voltage level, roll speed, radial position corona electrode and angular position of the corona electrode on the separation efficiency was studied. The experimental data showed that sep

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MI, JUNFENG, DEXUAN XU, XIMEI TIAN, YINGHAO SUN, and XIAOYU ZHANG. "COMPARATIVE INVESTIGATIONS ON MAGNETICAL ENHANCED NEGATIVE- AND POSITIVE-CORONA DISCHARGES." International Journal of Modern Physics B 23, no. 26 (2009): 5131–42. http://dx.doi.org/10.1142/s0217979209053710.

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The magnetically enhanced negative- and positive-corona discharges were compared in the current study. In the magnetically enhanced corona discharges, some small permanent magnets were employed to form the local magnetic fields on the corona discharge region, in which the Larmor movements of free electrons enhance ionizations of the gas molecules. The characteristics of discharge current changing in the magnetically enhanced corona discharges were firstly revealed here. The experimental results showed that the relative increases of corona discharge currents had a maximum value in both the magn

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23

Batka, Ondrej, Josef Skrivanek, and Jaroslav Beran. "Optimizing the Shape of the Spinning Electrode for Needleless Coaxial Electrospinning." Applied Sciences 14, no. 11 (2024): 4638. http://dx.doi.org/10.3390/app14114638.

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This work deals with designing the optimal shape of the spinning electrode to optimize the distribution of the electric field and suppress the formation of corona discharges on the surface of the electrode during electrospinning using direct current (DC). Some of the solutions used for electrospinning are solved in flammable solvents, such as PVB; therefore, corona discharges are hazardous, as they cause sparks that can cause fires and explosions. The shape optimization was carried out on a plate weir electrode, which uses the principle of free surface spinning. Using the electric field simula

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24

Shi, Jinqiang, Fubao Jin, Shangang Ma, Xinhe Liu, Xuejian Leng, and Keyuan Chen. "Microanalysis of Active Nitrogen Oxides (RONS) Generation Characteristics during DC Negative Corona Discharge at a Needle-Plate Electrode." Plasma 6, no. 4 (2023): 649–62. http://dx.doi.org/10.3390/plasma6040045.

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The DC negative corona of needle-plate electrodes can generate atmospheric pressure low-temperature plasma active particles, which have important effects on biological mutagenesis. The DC negative corona discharge of an air needle-plate electrode with effective consideration of NOx particles was simulated and the Trichel pulse current was obtained, focusing on the development of particles and the distribution of active nitrogen oxides (RONS) at four moments in the pulse process. The simulation results indicate that the positive ions (N2+ and O2+) and negative ions (O− and O2−) were closely rel

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Bokanova, Aliya Abylgazievna, Galiya Sabyrovna Kanakhina, and Kulpan Tattibekovna Tleumuratova. "DEVELOPMENT OF A DEVICE FOR AIR PURIFICATION IN WEAVING FACTORIES." Globus 7, no. 7(64) (2021): 30–33. http://dx.doi.org/10.52013/2658-5197-64-7-6.

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The article discusses the issues of creating devices for cleaning the air of the spinning shop of a weaving factory. Of the previously considered, the authors prefer devices using the ozone method of air purification and disinfection. The ozonator device consists of an ozonizing element, including a corona and external electrodes, discharge chambers in the form of cylinders. The corona electrode has a diameter of 50-100 microns, which is an advantage compared to foreign analogues.

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Kulumbaev, E. B., V. M. Lelevkin, I. A. Niyazaliev, and A. V. Tokarev. "Characteristics of a corona discharge with a hot corona electrode." Plasma Physics Reports 37, no. 8 (2011): 707–14. http://dx.doi.org/10.1134/s1063780x11060134.

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Rzaeva, S. V. "Features of Electrodeless Electrochemical Reactions." Elektronnaya Obrabotka Materialov 59, no. 1 (2023): 14–18. http://dx.doi.org/10.52577/eom.2023.59.1.14.

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The article deals with reactions occurring under the action of active particles formed during the flash of a corona electric discharge between a solid electrode and the surface of a liquid – electrochemical reactions without an electrode. Reactions take place in a thin surface layer of water, where there are no electrodes, so the reactions are called electrodeless. The electrodes are used only to excite the reaction zone and do not directly participate in the reaction. The oxidation of organic compounds to carbon dioxide and water occurs in an electrodeless reaction.

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Khan, Mohammad Saifullah, and Minhaj Rehman. "Effectiveness of Copper as an Electrode Material on Enhancement of Electrohydrodynamic Drying Process." Advanced Engineering Forum 48 (January 10, 2023): 81–94. http://dx.doi.org/10.4028/p-a1i4ps.

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In the present investigation, enhancement in the drying rate by an AC corona discharge from a single Copper (Cu) needle electrode was evaluated experimentally. The electrode generates corona wind (ionic wind), which impinges on, and eliminates moisture from the surface of a moist test sample. The corona discharge was generated by connecting the needle electrode to an alternating current (AC) power source. The drying sample consisted of 5mm soda lime glass beads saturated with water. Experiments were performed in the presence and absence of airflow over the drying samples, which were subjected

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Sumariyah, Kusminarto, Arief Hermanto, and Pekik Nurwantoro. "Velocity Measurement of EHD Flow Produced by Pin-Multi Concentric Ring Electrodes Generator." Applied Mechanics and Materials 771 (July 2015): 227–31. http://dx.doi.org/10.4028/www.scientific.net/amm.771.227.

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Study of EHD flow by using generator corona discharge with electrodes configuration of pin to multi concentric rings (MCR) and pin to single ring (SR) have been curried out. We measured the velocity of EHD flow and determined the comparison of velocity of EHD flow produced by pin to single ring electrodes. The pin needle was made by stainless steel with a length of 50 mm and a tip diameter of 0.14 mm. The multi-ring electrodes constracted by three concentric rings with a metal material connected to each other and each ring has a diameter of 24 mm, 16 mm and 8 mm in width and the same ring thic

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Parpiyev, M. P., A. A. Simonov, A. I. Kamardin, and O. Kh Abdurakhmanov. "Corona discharge ozonizers with vacuum coatings and their use for processing agricultural products." IOP Conference Series: Earth and Environmental Science 1142, no. 1 (2023): 012016. http://dx.doi.org/10.1088/1755-1315/1142/1/012016.

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Abstract At present the majority of ozonizers in the world are manufactured on the basis of a barrier discharge. But the special ceramic electrodes used for such ozonizers are highly sensitive to humidity and pollution of the air supplied to the device. Typically, these devices use cartridges to filter and dehumidify the air. In this research, corona discharge ozone generators were used due to sufficient energy efficiency and ease of implementation of this method of ozone synthesis from oxygen-containing gases. The results showed that that coatings with a thickness of up to 3-5 μm made it poss

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Llovera-Segovia, Pedro, Gustavo Ortega-Braña, Vicente Fuster-Roig, and Alfredo Quijano-López. "Charging of Piezoelectric Cellular Polypropylene Film by Means of a Series Dielectric Layer." Polymers 13, no. 3 (2021): 333. http://dx.doi.org/10.3390/polym13030333.

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Piezoelectric polymer cellular films have been developed and improved in the past decades. These piezoelectric materials are based on the polarization of the internal cells by means of induced discharges in the gas inside the cells. Internal discharges are driven by an external applied electric field. With this polarization method, cellular polypropylene (PP) polymers exhibit a high piezoelectric coefficient d33 and have been investigated because of their low dielectric polarization, high resistivity, and flexibility. Charging polymers foams is normally obtained by applying a corona discharge

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Kachi, Miloud, and Lucien Dascalescu. "Corona discharges in asymmetric electrode configurations." Journal of Electrostatics 72, no. 1 (2014): 6–12. http://dx.doi.org/10.1016/j.elstat.2013.11.001.

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Wang, Zutao, Chuan Li, Menghan Xiao, et al. "Coalescence and counterflow of droplets on needle electrode with negative corona discharge." Plasma Sources Science and Technology 31, no. 3 (2022): 035007. http://dx.doi.org/10.1088/1361-6595/ac47e3.

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Abstract The coalescence of droplets on the discharge electrode surface in high humidity environments has rarely been studied, which may affect discharge characteristics. Meanwhile, directional transport of droplets is of great significance for many applications ranging from fluidic processing to thermal management. Here, corona discharge in a needle-plate electrode is adopted to explore the coalescence rule of droplets attached on the discharge electrode surface in a high-humidity environment, and to realize the counterflow of droplets. The experimental results show that the number of coalesc

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Yulistya Negara, I. Made, Daniar Fahmi, Dimas Anton Asfani, I. G. N. Satriyadi Hernanda, Mochammad Wahyudi, and Muhammad Novis Ibrahim. "Effect of Floating Metallic Particles in Pre-Breakdown and Breakdown Characteristics of Oil Transformer under DC Voltage." Energies 14, no. 12 (2021): 3669. http://dx.doi.org/10.3390/en14123669.

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Contaminants in transformer oil insulation can float when meeting several conditions. Then, the presence of floating contaminants affects the electrical characteristics of oil insulation. Therefore, the pre-breakdown (corona) and breakdown characteristics due to metallic floating particles in transformer oil insulation would be investigated. This test used DC high voltage stress. A 56 Ω resistor was connected to the oscilloscope to detect the corona currents. The camera was used to capture the images of corona light emission. In addition, the electric field between the electrode and particles

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Tahir, M. Hijaaj, A. Arshad, and Habib Ullah Manzoor. "Influence of corona discharge on the hydrophobic behaviour of nano/micro filler based silicone rubber insulators." Materials Research Express 9, no. 3 (2022): 035302. http://dx.doi.org/10.1088/2053-1591/ac5b04.

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Abstract Silicone rubber is one of the most used outdoor insulation materials in the last few decades due to its improved performance in contaminated and humid conditions. The improved performance of silicone rubber insulators is due to their hydrophobic nature, however, the organic nature of silicone molecules makes them vulnerable to ageing and degradation. This paper aims at investigating the loss and recovery of hydrophobicity of four different silicone rubber micro/nanocomposites exposed to corona discharge. The samples were exposed to corona discharge generated by pin-plate electrode con

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Skubis, Jerzy, and Michał Kozioł. "Analysis of the Possibility of Using Drill-Type Electrodes for Air Ionization." Applied Sciences 10, no. 11 (2020): 4030. http://dx.doi.org/10.3390/app10114030.

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In this article, the authors present the results of the analysis of the ionization efficiency of drill-type needle electrodes in air. The analysis was carried out on the basis of experimental laboratory measurements, examined at alternating voltages. Drill-type electrode systems of different diameters were adopted for the tests. The ionization efficiency for this type of electrode has been characterized by values of characteristic voltages, such as the initial voltage of the corona voltage and the sparking voltage. The obtained results were compared with the results of classical conical needle

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CHEN, Ke, Lianghao WAN, Bingyan CHEN, et al. "Characteristics of water volatilization and oxides generation by using positive and negative corona." Plasma Science and Technology 24, no. 4 (2022): 044007. http://dx.doi.org/10.1088/2058-6272/ac567c.

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Abstract The physical and chemical properties have significant differences for the positive and negative charged particles generated by discharge. In this work, a positive and negative corona discharge system was established, and two discharge reactors for charged particles restraining and acting were designed by a needle electrode covered with a quartz tube and a plate electrode filled with water. The corona discharges happened within the needle-plate electrodes were excited by a positive and negative high voltage source, and the characteristics of both water volatilization and oxides generat

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Cogollo de Cádiz, Mar, Pedro Martí Balsalobre, and Andrés Díaz Lantada. "Research on Wire-to-Two Fin Configuration for Positive Atmospheric Plasma by Electrokinetic Blower." Energies 15, no. 15 (2022): 5443. http://dx.doi.org/10.3390/en15155443.

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Interest in the development of electro-fluid-dynamic devices (EFDs) based on corona discharge is growing due to their advantages and applicability across different industrial sectors. On the one hand, their performance as forced convection motors, in terms of weight, volume, and absence of noise and moving parts, make them competitive against traditional systems such as fans. On the other hand, the actions of the corona discharge, in terms of elimination of viruses and bacteria, are already known. This paper studies the characteristics of corona discharge in terms of air flow for a new propose

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Birhane, Y. T., S. C. Lin, and F. C. Lai. "Effect of Electrode Length on the Performance of EHD Gas Pump." Applied Mechanics and Materials 598 (July 2014): 355–60. http://dx.doi.org/10.4028/www.scientific.net/amm.598.355.

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The effects of electrode length on the characteristics of flow induced by an electrohydrodynamic (EHD) gas pump in circular pipe have been experimentally examined in this study. The gas pump has a diameter of 61.8 mm and uses eight evenly spaced emitting electrodes which are flush mounted on the tube inner wall. The gap distance between emitting and ground electrodes is fixed at 25 mm and two emitting electrode lengths (15 mm and 40 mm) are considered. Experiments are conducted using positive corona discharge with voltage varying from 17.5 kV to 23 kV. Several important implications from the p

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Handoko, B., S. Notodarmojo, and R. Iqbal. "Removal of phthalocyanine reactive dye using plasma corona discharge." IOP Conference Series: Earth and Environmental Science 1065, no. 1 (2022): 012034. http://dx.doi.org/10.1088/1755-1315/1065/1/012034.

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Abstract Phthalocyanine reactive dye is typically difficult to biodegrade in water because of its big molecular size coming from the complex metal structure of the dye. Corona plasma discharge which can produce active radical species and molecules with high oxidation potentials, shockwaves, and ultraviolet light is the potential to efficiently degrade the compounds. The experiments were carried out in a batch reactor with a capacity of 400 ml. The plasma generator used in this study had a point-plane electrode configuration with a voltage of 40 kV. The concentration of dye used as a target for

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Ouatah, El Hanafi, Soufiane Megherfi, Boukhalfa Bendahmane, and Youcef Zebboudj. "Effect of Room’s Temperature and Electrode Gap on Current of Negative Corona Discharge in Rod-Plane Electrode Configuration." Mathematical Modelling of Engineering Problems 9, no. 2 (2022): 298–304. http://dx.doi.org/10.18280/mmep.090202.

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The stable corona discharge is widely used in filtration and electrostatic separation in recent years, and several models have been used by researchers to analyze one of its most important properties which is the current-voltage characteristic. The aim of this paper is to investigate the influence of ambient temperature and electrodes’ gap on negative DC discharge using rod-plane geometry, and the Townsend formula was found to be most appropriate model (I=K.V.(V-V0)). The experimental results show that for the same voltage level applied to the high voltage electrode, the discharge current rise

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Hatamoto, Asami, Kumi Nakai, and Hiroyuki Nishida. "Experimental Study on the Working Characteristics of Tri-Electrode Plasma Actuator Utilizing a Combination of Corona and Barrier Discharges." Actuators 11, no. 11 (2022): 322. http://dx.doi.org/10.3390/act11110322.

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A tri-electrode plasma actuator (TED-PA), which has an additional electrode with a DC voltage, induces jets from two facing electrodes and achieves larger thrust and higher efficiency than a conventional dielectric barrier discharge plasma actuator. However, there are problems such as the large potential difference between the exposed electrodes, which can cause sparks and device destruction. Therefore, it is necessary to clarify the working mechanism of TED-PAs and optimize their configuration and applied voltage. In this study, we obtained the discharge photograph, the thrust, and the flow v

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A. S. Hasaani and Hassan J. Mohammed. "Measurements of Corona Discharge in Non-Uniform Field Freon GAP." Diyala Journal of Engineering Sciences 7, no. 4 (2014): 47–61. http://dx.doi.org/10.24237/djes.2014.07404.

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Corona Discharge have been recorded in pin-to pin electrode at gas pressure gaps with high degree of non-uniformity electric field. For a wide range of experimental applicability the pin to pin electrode was used over pressure range from 1bar to 3bar and gap spacing from 0 to 5mm.High –pressure dc corona discharge experiments have been carried out in a 16cm long glass chamber with an inner diameter and outer diameter are 16.8cm, and 19cm respectively. Corona onset voltage and breakdown voltages were reached. The design considerations of the setup allow to use pin to pin electrode type geometri

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Kim, Seong Jun, Ji Kyun Kim, Hyeon Seok Lee, Jeong Yeol Kwon, and Heon Yong Lee. "A Study on Improved Characteristics of Electric Charge Storage after Thermal Treatment Using Teflon FEP Film." Solid State Phenomena 124-126 (June 2007): 319–22. http://dx.doi.org/10.4028/www.scientific.net/ssp.124-126.319.

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In this paper, we studied the method of electrets electrode which formed to accumulate negative electric charge by corona discharge. The breakdown voltage sample and damaged sample by various corona discharges have made material stabilization and improved characteristics of electric charge storage throughout the annealing process. After the experiment made material stabilization nearly melting point by many kinds of annealing conditions, we did the corona discharge again by the charged high voltage, a discharge electrode gap, and a discharged time. As we compared it with the best condition, we

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Tirumala, R., Y. Li, D. A. Pohlman, and D. B. Go. "Corona discharges in sub-millimeter electrode gaps." Journal of Electrostatics 69, no. 1 (2011): 36–42. http://dx.doi.org/10.1016/j.elstat.2010.10.006.

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Liu, Kun, Fei Tang, and Xiao Hao Wang. "Generation and Application of the Atmospheric Pressure DC Glow Discharge Using Minor Electrodes under N2 Flow." Key Engineering Materials 483 (June 2011): 765–69. http://dx.doi.org/10.4028/www.scientific.net/kem.483.765.

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A new discharge system which can generate stable atmospheric pressure DC glow discharge is reported in this paper. The system is made up of an inner line electrode and an outer cylinder-like electrode. The radii of the inner and outer electrodes are only 0.08 and 2 mm, respectively. The transition from corona discharge to glow discharge is observed. The experiments show that the discharge has typical features of normal glow discharge and can produce nonthermal plasma. It has been used as an ambient ion source, and chemicals such as formic acid, acetic acid, phenol, and benzoic acid can be ioni

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Viraneva, A. P., M. G. Marudova, A. V. Grigorov, and T. A. Yovcheva. "Investigation of the electret properties of PDLA/PEC porous composite films." Bulgarian Chemical Communications 56, no. D1 (2024): 73–76. http://dx.doi.org/10.34049/bcc.56.d.s1p35.

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In the present paper the influence of both time and low pressure on the surface potential decay of porous composite films of poly(D-lactic acid) and poly(ε-caprolactone) was investigated. The samples were charged in a corona discharge by means of a corona triode system under room conditions. Positive or negative voltage was applied to the corona electrode and voltage of the same polarity as that of the corona electrode was applied to the grid. After charging, the initial surface potential was measured using the method of the vibrating electrode with compensation. Two groups of tests were perfo

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Xu, Ming Ming, Ke Jun Li, Lin Niu, Min Liu, and Zhi Hong Guo. "Tube Bus Corona Optimal Design of HVDC Converter Substation." Advanced Materials Research 139-141 (October 2010): 1384–87. http://dx.doi.org/10.4028/www.scientific.net/amr.139-141.1384.

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The corona characteristic of HVDC tube bus is the main factor taken into account for choosing tube bus of HVDC converter substation. The intension of corona could affect the electromagnetic environment of converter station and generate audible noise. By establishing the calculation models of electric field strength along the tube bus surface and the electric field strength on ground, the paper computes the corona onset voltage gradient and gives the relation curve of high and electrode spacing of tube bus. If the tube bus in HVDC converter substation is installed at the high and electrode spac

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Muzafarov, Sh M., V. E. Balitsky, B. K. Togaev, A. G. Babayev, and O. G. Kilichov. "Investigation of the cleaning the air flow process from aerosol particles in the electric fields of the corona discharge’s streamer form." IOP Conference Series: Earth and Environmental Science 1142, no. 1 (2023): 012003. http://dx.doi.org/10.1088/1755-1315/1142/1/012003.

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Abstract This article presents the methodology and results of experimental studies of the parameters of the electrode system “Potential plane with corona needles - grounded plane”. The parameters of the electrode system were determined for a distance between the electrodes of 0.15 m. The parameters of the electrode system determined on the basis of these studies were verified on the basis of experimental studies of the process of trapping dust particles from an air stream. The methodology and analysis of the results of these studies are given. Based on these studies, the best ratios of the par

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Kaķītis, Aivars, and Imants Nulle. "BIOMASS MIXTURES AND ITS HOMOGENEITY." Environment. Technology. Resources. Proceedings of the International Scientific and Practical Conference 1 (August 3, 2015): 32. http://dx.doi.org/10.17770/etr2009vol1.1097.

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Components of mixtures have to be in required proportion and homogeneous mixed to provide good quality of briquettes or pellets. Analyzing the mixing processes several advantages for mixing biomass with an in-flow or continuous mixer was discovered. To provide better quality of in-flow mixing process an electrical charge can be applied to the particles using corona discharge. When a sharply pointed electrode is raised to a high potential, the intense electrical field at its tip ionizes the air in its immediate vicinity. To mix particles of different bulk materials, it is necessary to give a ne

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