Journal of Electrostatics最新文献_第10页

Study on the influence of electrodes on the collection efficiency during the treatment of welding fume in electrostatic precipitators 电除尘器处理焊烟过程中电极对收集效率影响的研究

IF 1.8 4区工程技术

Journal of Electrostatics Pub Date : 2023-05-01 DOI: 10.1016/j.elstat.2023.103808

引用次数: 0

Scaling relations for the geometry of wire-to-airfoil atmospheric ionic thrusters 导线-翼型大气离子推进器几何形状的比例关系

IF 1.8 4区工程技术

Journal of Electrostatics Pub Date : 2023-05-01 DOI: 10.1016/j.elstat.2023.103815

Omar Kahol, Marco Belan, Mattia Pacchiani, Domenico Montenero

引用次数: 0

Experimental and numerical modeling of DC corona discharge in Wire-Cylinder-Plane configuration 线-圆柱-平面结构直流电晕放电的实验与数值模拟

IF 1.8 4区工程技术

Journal of Electrostatics Pub Date : 2023-05-01 DOI: 10.1016/j.elstat.2023.103814

Ahmed Kasdi , Sabrina Chouali , Adel Bekakria , Lucian Dascalescu

{"title":"Experimental and numerical modeling of DC corona discharge in Wire-Cylinder-Plane configuration","authors":"Ahmed Kasdi , Sabrina Chouali , Adel Bekakria , Lucian Dascalescu","doi":"10.1016/j.elstat.2023.103814","DOIUrl":"10.1016/j.elstat.2023.103814","url":null,"abstract":"<div>The aim of this paper is to present a numerical and experimental study of the positive corona discharge in the Wire-Cylinder-Plane geometry intended for electrostatic charging of insulating materials. A detailed experimental procedure is described to determine the corona discharge characteristics where different electrode layouts have been tested to improve the performance of the charge process. In addition, the corona governing equations are successfully implemented and solved in the studied geometry using Comsol Multiphysics Software. The study focused on the effect of the presence of the non-ionizing cylinder on the coronating wire. It has been found that increasing the diameter of the cylinder or bringing it closer to the wire reinforces the shielding effect between the two electrodes, which results in the reduction of the corona current and current density at the level of the measurement plane. The measured I–V characteristics and current density distributions were found to be in good agreement with the corresponding numerical predictions.</div>","PeriodicalId":54842,"journal":{"name":"Journal of Electrostatics","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47606798","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Numerical study of the influence of using crenelated collecting plates on the electrostatic precipitators 采用多孔集尘板对静电除尘器影响的数值研究

IF 1.8 4区工程技术

Journal of Electrostatics Pub Date : 2023-05-01 DOI: 10.1016/j.elstat.2023.103811

Mo’ath Bani Fayyad, Angel Asipuela González, Tamás Iváncsy

{"title":"Numerical study of the influence of using crenelated collecting plates on the electrostatic precipitators","authors":"Mo’ath Bani Fayyad, Angel Asipuela González, Tamás Iváncsy","doi":"10.1016/j.elstat.2023.103811","DOIUrl":"10.1016/j.elstat.2023.103811","url":null,"abstract":"<div>Electrostatic precipitators (ESPs) are extensively used in industry to remove undesirable particles from flue gases using corona discharge. The particle collection efficiency of the ESPs is greatly affected by the optimization of collecting plates and corona electrode configurations. Different researchers are working to improve standard models in various ways to obtain a better performance of ESPs. This paper investigates the influence of using crenelated plates (CrPs) with five designs of collecting electrodes by changing the geometries of the crenelated part (the amplitude and the wavelength) and comparing them with flat plates (FPs) on the electrical proprieties of a single-stage ESP. The particle collection efficiency of the ESP and the dust particles’ transport behavior were enhanced using the crenelated collecting plates (CrPs), especially when using case E, which provides the highest collection efficiency for all particle sizes (0.01-5) <math><mrow><mi>μ</mi><mi>m</mi></mrow></math>. For instance, the particle collection efficiency of the CrP E type is 76%, which is 8% higher than the CrP D type for particles of about 0.1 <math><mrow><mi>μ</mi><mi>m</mi></mrow></math>. At the same time, 88% for CrP E with <math><mrow><mn>0</mn><mo>.</mo><mn>05</mn><mspace></mspace><mi>μ</mi><mi>m</mi></mrow></math>, which is 10% greater than the CrP D type. In addition, the influence of changing the amplitude (<math><mi>A</mi></math>) has more significant than changing wavelength (<math><mi>λ</mi></math>) on the particle collection efficiency and the dust particles’ transport behavior.</div>","PeriodicalId":54842,"journal":{"name":"Journal of Electrostatics","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43055984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Effect of voltage waveshape and pressure on streamer breakdown criterion for predicting flashover voltage of polymeric insulators 电压波形和压力对聚合物绝缘子闪络电压预测的流光击穿准则的影响

IF 1.8 4区工程技术

Journal of Electrostatics Pub Date : 2023-05-01 DOI: 10.1016/j.elstat.2023.103813

Amirtha Gowri R, Usa S

{"title":"Effect of voltage waveshape and pressure on streamer breakdown criterion for predicting flashover voltage of polymeric insulators","authors":"Amirtha Gowri R, Usa S","doi":"10.1016/j.elstat.2023.103813","DOIUrl":"10.1016/j.elstat.2023.103813","url":null,"abstract":"<div>The flashover voltage (FOV) of an outdoor insulator varies with atmospheric conditions and the voltage waveshapes. When altitude increases, the FOV decreases due to various atmospheric factors, mainly the pressure. The FOV of the insulator changes under normal operating conditions and transient over-voltages. As the flashover is dominated by streamer mechanisms, this study addresses the application of the streamer breakdown criterion to predict the FOV under different waveshapes and pressures. The Streamer breakdown criterion requires three parameters: electric field distribution, the relation between electric field and effective ionization co-efficient and the appropriate streamer initiation constant (K). The electric field distribution is computed using a FEM based electrostatic solver and the corresponding effective ionization coefficient is calculated. Though the computational procedures of the first two parameters are well defined, uncertainty exist in the value of K, as K depends on the type of gas, electrode geometry, gap distance, pressure, voltage waveshapes, etc. Though many studies have been carried out on configurations under AC, DC and LI only with different ranges of K, reports on the effect of voltage waveshape on the same configuration at different pressures are lacking. Hence, FOVs of an 11 kV polymeric insulator under DC, AC, LI, SI and the steepest VFTO for various pressures (0.75–1.013 bar) are measured and exact Ks are extracted. The necessity of the voltage waveshape-specific K range is inferred and quantified for accurate prediction of FOVs and also inferring the possibility of prediction of FOV without doing any experiments. The applicability of the K range for different arc lengths is verified using SiR samples.</div>","PeriodicalId":54842,"journal":{"name":"Journal of Electrostatics","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45267063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of ageing of monoesters and mineral oil on the propagation of creeping discharges 单酯和矿物油老化对蠕变放水繁殖的影响

IF 1.8 4区工程技术

Journal of Electrostatics Pub Date : 2023-05-01 DOI: 10.1016/j.elstat.2023.103810

Jean Lambert Jiosseu , Ghislain Mengata Mengounou , Emeric Tchamdjio Nkouetcha , Adolphe Moukengue Imano

引用次数: 4

Efficacy evaluation of an air-assisted electrostatic disinfection device for the effective disinfection and sanitization against the spread of pathogenic infections 一种空气辅助静电消毒装置对病原菌传播进行有效消毒卫生的效果评价

IF 1.8 4区工程技术

Journal of Electrostatics Pub Date : 2023-05-01 DOI: 10.1016/j.elstat.2023.103807

Aarti Chauhan , Manoj Kumar Patel , Shilpa Chaudhary , Manoj Kumar Nayak , Surender Singh Saini , Pratap Pullammanappallil , Nadarajah Manivannan , Geoffrey Robert Mitchell , Wamadeva Balachandran

{"title":"Efficacy evaluation of an air-assisted electrostatic disinfection device for the effective disinfection and sanitization against the spread of pathogenic infections","authors":"Aarti Chauhan , Manoj Kumar Patel , Shilpa Chaudhary , Manoj Kumar Nayak , Surender Singh Saini , Pratap Pullammanappallil , Nadarajah Manivannan , Geoffrey Robert Mitchell , Wamadeva Balachandran","doi":"10.1016/j.elstat.2023.103807","DOIUrl":"10.1016/j.elstat.2023.103807","url":null,"abstract":"<div>This research aims to check the chargeability of sodium hypochlorite and the efficacy evaluation of an air-assisted electrostatic disinfection device. Five different inanimate surfaces i.e., wood, glass, stainless steel, plastic and fabric were considered to examine the performance in terms of efficacy, survival time, off-target losses, spray coverage and the volume of disinfectant consumed. A significant charge-to-mass level of 2.43 mC/kg was achieved for sodium hypochlorite at an applied voltage of 2.0 kV, a liquid flowrate of 253 ml/min and applied air pressure of 4.0 bar. The experimental results found that 1000 mg/L of sodium hypochlorite concentration effectively eliminated Pseudomonas aeruginosa, Clostridium perfringens and Bacteriophage MS2 colonies.</div>","PeriodicalId":54842,"journal":{"name":"Journal of Electrostatics","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48613365","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The effect of combining wavy and W-type collecting electrodes on the properties of electrostatic precipitators 波浪型和w型收集电极组合对静电除尘器性能的影响

IF 1.8 4区工程技术

Journal of Electrostatics Pub Date : 2023-05-01 DOI: 10.1016/j.elstat.2023.103818

Angel Asipuela González, Moath Bani Fayyad, Tamás Iváncsy

引用次数: 0

Design and experimental characterization of an electrostatic spring 静电弹簧的设计与实验表征

IF 1.8 4区工程技术

Journal of Electrostatics Pub Date : 2023-05-01 DOI: 10.1016/j.elstat.2023.103812

M. Tajmar, M. Kößling

引用次数: 0

A vibratory-type triboelectric charging device design of experiments based modelling for controllable and uncontrollable parameters effect study 振动型摩擦充电装置的设计基于实验的可控和不可控参数建模效果研究

IF 1.8 4区工程技术

Journal of Electrostatics Pub Date : 2023-05-01 DOI: 10.1016/j.elstat.2023.103816

Salah Atroune , Nabil Taib , Boukhalfa Bendahmane , Amar Tilmatine , Lucian Dascalescu

{"title":"A vibratory-type triboelectric charging device design of experiments based modelling for controllable and uncontrollable parameters effect study","authors":"Salah Atroune , Nabil Taib , Boukhalfa Bendahmane , Amar Tilmatine , Lucian Dascalescu","doi":"10.1016/j.elstat.2023.103816","DOIUrl":"10.1016/j.elstat.2023.103816","url":null,"abstract":"<div>The aim of the present paper is to study the effect of the controllable and uncontrollable parameters on the charge per mass ratio of the triboelectrical vibratory charging device. The controllable parameters are related to the device, which are the feed rate, the particle velocity, and the length of the vibrating plate. The uncontrollable ones are those related to the intrinsic properties of the materials involved in the triboelectrical charging. The design of experiments approach, leading to model the system, is used to determine the optimal operating parameters of the vibratory feeding of the mechanism triboelectric charging for plastic pellets. A series of tribocharging experiments are conducted on acrylonitrile-butadiene-styrene (ABS) and high-impact polystyrene (HIPS) granules, with a particle size of 1–2 mm, to figure out the behavior of materials representing uncontrollable parameters and the limit range of controllable parameters. The obtained results, based on the design of experiments method, show the influence of control and correlation between the controllable parameters to get a satisfied charge per mass ratio, which is also strongly influenced by the uncontrollable parameters.</div>","PeriodicalId":54842,"journal":{"name":"Journal of Electrostatics","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49133112","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0