Discharge characteristic of barbed electrodes in electrostatic precipitator

Chen, Bing; Guo, Yanning; Li, Hongjiao; Zhou, Wenning; Liu, Baiqian

doi:10.1016/j.elstat.2020.103528

Cited by 6 publications

(4 citation statements)

References 11 publications

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“…In addition, if comparing the amount of dust stuck on the collection electrode along the length of the tube, Figure. 17 (a) shows that the dust on the collector tube is concentrated at the opposite position of the barbed, similar to the studies by Y. Tong [11] and Bing Chen [12], this once again shows the efficiency of using barbed discharge electrode, optimizing this parameter also helps to increase dust filtration performence.…”

Section: Resultssupporting

confidence: 75%

“…The discharge electrode corresponding to the collector electrode has thirteen stainless steel wire, diameter d = 3mm [1]. Charges are often concentrated at sharp vertices and edges, so to increase the ability to generate static electricity, the tip of the round wire be sharpened and welded short sharp wire on the body as shown in Figure 6 (b) [11,12]. The wire is fixed on the frame with a stainless steel box size of 10x20x1.2mm.…”

Section: Design and Manufacturementioning

confidence: 99%

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Design and Manufacture of Welding Fumes Electrostatic Precipitator and Parameter Study on Filtration Performance

Nguyen

Bui

2022

AMM

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Currently, the fumes and dust generated from metal cutting and welding are not often treated well in many factories. This paper presents the results of designing, manufacturing the welding fumes filter system by applying electrostatic precipitator methods as well as studying the factors affecting performance of filters. There are many factors that affect the efficiency of electrostatic precipitator filtration, in this study, the welding fumes filter was experimented with parameters of gas flow velocity, filter pipe diameter and power capacity to find out the appropriate parameters. The outlet air quality was measured with a dust concentration gauge and the Box-Behnken method was used to determine the relationship among experimental parameters. The filter parameters are optimized to achieve 99% of filtration efficiency. The research results will be applied in practice to ensure the health of users and improve the surrounding environment as well.

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Section: Resultssupporting

confidence: 75%

Section: Design and Manufacturementioning

confidence: 99%

Design and Manufacture of Welding Fumes Electrostatic Precipitator and Parameter Study on Filtration Performance

Nguyen

Bui

2022

AMM

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“…Inspired by the efficient dust removal from barbed corona wire, decorating sharp discharge tips on the discharge electrode is a promising idea to optimize the electrostatic fog harvester. The enhancement effect of protrusions on the ionic wind discharge current has already been experimentally demonstrated, especially in the application of electrostatic precipitation [38,[40][41][42], fog harvesting [32] and so on. However, the enhancement mechanism at the microscopic level is less reported, which is what we are concerned with in this manuscript.…”

Section: Introductionmentioning

confidence: 95%

“…In industrial electrostatic dusting, barbed wire is an alternative to smooth wire due to its superior discharge characteristics, e.g. high discharge current [38,39]. Inspired by the efficient dust removal from barbed corona wire, decorating sharp discharge tips on the discharge electrode is a promising idea to optimize the electrostatic fog harvester.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of the enhancing effect of micro–nano protrusions on electrostatic fog harvesting

Zhang

Xiao

et al. 2023

J. Phys. D: Appl. Phys.

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Fog harvesting is one potential approach to provide supplementary water resources in arid areas. Considerable researches have been devoted to electrostatic fog harvesting technology, but there are still some problems such as high voltage, complex structure and expensive cost. Decorating micro-nano protrusions on the electrode is an effective method to lower operating voltage, improve fog harvesting efficiency, and the enhancement effect of protrusions has already been experimentally demonstrated. However, the enhancement mechanism on the microscopic level is less reported. This manuscript tries to explain why the micro-nano protrusions can enhance the discharge and fog harvesting by numerical simulation. Three key processes of corona discharge, fog droplet migration, and fog harvesting efficiency are discussed in detail, especially the influence of droplet size, tip radius of protrusion, protrusion-protrusion angle and so on. The numerical simulation results show that the inception voltage of barbed electrode decreases from 7 kV to 3 kV (decrease in 57%), and current increases significantly (e.g. 68% at 15 kV). At 15 kV, the fog harvesting efficiency of barbed electrode is higher (29.8%) than that of smooth wire (25.7%), even with less effective collection area. The collection efficiency increases with the droplet size and exists an optimized ratio (~1‰) of protrusion tip radius and wire radius to gain high collection efficiency. This research results are beneficial for understanding the microscopic mechanism of protrusions enhancing electrostatic fog harvesting and providing guidance for further fog harvesting equipment improvement.

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An experimentally validated computational model to predict the performance of a single-channel laboratory-scale electrostatic precipitator equipped with spiked and wire discharge electrodes

Arif

Branken

Everson

et al. 2021

Journal of Electrostatics

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Discharge characteristic of barbed electrodes in electrostatic precipitator

Cited by 6 publications

References 11 publications

Design and Manufacture of Welding Fumes Electrostatic Precipitator and Parameter Study on Filtration Performance

Design and Manufacture of Welding Fumes Electrostatic Precipitator and Parameter Study on Filtration Performance

Numerical simulation of the enhancing effect of micro–nano protrusions on electrostatic fog harvesting

An experimentally validated computational model to predict the performance of a single-channel laboratory-scale electrostatic precipitator equipped with spiked and wire discharge electrodes

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