Corrigendum to “Electrical characteristics of electrostatic precipitator with a wet membrane-based collecting electrode” [J. Electrost. 80 (2016) 85]

Wang, Xiang; Chang, Jiang; Xu, Chunyan; Wang, Peng; Cui, Lin; Ma, Chunyuan

doi:10.1016/j.elstat.2018.03.008

Cited by 2 publications

(2 citation statements)

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“…Electrons and ions collide with some large droplets during migration and diffusion, causing the droplets to be charged. The average charge carried by a droplet increases with the radius of the droplet [31]. Under the action of an electric field force, the negatively charged droplets move toward the grounded plate electrode, and the positively charged droplets move toward the needle electrode and are eventually collected.…”

Section: Coalescence Of Droplets On the Needle Surfacementioning

confidence: 99%

Coalescence and counterflow of droplets on needle electrode with negative corona discharge

Wang¹,

Li²,

Xiao³

et al. 2022

Plasma Sources Sci. Technol.

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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 needle-plate electrode is adopted to explore the coalescence rule of droplets attached on the discharge electrode surface in high-humidity environment, and realize the counterflow of droplets. The experimental results show that the amount of coalesced droplets on the needle electrode surface reaches the maximum under -7.5 kV at relative humidity ~ 94% and ambient temperature ~ 20 ℃. When the applied voltage increases from -6 kV to -11 kV, the droplet moves up 2.76 mm in 5 s. The size of attached droplet depends on the balance of coalescence and evaporation. The coalescence is mainly attributed to the dielectrophoretic force caused by the high electric field gradient. The evaporation is related with the ionic wind generated by the corona discharge. As for the counterflow phenomenon of droplet, we speculate that the high concentration gradient of positive ions near the needle electrode provides a driving force for the negatively charged droplets. Meanwhile, the electrons and negative ions below the needle tip offer a repulsive force to the droplet. The shape and moving direction of the droplet attached on the needle surface can be manipulated by changing the voltage applied to the needle electrode, which shows the potential application value in realizing self-cleaning of electrode, liquid lens and so on.

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Section: Coalescence Of Droplets On the Needle Surfacementioning

confidence: 99%

Coalescence and counterflow of droplets on needle electrode with negative corona discharge

Wang¹,

Li²,

Xiao³

et al. 2022

Plasma Sources Sci. Technol.

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show abstract

“…In the papers written by Tiecheng Wang et al, the PDP could be used on remediating the soils polluted by p-nitrophenol, pentachlorophenol and phenol etc. In their investigations, the effect of electrical parameters, soil properties and gas conditions were studied to clarify the critical factors for the polluted soil remediation by the PDP process [25][26][27][28]. For broadening the application range of PDP on soil remediation, it is needed to choose more kinds of organic compounds as target compounds and then to explore the application potential of the PDP technique in the soil remediation in depth.…”

Section: Introductionmentioning

confidence: 99%

Kinetic analysis of soil contained pyrene oxidation by a pulsed discharge plasma process

Wang

Zhou

Guo

2016

Plasma Sci. Technol.

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A pulsed discharge plasma (PDP) reactor with net anode and net cathode was established for investigating the pyrene degradation in soil under different pulse peak voltage, air flow rate, pyrene content in soil, initial pH value and initial water content of the soil. Pyrene oxidation within the 60 min discharge time was fitting according to the pseudo-first order equation and the corresponding reaction kinetics constants (k values) were calculated. The obtained results show that pyrene oxidation under all the different reaction conditions obeyed the pseudo-first order equation well. Higher pulsed peak voltage and appropriate air flow rate were in favor of the increase of reaction rate of pyrene oxidation. A higher k value could be achieved in the lower initial pyrene content (the value was 100 mg kg −1). The k value of pyrene oxidation in the case of pH=4 was 11.2 times higher than the value obtained under the condition of pH=9, while the initial water content of the soil also has a large effect on the oxidation rate of pyrene due to the effect of PDP.

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Corrigendum to “Electrical characteristics of electrostatic precipitator with a wet membrane-based collecting electrode” [J. Electrost. 80 (2016) 85]

Cited by 2 publications

References 0 publications

Coalescence and counterflow of droplets on needle electrode with negative corona discharge

Coalescence and counterflow of droplets on needle electrode with negative corona discharge

Kinetic analysis of soil contained pyrene oxidation by a pulsed discharge plasma process

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