A numerical model for predicting particle collection efficiency of electrostatic precipitators

Li, Shuran; Huang, Yarong; Zheng, Qiang; Deng, Guanlei; Yan, Keping

doi:10.1016/j.powtec.2019.02.040

Cited by 25 publications

(8 citation statements)

References 50 publications

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“…Two types of charging mechanisms are active in the field corona, the first charging process is due to the electric field, and the second is the diffusion charging process, particle charging occurs owing to phenomena of ion diffusion, in general terms, ions are transported by the electric field and Brownian motion (predominant in particles smaller than 0.2 μ [1,20]) which depends on the thermal energy of the ions, rather than the electric field [1].…”

Section: Particle Chargingmentioning

confidence: 99%

“…The equation which represents this process comes from White [1] as a reference of Arendt and Kallmann's research, the Eqs. ( 19) and ( 20) describes the particle charging by diffusion [1,20].…”

Section: Diffusion Charging Processmentioning

confidence: 99%

“…where m is the mass, w is the drift velocity, q is the charge, a p is the radius of the particle, E p is the peek collection-field intensity, and η is the gas viscosity, and C c is the Cunningham correction factor [1,20]. Assuming the particle will reach a uniform velocity when is attracted, the velocity rate can be dw/dt = 0, as a result, Eq.…”

Section: Particle Kineticsmentioning

confidence: 99%

“…With the sum of the field and diffusion charges the last equation, see Eq. ( 28) can be expressed [20,21] in terms of α. The parameter α(a) is a correction coefficient, which relates the particle radius and charging behavior.…”

Section: Particle Kineticsmentioning

confidence: 99%

See 3 more Smart Citations

Study and Numerical Simulation of the Electrical Properties of a Duct-Type Electrostatic Precipitator Using Seven Circular Corona Wires: A Review

Asipuela

Iváncsy

2022

Period. Polytech. Elec. Eng. Comp. Sci.

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The study of electrostatic precipitators (ESP) is of great importance in powder technology. Different physical and chemical processes occur during its operation. The objective of this investigation is to analyze and observe electrical phenomena using mathematical models such as Poisson's equation and the charge conservation equation. To carry out the simulation two flat plates and seven corona wires are geometrically arranged based on an ESP prototype. The general form of partial differential equations mentioned along with the boundary conditions was written in software and associated with the different parts of the geometry. For example, the electric field onset is calculated by Peak's law and set as one of the boundary conditions for the corona wires. Defining the space charge density distribution is an essential part because the next processes inside of ESP depend on this parameter. A specific method that splits the space charge density is used to solve these PDEs. Besides, a review of the concepts of the particle charging process, particle kinetics, and particle collection is introduced. The results obtained from the simulation such as the electric potential, electric field, and space charge density, agree with those proposed in some investigations.

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Section: Particle Chargingmentioning

confidence: 99%

Section: Diffusion Charging Processmentioning

confidence: 99%

Section: Particle Kineticsmentioning

confidence: 99%

Section: Particle Kineticsmentioning

confidence: 99%

See 2 more Smart Citations

Study and Numerical Simulation of the Electrical Properties of a Duct-Type Electrostatic Precipitator Using Seven Circular Corona Wires: A Review

Asipuela

Iváncsy

2022

Period. Polytech. Elec. Eng. Comp. Sci.

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“…An important part of the work is a numerical simulation, based on which it is possible to predict important parameters of the device. Numerical simulations have already been carried out by M. Ahmadi1 [16], S. Haque [17], L. Zhao [18], G. Skodras [19], Akinori Zukeran [20], Keping Yan [21], A. Mohebbi [22], and Baoyu Guo [23], who have studied the distribution of the electric field, the trajectory of the PM, the number of trapped particles, etc., utilizing 2D CFD models. The shape of the charging electrode is designed, which affects the charging process in the precipitator.…”

Section: Introductionmentioning

confidence: 99%

Design of a Low-Cost Electrostatic Precipitator to Reduce Particulate Matter Emissions from Small Heat Sources

et al. 2022

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Capturing particulate matter (PM) is an important issue due to the protection of human health and the quality of their life. This paper describes the innovation of an affordable particulate matter capture device for small heat sources to reduce particulate matter emissions. The design of two investigated variants of the device is based on the principle of a tubular electrostatic precipitator with one charging electrode placed in the chimney. The design of the precipitators is aimed at increasing the area of the collecting electrodes by elements dividing precipitation space, with a simultaneously increased number of charging electrodes. The influence of the elements’ application on the pressure drop and the gas flow velocity through the devices is analyzed by computational fluid dynamics (CFD). The work is further focused on the economic evaluation of precipitators and design adjustments for lower energy consumption. The achieved results show the right direction of efforts to improve the equipment designed to capture PM emissions.

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Design, optimization, and evaluation of a wet electrostatic precipitator (ESP) for aerosol collection

Badami

Tohidi

Aldekheel

et al. 2023

Atmospheric Environment

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A numerical model for predicting particle collection efficiency of electrostatic precipitators

Cited by 25 publications

References 50 publications

Study and Numerical Simulation of the Electrical Properties of a Duct-Type Electrostatic Precipitator Using Seven Circular Corona Wires: A Review

Study and Numerical Simulation of the Electrical Properties of a Duct-Type Electrostatic Precipitator Using Seven Circular Corona Wires: A Review

Design of a Low-Cost Electrostatic Precipitator to Reduce Particulate Matter Emissions from Small Heat Sources

Design, optimization, and evaluation of a wet electrostatic precipitator (ESP) for aerosol collection

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