Three-dimensional analysis of electrohydrodynamic flow in a spiked electrode-plate electrostatic precipitator

Farnoosh, Niloofar; Adamiak, K.; Castle, G.S.P.

doi:10.1016/j.elstat.2011.06.002

Cited by 40 publications

(8 citation statements)

References 14 publications

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“…When electric field boundary condition is used, the outer sides are considered as zero charge symmetry, as shown in Eq. (15). The electrical voltage ( = 0 ) is fixed at the tip of electrode and the ground is = 0.…”

Section: Model Verificationmentioning

confidence: 99%

“…For induced flow, electrostatic precipitation has a very complex interaction between the electric field, gas, and particulate flow. The motion and precipitation of dust particles in electrostatic precipitation depends on the electric field, space charge, gas flow field, and dust particle properties . For mixing processes, studies demonstrating the enhancement of heat transfer and mass transport, especially with respect to evaporators and condensers, has been performed .…”

Section: Introductionmentioning

confidence: 99%

“…The motion and precipitation of dust particles in electrostatic precipitation depends on the electric field, space charge, gas flow field, and dust particle properties. [13][14][15] For mixing processes, studies demonstrating the enhancement of heat transfer and mass transport, especially with respect to evaporators and condensers, has been performed. [16][17][18][19] The rapid control of performance by varying the applied electric field, the simple design, and low power requirements are all advantages of the application of EHD.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Flow control with electrode bank arrangements by electrohydrodynamics force for heat transfer enhancement in a porous medium

Ayuttaya¹,

Chaktranond

Rattanadecho

2018

Heat Trans. Asian Res.

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Active flow control with electrohydrodynamics (EHD) force in the channel flow has been numerically investigated for enhancing heat transfer. This study focuses on the effect of electrode bank arrangements and the number of electrodes on corona wind and fluid flow for heat transfer onto a porous medium. Aligned and staggered configurations of electrode banks are compared. The numerical results show that electric field intensity depends on electrical voltage and the number of electrodes. Shear flow is increased with larger numbers of electrodes and in the aligned configuration, resulting in the enhancement of vortex strength. The swirling flow from staggered configurations spread wider than that of aligned configurations, but the aligned configuration produced more turbulence. In addition, the temperature distribution in the channel flow is increased with increasing numbers of electrodes. With the effect of swirling flow, airflow above the porous sample surface is faster leads the heat to more transfer to the porous sample surface. This causes the temperature of porous medium to increase rapidly so the convective heat transfer coefficient on porous medium surface is increased. Finally, the modified case of the numerical results is validated against the experimental results. The experimental flow visualization is based on the incense smoke technique, in order to verify the accuracy of the swirling flow pattern subjected to the electric field. It is shown that the comparison results in both techniques are in good agreement.

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Section: Model Verificationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Flow control with electrode bank arrangements by electrohydrodynamics force for heat transfer enhancement in a porous medium

Ayuttaya¹,

Chaktranond

Rattanadecho

2018

Heat Trans. Asian Res.

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“…13,20 Numerous studies on the discharge characteristics of wire-plate ESPs have been reported; these studies include investigations of emitter geometry and material on the electrode corona discharge to optimize the discharge electrode through experimental and numerical methods. [21][22][23][24][25] Electrodes with different shapes, diameters, and intervals were tested in an experimental-scale ESP at high temperatures, 26,27 and migration velocity was also investigated. 28,29 Corona discharge and particle collection characteristics in a wet ESP with a ne water mist were discussed.…”

Section: Introductionmentioning

confidence: 99%

Current density distribution and optimization of the collection electrodes of a honeycomb wet electrostatic precipitator

et al. 2018

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“…The subject of EHD flows behaviour in ESPs in the steady state (or timeaveraged mode) has been undertaken and widely described by theoretical [e.g. [8][9][10] and experimental [e.g. [11][12][13][14][15] researchers.…”

Section: Introductionmentioning

confidence: 99%

Electrohydrodynamic Flow Evolution in a Narrow Wire-Plate Electrostatic Precipitator

Podlinski

Garasz

Berendt

et al. 2017

ELECTROTECHNICAL REVIEW

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In this study, the temporal and spatial evolution of the electrohydrodynamic (EHD) flow for a high voltage positive pulse in a wire-plate electrostatic precipitator (ESP) is investigated, using the Time-Resolved Particle Image Velocimetry (PIV) method. The ESP consisted of a single wire electrode supplied by a positive high voltage and a two grounded plate electrodes. The images recorded just after applying the high voltage as well as velocity field maps of the EHD flow of the dust particles suspended in the air are presented. The results illustrate the temporal and spatial evolution of the EHD flow for different applied voltages and for cases without and with externally forced flow. Streszczenie. W niniejszym artykule przedstawiono wyniki badań rozwoju przepływu elektrohydrodynamicznego (EHD) w elektrofiltrze z jedną drutową elektrodą wyładowczą zasilaną dodatnimi impulsami napięciowymi oraz z dwiema uziemionymi elektrodami płytowymi. Do badań wykorzystano czasowo-rozdzielczą metodę anemometrii obrazowej. Zaprezentowane wyniki ukazują rozwój przepływu EHD dla różnych napięć oraz dla przypadków bez i z wymuszonym przepływem (Rozwój przepływu elektrohydrodynamicznego w wąskim elektrofiltrze typu drut-płyty).

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Three-dimensional analysis of electrohydrodynamic flow in a spiked electrode-plate electrostatic precipitator

Cited by 40 publications

References 14 publications

Flow control with electrode bank arrangements by electrohydrodynamics force for heat transfer enhancement in a porous medium

Flow control with electrode bank arrangements by electrohydrodynamics force for heat transfer enhancement in a porous medium

Current density distribution and optimization of the collection electrodes of a honeycomb wet electrostatic precipitator

Electrohydrodynamic Flow Evolution in a Narrow Wire-Plate Electrostatic Precipitator

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