Separating polydisperse particles using electrostatic precipitators with wire and spiked-wire discharge electrode design

Sander, S.; Gawor, S.; Fritsching, Udo

doi:10.1016/j.partic.2017.05.014

Cited by 15 publications

(6 citation statements)

References 17 publications

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“…More efficient air filtration can collect dust particles and reduce smoke density better. The results are in line to the study conducted by Sander et al, [10] that compares the performance of ESP using wire as discharge electrodes with the performance of ESP using spiked wire as discharge electrodes. They found that ESP with spiked wire as discharge electrodes performs better due to it has a wider surface area than wire.…”

Section: Dust Filtration Experimentssupporting

confidence: 91%

“…The two studies provide important information that the results of the simulation-based study are consistent with the experimentalbased study that the ESP voltage has a major effect on the particle collection efficiency. Furthermore, the effect of electrode geometry parameters on ESP performance has also been studied by Sander et al, [10]. They compared the use of wire and spike-wire as discharge electrodes on ESP performance and found that ESP performance is superior with spike-wire compared to wire electrodes.…”

Section: Introductionmentioning

confidence: 99%

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Performance of Electrostatic Precipitator as Air Cleaner in Water Production Process from Humid Air

Anis

Hanif

Khoiron

et al. 2022

ARFMTS

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Humid air as a source of water can be utilized by using a condensation system called the Atmospheric Water Maker (AWM) in order to overcome the problem of limited drinking water supply. However, to maintain water quality and production capacity, the AWM requires an air filtration system with minimum flow resistance. In this work, an electrostatic precipitator (ESP) was used as an air filter for AWM application. Thus, this study aimed to investigate the performance of ESP in terms of particle collection efficiency and water quality produced by AWM. In order to evaluate the performance of ESP, wire to cylinder type ESP was designed and three experimental activities were performed i.e., smoke filtration test, dust filtration experiment, and AWM water quality assessment. The performance of ESP was studied at various voltages ranging from 5.8 kV to 9.7 kV and two wire mesh sizes. The results showed soot particles were successfully removed by the ESP for all applied voltages with both 1 mm and 4 mm wire mesh. The effect of ESP voltage could be observed in dust filtration experiments in which the particle collection efficiency increases with the increase of voltage. The highest particle collection efficiency was observed at a voltage of 9.7 kV with a wire mesh of 1 mm. The results also showed that the use of ESP for AWM application offered a positive effect on the quality of condensed water in which the water physical and chemical properties satisfy the WHO standard for drinking water.

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Section: Dust Filtration Experimentssupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Performance of Electrostatic Precipitator as Air Cleaner in Water Production Process from Humid Air

Anis

Hanif

Khoiron

et al. 2022

ARFMTS

View full text Add to dashboard Cite

show abstract

“…It was decided to add a similar number that could be connected to electrical forces. An equation for the electric Courant number (Coel) can already be found in literature [31], but different equation can be derived by dimensional analysis from the Alfvén-Courant number (ACo) (cf. [32]):…”

Section: Calculations Of the Other Parametersmentioning

confidence: 99%

Investigation of electrohydrodynamic calculations

Boskovic

Karač

Vrhovac

et al. 2022

Hem Ind

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A perfect dielectric model was incorporated into the OpenFOAM? software and used for investigation and, possibly, improvements of electrohydrodynamic calculations. Two different sets of numerical simulations were analyzed, in which two different fluids were present. The first set was one-dimensional, while in the second, a drop of one fluid was surrounded by the other fluid. It is shown that oscillations and possible artificial generation of a curl of the electric field strength can be observed at applying certain expressions or calculation strategies, which can be thus abandoned. Usage of dynamic meshes, at least those present in the used software, and of limiters for the gradient of the electric field strength can lead to large numerical errors. It is also shown that usage of certain cell face values could improve the results. An electric Courant number was derived by dimensional analysis, and it could be suggested for future calculations. Conclusions made in this paper are expected to be transferable to other more complicated models.

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“…However, it has been verified that the rigidbody collision assumption can be invalid as the particle size approaches to the nanoscale. The gas-nanoparticle intermolecular interactions (for example, van der Waals interactions [20,21] or the ion-induced dipole interactions when the particle is charged [22] ) should be taken into account. [23][24][25][26] Luo et al [16] theoretically investigated the shear lift of spherical nanoparticles in a shear rarefied gas flow and obtained the analytical expression for the shear lift force…”

Section: Introductionmentioning

confidence: 99%

Effect of the particle temperature on lift force of nanoparticle in a shear rarefied flow*

Su¹,

Wang²

2021

Chinese Phys. B

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The nanoparticles suspended in a shear flow are subjected to a shear lift force, which is of great importance for the nanoparticle transport. In previous theoretical analysis on the shear lift, it is usually assumed that the particle temperature is equal to the temperature of the surrounding gas media. However, in some particular applications, the particle temperature can significantly differ from the gas temperature. In the present study, the effect of particle temperature on the shear lift of nanoparticles is investigated and the corresponding formulas of shear lift force are derived based on the gas kinetic theory. For extremely small nanoparticles (with radius R < 2 nm) or large nanoparticles (R > 20 nm), the influence of the particle temperature can be neglected. For the intermediate particle size, the relative error induced by the equal gas-particle temperature can be significant. Our findings can bring an insight into accurate evaluation of the nanoparticle transport properties.

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Separating polydisperse particles using electrostatic precipitators with wire and spiked-wire discharge electrode design

Cited by 15 publications

References 17 publications

Performance of Electrostatic Precipitator as Air Cleaner in Water Production Process from Humid Air

Performance of Electrostatic Precipitator as Air Cleaner in Water Production Process from Humid Air

Investigation of electrohydrodynamic calculations

Effect of the particle temperature on lift force of nanoparticle in a shear rarefied flow*

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