ESP performance for various dust densities

Podlinski, J.; Niewulis, A.; Mizeraczyk, J.; Atten, P.

doi:10.1016/j.elstat.2008.01.003

Cited by 56 publications

(28 citation statements)

References 22 publications

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“…Increasing the particle concentration also increases the space charge due to particles, what results in a reduction of the corona current. Obtained results qualitatively agree with the experimental data [15]. …”

Section: Discussionsupporting

confidence: 82%

“…a reduction of about 40 %. This estimate fairly well agrees with measurements presented in [15], although exact comparison of the concentration levels is not possible, as in the experiments the dust has a poly-dispersed size distribution.…”

Section: Voltage-current Characteristicssupporting

confidence: 81%

“…The dust-generated space charge adds to the ionic space charge. As the total space charge produces the same effect on the electric field on the wire, an increase in dust concentration reduces the ions concentration and, therefore, the total corona current under the same voltage [15].…”

Section: Voltage-current Characteristicsmentioning

confidence: 99%

“…What is more important, the charged particles can significantly contribute to the magnitude of EHD flow. Experimental investigations published in [15] indicate that the mean values of the dust and ionic space charge densities can be comparable. In this situation the flow velocity and the level of its turbulence strongly depend on the dust density, especially in the region close to the corona wire.…”

mentioning

confidence: 99%

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Numerical Simulation of the 2-D Gas Flow Modified by the Action of Charged Fine Particles in a Single-Wire ESP

Adamiak

Atten

2009

IEEE Trans. Dielect. Electr. Insul.

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Abstract-A numerical model for simulating precipitation of submicrometer particles in a single-wire electrostatic precipitator is discussed in this paper. It includes all essential phenomena affecting the process: electric field, space charge density, gas flow, including the secondary electrohydrodynamic flow caused by the corona discharge and charged particles, and particle transport. A simplified corona model assumes just one ionic species and neglects the ionization zone. The fully coupled model for the secondary EHD flow, considering the ion convection, has been implemented. The dust particles are charged by ionic bombardment and diffusion. The gas flow pattern is significantly modified by the secondary EHD flow, which depends on the particle concentration. As for fine particles the drift velocity is small and particles practically follow the gas streamlines, the particle concentration has a very strong effect on the precipitation efficiency.

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Section: Discussionsupporting

confidence: 82%

Section: Voltage-current Characteristicssupporting

confidence: 81%

Section: Voltage-current Characteristicsmentioning

confidence: 99%

mentioning

confidence: 99%

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Numerical Simulation of the 2-D Gas Flow Modified by the Action of Charged Fine Particles in a Single-Wire ESP

Adamiak

Atten

2009

IEEE Trans. Dielect. Electr. Insul.

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“…[22][23][24][25] From another point of view, single wire-duct arrangement is being used over a wide range as discharge electrodes in the electrostatic precipitators. [26][27][28][29] Therefore, the corona discharges were studied in this paper inside dry air fed single wire-duct reactor under positive dc voltage. The corona current-voltage characteristics curves have been measured in parallel with the ozone concentration generated inside the reactor under different discharge conditions.…”

Section: Introductionmentioning

confidence: 99%

Positive direct current corona discharges in single wire-duct electrostatic precipitators

2016

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This paper is aimed to study the characteristics of the positive dc corona discharges in single wire-duct electrostatic precipitators. Therefore, the corona discharges were formed inside dry air fed single wire-duct reactor under positive dc voltage at the normal atmospheric conditions. The corona current-voltage characteristics curves have been measured in parallel with the ozone concentration generated inside the reactor under different discharge conditions. The corona current-voltage characteristics curves have agreed with a semi empirical equation derived from the previous studies. The experimental results of the ozone concentration generated inside the reactor were formulated in the form of an empirical equation included the different parameters that were studied experimentally. The obtained equations are valid to expect both the current-voltage characteristics curves and the corresponding ozone concentration that generates with the positive dc corona discharges inside single wire-duct electrostatic precipitators under any operating conditions in the same range of the present study.

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Laser Investigations of Flow Patterns in Electrostatic Precipitators and Nonthermal Plasma Reactors

Mizeraczyk¹,

Podlinski²,

Niewulis³

et al. 2010

Industrial Plasma Technology

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ESP performance for various dust densities

Abstract: -In this paper, results of Particle Image Velocimetry (PIV) measurements of the electrohydrodynamic (EHD) flow velocity fields in an electrostatic

Cited by 56 publications

References 22 publications

Numerical Simulation of the 2-D Gas Flow Modified by the Action of Charged Fine Particles in a Single-Wire ESP

Numerical Simulation of the 2-D Gas Flow Modified by the Action of Charged Fine Particles in a Single-Wire ESP

Positive direct current corona discharges in single wire-duct electrostatic precipitators

Laser Investigations of Flow Patterns in Electrostatic Precipitators and Nonthermal Plasma Reactors

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