Influences of Gas Velocity and Particle Distribution on PM10 Collection in Wire-Plate ESP under Diffusion Charging Mechanisms

Jian Ping Zhang; Ai Xi Zhou; Yu Ying Du; Helen Wu; Jian Xing Ren; Dan Mei Hu

doi:10.4028/www.scientific.net/AMR.864-867.1399

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 864-867Influences of Gas Velocity and Particle...

Influences of Gas Velocity and Particle Distribution on PM10 Collection in Wire-Plate ESP under Diffusion Charging Mechanisms

Abstract:

To study the PM10 collection in a wire-plate ESP, a numerical model was built and performed by FLUENT software. Deutsch-Anderson Equation was subsequently applied to collection efficiency calculation. The numerical results under different gas velocities at inlet and particle distributions indicate that the collection efficiency of PM10 increases with a decrease in gas velocity, and that the increment of grade efficiency will become bigger if particle diameter gets smaller. By comparing with a decrease in gas velocity, diffusion charging mechanism is found to be valuable for PM10 in aspect of collection. As two parameters of Rosin-Rammler distribution decrease, grade efficiency will increase, especially for fine particles, and a larger positive effect the diffusion charging mechanism will have on collection efficiency, but overall efficiency will decrease. Finally, the effect of particle distributions on grade efficiency is much smaller than that of diffusion charging mechanism or the gas velocity at inlet.

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Periodical:

Advanced Materials Research (Volumes 864-867)

Pages:

1399-1407

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.864-867.1399

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Online since:

December 2013

Authors:

Jian Ping Zhang*, Ai Xi Zhou, Yu Ying Du, Helen Wu, Jian Xing Ren, Dan Mei Hu

Keywords:

Diffusion Charging, Gas Velocity, Particle Distribution, Pm10, Wire-Plate

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