Electrohydrodynamic gas flow regime map in a wire-plate electrostatic precipitator under positive coronas

Author

Chang, J.S. ; Dekowski, J. ; Podlinski, J. ; Brocilo, D. ; Urashima, K. ; Mizeraczyk, J.

Author_Institution

Dept. of Eng. Phys., McMaster Univ., Hamilton, Ont., Canada

fYear

2005

fDate

16-19 Oct. 2005

Firstpage

461

Lastpage

464

Abstract

In this paper, the particle image velocimetry (PIV) measurements of the flow velocity fields in a wire-plate type electrostatic precipitator (ESP) positive polarity were analyzed for wide range of Reynolds and electrohydrodynamic numbers, and their influence on the dust particle collection efficiency was investigated. The results show that the dust particle collection was influenced by electrohydrodynamic (EHD) secondary flow when Ehd/Re2≥1 and ReSc≥FE , where Sc is the Schmidt number and FE is the electric field number.

Keywords

corona; dust; electrohydrodynamics; electrostatic precipitators; plates (structures); velocimeters; Reynolds number; Schmidt number; dust particle collection; electric field number; electrohydrodynamic gas flow; particle image velocimetry measurement; positive corona; secondary flow; wire-plate electrostatic precipitator; Corona; Electrohydrodynamics; Electrostatic analysis; Electrostatic measurements; Electrostatic precipitators; Fluid flow; Image analysis; Iron; Particle measurements; Velocity measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation and Dielectric Phenomena, 2005. CEIDP '05. 2005 Annual Report Conference on

Print_ISBN

0-7803-9257-4

Type

conf

DOI

10.1109/CEIDP.2005.1560720

Filename

1560720