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

In this paper, the particle image velocimetry measurements of the flow velocity fields in a wire-plate type electrostatic precipitator (ESP) with a single negatively polarized wire 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/Re/sup 2//spl ges/1 and ReSc/spl ges/F/sub E/, where Sc is the Schmidt number and F/sub E/ is the electric field number.