Abstract
Collection efficiencies of a point-to-plane electrostatic precipitator were evaluated as functions of particle size, aerosol flow and ion current. Monodisperse aerosols ranging from 0.03 to 2.0 μm were used. Collection efficiencies decrease with 1) an increase of aerosol flow rate, 2) a decrease of particle size and 3) an increase of ion current. At the lowest tested flow, 100 cm3min, the effects of ion current and particle size seem to be minimal. Average efficiencies were found to be 90, 85 and 85% over the entire particle size range used in this study, for ion currents of 1.0, 3.5 and 5.0 microamperes respectively.