Combination of Electrospray with Electrostatic Precipitator for Collection Efficiency Enhancement of Fine Particles

—Electrospray was employed upstream of an electrostatic precipitator (ESP) to enhance the collection efficiency of monodisperse nanometer-sized particles. The electrospray of deionized water produced water droplets with a size range from several tens to several hundreds μm. The visible combined effect of the ESP with the electrospray was found for the collection of particles larger than about 200 nm. The combination of the ESP and the electrospray was also found to be effective in reducing the energy consumption of ESP.