Particle Removal Characteristics of A High-Velocity Electrostatic Mist Eliminator

Abstract

In this study, we developed a flat plate-type wet electrostatic precipitator that generates stable corona discharge compared to wire-type discharge electrodes. Particle removal efficiencies were compared among differing shapes of the discharge electrode, including varying horizontal and vertical distances between spiked edges, and varying the height of the discharge pin support. When the horizontal distance between spiked edges was increased to 36 mm, the vertical distance between spiked edges increased to 54 mm, and when the height of the discharge pin support was increased to 76 mm, the removal efficiency of PM10 was maintained at approximately 60.0%. Furthermore, the removal efficiency of particles over 5 µm was about 80% or greater. When the flow rate was 4 m s -1 , the gap between collection plates was 60 mm, and -14 kV was applied to the discharge electrode. The particle removal efficiency of the flat plate-type electrostatic precipitator was maintained when the horizontal and vertical distances between spiked edges and the height of the discharge pin support were below threshold levels. Those variables may be important factors for designing the shape of the discharge electrode. Therefore, when designing electrostatic precipitators with multiple channels, the discharge electrode weight and processing costs must be considered when determining the optimal horizontal and vertical distances between spiked edges and the height of discharge pin support.

Materials degradation in non-thermal plasma generators by corona discharge

“…Cold plasma technology has been recently researched and its potentials validated, through functional prototypes, for a wide set of industrial applications including innovative refrigeration systems 1 – 3 , bacterial inactivation processes 4 – 7 , surface treatment procedures and many others 8 – 10 . There are several configurations 7 , 11 , 12 that have been studied for the creation of related devices, capable of applying cold plasma to different industrial fields, from robotics to medical devices, from drones to space appliances.…”

Present cum future of SARS-CoV-2 virus and its associated control of virus-laden air pollutants leading to potential environmental threat – A global review

“…Electrostatic mist eliminator is another variant of conventional mist eliminator where removal of particulate matter above 5μm accounted for >80% whereas the PM 10 removal accounts for about 60% using the flow rate of 4 m/s. It consists of a discharge plate/ electrode, collection plate, aerosol spectrometer, etc as its main components which increase the collection efficiency of particulate matters resembling the design prospect of an electrostatic precipitator [181] . The mist eliminators have extensive implications and implementations in any of the acid regulation or acid production plants namely sulfuric acid plants.…”

Materials degradation in non- thermal plasma generators by corona discharge

“…Integrating equation (6), for the experiments done on the degradation benches, the results shown in Figure 5 are obtained. These test benches have been studied at a higher service power to obtain the limit of accumulated energy density that an electrode can handle.…”

“…Cold plasma technology has been recently researched and its potentials validated, through functional prototypes, for a wide set of industrial applications including innovative refrigeration systems [1][2][3] , bacterial inactivation processes [4,5] , surface treatment procedures and many others [6][7][8] . There are several configurations [9][10][11] that have been studied for the creation of related devices, capable of applying cold plasma to different industrial fields, from robotics to medical devices, from drones to space appliances.…”