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Abstract
Electrostatic precipitators have been used widely in industry, and play an important role in environmental protection. Electrostatic precipitator (ESP) can be operated with a high collection efficiency and a low-pressure DROP. Electrostatic precipitation is a technique to remove suspended particles in a gas using an electrostatic force. Electrostatic precipitator (ESP) has been used widely in various industries such as utility boilers, cements kilns, etc ... Moreover, ithas been applied in cleaning of indoor air in houses, offices, hospitals, and factories. Performance of ESP deteriorates by abnormal phenomena, including back corona for treating high resistivity dust, abnormal re-entrainment for low resistivity dust,
and corona quenching for fine dusts.
Wet ESP can also remove dusts and gaseous pollutants simultaneously; these new
advancements will widen the field of application of electrostatic precipitation. Some novel applications of ESP are removal of dioxin from incinerators.
The main objective of this work is to develop a numerical method for modeling a wire¬cylinder ESP under high voltage DC. Then using the developed model, the physical phenomena of an ESP under high voltage ’DC are investigated by analyzing the distribution of electric parameters inside an ESP such as potential distribution, electric field distribution, space charge density distribution, current density distribution, and their
interactions in the presence of dust.
The simulation results introduced in the thesis is generated using a developed Matlab program. This developed program investigates two conditions. The first investigates the ESP parameters without dust loading. This condition is called the dust free condition. The
second one investigates the ESP parameters when the dust is loaded. This condition is called the dust-loaded condition. In addition, it also investigates the ESP collecting
efficiency for the chosen shape.