A novel technique electrostatic precipitator for dust removal of intake air system in Iraqi gas power station using COMSOL multiphysics

Most power plants used in Iraq are gas power stations, and one of the most critical factors that affect the efficiency of the gas turbine is the inlet air quality thus due to the dusty weather most of the year, especially in the summer season where it’s a problem in terms of limiting electricity production. The available filtration systems to filter undesired particles used in the inlet air unit are Conventional filters, including inertial separators and media-type filters; they usually are replaced when they become dirty. Particulate emissions from industrial operations such as boilers, furnaces, and the like may be controlled by an electrostatic precipitator (ESP). In this work, A novel technique is used, Presenting ESP in the purification of inlet air of gas turbine unit to enhance the air quality in dusty surroundings avoiding the loss of power production. A sectional electrostatic precipitator with cubic dimensions of 1m was established to remove Particles Matter (PM) from the air as a pre-stage filtration system. The airflow was channelled over through the corona discharge field, which was laden with PM, and then the charged particles were attracted to the grounded plates and accumulated there, where the efficiency of this electrostatic precipitator system is about 98%, with the benefits of extending the interval between filter changes from four months to six to eight months, in addition to upgrading the air intake system from having only the pressure difference reading to reading the flow rate, temperature and the density of fine particles of air in the intake air unit.