The Effect of Inlet Wind Speed on the Performance of Electrostatic Precipitation Systems and Double Rotating Venturi Systems

To solve the problem of atmospheric pollution caused by dust generated in the coal transportation and coal-fired processes of power plants, this article compares two common dust removal technologies, electrostatic precipitator and Venturi dust collector, and simulates electrostatic precipitators under different wind speeds using COMSOL. Simulation study of the flow characteristics of a double rotating Venturi dust collector using a k-ε turbulence model. The results show that as the inlet air velocity increases, the velocity of the flow field inside the electrostatic precipitator also increases. The maximum velocity occurs near the discharge electrode, and the particle collection efficiency is highest when the inlet wind speed is 15 m/s, but the dust removal efficiency is below 50%. The flow field inside the Venturi can be exactly simulated by the k-ε turbulence modeling. As the inlet air velocity increases, the outlet air velocity of the double rotating Venturi dust collector also increases. When the inlet liquid velocity is 0.35 m/s, the maximum flow rate of liquid inside the venturi is 40.26 m/s.