DYNAMICS OF MICROPARTICLE DEPOSITION ON ELECTRODES IN ELECTROSTATIC PRECIPITATORS AND OPTIMIZATION OF COLLECTION EFFICIENCY
Keywords:
electrostatic precipitator; thermal power plant; collection efficiency; Deutsch–Anderson equation; migration velocity; energy efficiencyAbstract
The article theoretically develops innovative methods for increasing the collection efficiency of particles on the electrodes of electrostatic filters at thermal power plants. It presents theoretical modeling and parametric optimization, as well as scientific solutions aimed at reducing energy consumption.
Relevance: The relevance of this study lies in improving technologies for filtering, neutralizing, and utilizing harmful anthropogenic gases directly emitted from furnaces at thermal power plants and various metallurgical factories, with the aim of enhancing energy efficiency. All obtained results have been analyzed and validated under laboratory conditions, comply with environmental standards, and contribute to achieving higher energy efficiency.
Objective/Aim: To scientifically substantiate the optimal operating parameters for enhancing the collection efficiency of electrostatic precipitators (ESPs) at thermal power plants (TPPs).
Methodology: Based on the Deutsch–Anderson equation, the dynamics of particle migration were modeled, and the functional relationships between electric field strength (E), gas flow velocity (), particle diameter (dₚ), and specific collection area (SCA) were determined using both experimental and theoretical methods.
Results: At the optimal parameters (E = 3.0 × 10⁵ V/m, = 1.8 m/s, SCA = 70 m²/(m³/s)), the collection efficiency reached 99.45%. A linear relationship between the migration velocity (ω) and the electric field (E) was observed within the range E < 3.5 × 10⁵ V/m, while at E > 4 × 10⁵ V/m, a decrease in efficiency was noted due to ion recombination.
Scientific Novelty: For the first time, a scientifically substantiated combination of optimal parameters for enhancing the energy efficiency of electrostatic precipitators (ESPs) at thermal power plants has been established.
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