Study on performance of electrostatic precipitator under multi-physics coupling
Bing Chen1, Hongjiao Li2, Yuzhong He3
1School of Mechanical Engineering, University of Science and Technology Beijing, Beijing, 100083, China. bingchen9803@ustb.edu.cn.
Environmental Science and Pollution Research International
|October 31, 2019
Summary
This study developed a wire-plate electrostatic precipitator (ESP) to optimize particle collection. Key findings show particle diameter and wire spacing significantly impact ESP performance, crucial for efficient design.
Area of Science:
- Environmental Engineering
- Electrical Engineering
- Fluid Dynamics
Background:
- Electrostatic precipitators (ESPs) are vital for industrial air pollution control.
- Understanding particle transport and influencing factors is crucial for ESP performance optimization.
Purpose of the Study:
- To analyze particle transport characteristics in a wire-plate ESP.
- To investigate the influence of various factors on ESP performance.
- To provide a basis for ESP design and optimization.
Main Methods:
- Experimental setup for current density distribution measurement.
- Numerical simulation using COMSOL/Multiphysics with Finite Element Method (FEM).
- Multi-physics coupling calculations to assess influencing factors.
Main Results:
- Particle diameter positively correlates with charge, force, and motion.
- Relative permittivity affects collecting efficiency by influencing particle charging.
- Optimal wire-to-wire spacing (80 mm) maximizes efficiency and corona current.
- Established a cubic function relationship between electric field strength, corona current density, and standard deviation.
Conclusions:
- Particle properties, electrode configuration, and operating conditions significantly influence ESP performance.
- Airflow velocity impacts collecting efficiency and particle precipitation.
- The study offers valuable insights for designing and optimizing ESPs.
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