首页|Numerical simulation of the characteristics of oil mist particles deposition in electrostatic precipitator
Numerical simulation of the characteristics of oil mist particles deposition in electrostatic precipitator
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The electrostatic precipitator (ESP) is widely used in the purification of oil mist particles in the industrial workshops. Different from the solid particles, the deposition of oil mist particles in the ESP can reach a steady state and form a saturated oil film on the electrode plate. Based on the deposition experiment data, this paper has established the oil film flow model in ESP coupled with the corona discharge, the gas flow and the oil mist particle deposition model. The characteristics of oil mist particles deposition and the oil film flow were studied. The results show that the oil film is thin in the electrode plate where the current density is high. The oil film is thick at the inlet of ESP and the corresponding collection plate in the middle of the adjacent electrode wires. The peak value appears at the corresponding plate in the middle of the first two electrode wires, which is more man 50 μm. The average oil film thickness is about 9 μm in the current study. As the inlet velocity increases or the applied voltage decreases, the oil film distribution becomes more uniform, and the oil holding capacity of the electrode plate increases.
Oil mistElectrostatic precipitatorDepositionEulerian wall film
Hao Gao、Zhengwei Long、Zhuangbo Feng
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Tianjin Key Lab. of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China
School of Architecture, Southeast University, 2 Sipailou, Nanjing 210096, China
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