Dust particles precipitation in AC/DC electrostatic precipitator

Electrostatics 2015

物理学;数学

Jaworek, A.^1 ; Marchewicz, A.^1 ; Krupa, A.^1 ; Sobczyk, A.T.^1 ; Czech, T.^1 ; Antes, T.^2 ; liwiski, L.^2 ; Kurz, M.^2 ; Szudyga, M.^2 ; Roznowski, W.^2

Institute of Fluid Flow Machinery, Polish Academy of Sciences, Fiszera 14, Gdañsk, Poland^1

RAFAKO S.A., ESP Division, Gómoslaska 3A, Pszczyna, Poland^2

关键词: Alternating electric field charger;    Collection efficiency;    Dust particle;    Gas cleaning;    Parallel plates;    PM2.5 particles;    Submicron;    Two-stage;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/646/1/012031/pdf
DOI  :  10.1088/1742-6596/646/1/012031

来源: IOP

【 摘 要 】

Submicron and nanoparticles removal from flue or exhaust gases remain still a challenge for engineers. The most effective device used for gas cleaning in power plants or industry is electrostatic precipitator, but its collection efficiency steeply decreases for particles smaller than 1 micron. In this paper, fractional collection efficiency of two-stage electrostatic precipitator comprising of alternating electric field charger and DC supplied parallel-plate collection stage has been investigated. The total number collection efficiency for PM2.5 particles was higher than 95% and mass collection efficiency >99%. Fractional collection efficiency for particles between 300 nm and 1 μm was >95%.