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Numerical and Experimental Study of Microscopic Particles Distribution Under Corona Discharge: Case of Wire‐Cylinder Electrostatic Precipitator
Author(s) -
SEMMAR NADJIB,
KHALIJ MOHAMED,
RIGO MARIEODILE
Publication year - 1999
Publication title -
annals of the new york academy of sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.712
H-Index - 248
eISSN - 1749-6632
pISSN - 0077-8923
DOI - 10.1111/j.1749-6632.1999.tb08789.x
Subject(s) - electrostatic precipitator , coalescence (physics) , corona discharge , mechanics , particle (ecology) , cylinder , materials science , range (aeronautics) , convection , electrode , physics , composite material , mechanical engineering , engineering , oceanography , quantum mechanics , astrobiology , geology
The behaviour of microscopic particles under a corona discharge is studied in this paper. The convection‐diffusion equation is resolved in the case of wire‐cylinder electrodes by a finite differences method. Selection of this configuration allows to eliminate the complex EHD interactions observed in the case of wire‐plate electrostatic precipitators. Otherwise, particle size measurements are realised in a lab‐scale electrostatic precipitator for atmospheric aerosols. Their linear distribution is consequently verified over the range [0.5 ‐ 2.0 μm]. In other words, particle‐particle, wall‐particle interactions and coalescence phenomena might be reasonably neglected in the case of dilute gas flows under strong electric fields.