Numerical Model of Current-Voltage Curve for the Wire-Cylinder Electrostatic Precipitators in Negative Voltage in the Presence of Nonpolar Gases

The aim of this paper is to develop a numerical model that takes into account the share of the electric current produced by free electrons when an electrostatic precipitator (ESP) with a wire-cylinder geometry is supplied with a negative voltage and the carrier gas is nonpolar. This model improves t...

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Bibliographic Details
Published in:IEEE transactions on plasma science 2010-08, Vol.38 (8), p.2031-2040
Main Authors: Villot, A, Gonthier, Y F J, Gonze, E, Bernis, A
Format: Article
Language:English
Subjects:
Catalysis
Chemical and Process Engineering
Chemical Sciences
Cleaning
Corona
Current
Current carriers
Current-voltage curves
Electric currents
Electric potential
Electrodes
Electrons
electrostatic precipitator (ESP)
Electrostatic precipitators
Engineering Sciences
Exact sciences and technology
Free electrons
Gases
Mathematical models
nonpolar gas
Nonpolar gases
numerical modeling
Numerical models
Other topics in plasma physics and electric discharges
Physics
Physics of gases, plasmas and electric discharges
Physics of plasmas and electric discharges
Plasma
Pressure
spark over
Stemming
Temperature
Voltage
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Summary:The aim of this paper is to develop a numerical model that takes into account the share of the electric current produced by free electrons when an electrostatic precipitator (ESP) with a wire-cylinder geometry is supplied with a negative voltage and the carrier gas is nonpolar. This model improves the understanding of ESPs and highlights the parameters that affect the process behavior and the generation of free electrons. It takes into account the current stemming from the presence of free electrons. For this reason, a coefficient was developed and was expressed as a function of the temperature, pressure, and composition of the carrier gas. Experimental results obtained by other authors and laboratory measurements were compared with the model. The set of results showed that the numerical model developed in this paper is valid only in the presence of nonpolar gases.
ISSN:0093-3813
1939-9375
DOI:10.1109/TPS.2010.2052373