Effect of Face Velocity and the Nature of Aerosol on the Collection of Submicrometer Particles by Electrostatic Precipitator
Morawska, Lidia, Agranovski, Victoria, Ristovski, Zoran, & Jamriska, Milan (2002) Effect of Face Velocity and the Nature of Aerosol on the Collection of Submicrometer Particles by Electrostatic Precipitator. Indoor Air, 12(2), pp. 129-137.
Despite the electrostatic collection of aerosol particles is one of the most widely used air cleaning methods, there have not been sufficient amount of effort devoted to investigate its performance in the full range of operating conditions. This paper reports results of the tests of a two-stage electrostatic precipitator (ESP) conducted in the particle size range of 0.018 - 1.2m over a range of flow rates using NaCl and Environmental Tobacco Smoke (ETS) test aerosols. The total collection efficiency of the precipitator was found to increase with an increase in the count median diameter (CMD) of the particles, to have polynomial dependence on flow rate and no significant dependence on the type of test aerosol. The fractional efficiency of the precipitator was found to be dependent on flow rate. However, the “critical” particle size of about 1.2 m was found to exist when the fractional collection efficiency becomes independent of flow rate. For submicrometer particles, the collection efficiency was found to be independent of particle size at flow rates below 560 L.s-1. A minimum in the efficiency was observed in the 0.1 to 0.45 m particle size range and for particles smaller than about 0.02 m.
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|Item Type:||Journal Article|
|Additional Information:||The author-version of this article will be available 12 months after publication. For more information, please refer to the journal’s website (see hypertext link) or contact the author.|
|Keywords:||Air cleaning, Electrostatic precipitator, Efficiency tests, Submicrometer particles, Particle size distribution|
|Subjects:||Australian and New Zealand Standard Research Classification > PHYSICAL SCIENCES (020000) > OTHER PHYSICAL SCIENCES (029900) > Physical Sciences not elsewhere classified (029999)|
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Science and Technology|
|Copyright Owner:||Copyright 2002 Blackwell Publishing|
|Copyright Statement:||The definitive version is available at www.blackwell-synergy.com.|
|Deposited On:||10 Jan 2008|
|Last Modified:||09 Jun 2010 22:52|
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