Investigation of the possibility for reducing agglomeration of aerosol nanoparticles by using the needle-plate corona charger
https://doi.org/10.17586/2220-8054-2018-9-4-491-495
Abstract
The results of the research are given to show the possibility of reducing the agglomeration of aerosol nanoparticles using the needle-plate corona charger. It has been found that the charger fulfills the functions of an electrofilter-separator, precipitating large particles of agglomerates at a size more than 250 nm, leaving smaller non-agglomerated particles in the flow. Using the developed charger allows us to significantly reduce the agglomeration of particles at sufficiently low aerosol flow rates. As a result of changing the parameters of the charger (corona discharge current from 35 to 215 µA, aerosol flow through the charger from 33 to 250 l/min and the corona polarity), the mean particle size decreases more than in 1.5-fold.
Keywords
the needle-plate charger,
agglomeration,
aerosol nanoparticles,
aerosol,
the multi-spark discharge generator
Supporting agencies: This work in the experimental part of this study was supported by the Russian Science Foundation (project No. 15-19-00190) and in the theoretical part was supported by the grant of the President of Russian Federation for young scientists MK-2302.2017.8.
About the Authors
A. A. Efimov
Moscow Institute of Physics and Technology
Russian Federation
Russian Federation
141700 Dolgoprudny, Institutskiy per., 9
P. V. Arsenov
Moscow Institute of Physics and Technology
Russian Federation
Russian Federation
141700 Dolgoprudny, Institutskiy per., 9
V. V. Ivanov
Moscow Institute of Physics and Technology
Russian Federation
Russian Federation
141700 Dolgoprudny, Institutskiy per., 9
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Review
For citations:
Efimov A.A., Arsenov P.V., Ivanov V.V. Investigation of the possibility for reducing agglomeration of aerosol nanoparticles by using the needle-plate corona charger. Nanosystems: Physics, Chemistry, Mathematics. 2018;9(4):491-495. https://doi.org/10.17586/2220-8054-2018-9-4-491-495
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