NANOSYSTEMS: PHYSICS, CHEMISTRY, MATHEMATICS, 2018, 9 (4), P. 491–495
Investigation of the possibility for reducing agglomeration of aerosol nanoparticles by using the needle-plate corona charger
A. A. Efimov – Moscow Institute of Physics and Technology, Russia, 141700 Dolgoprudny, Institutskiy per., 9; newaldan@gmail.com
P.V. Arsenov – Moscow Institute of Physics and Technology, Russia, 141700 Dolgoprudny, Institutskiy per., 9
V.V. Ivanov – Moscow Institute of Physics and Technology, Russia, 141700 Dolgoprudny, Institutskiy per., 9
Moscow Institute of Physics and Technology, Russia, 141700 Dolgoprudny, Institutskiy per., 9;
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 electrofilterseparator, 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.
PACS 92.60.Mt, 82.70.Rr, 61.46.+w
DOI 10.17586/2220-8054-2018-9-4-491-495
