The main aim of this investigation was an experimental analysis of the air
cleaning efficiency in a mock-up next-generation air cleaning device -
one-level 8-channel industrial cyclone-separator with quarter-rings - while
changing parameters of the inner structure and the assessment of the effects
of dispersion of particulate matter. Therefore, the research was carried out
in two stages: the first stage covered the analysis of the efficiency of the
multi-channel cyclone with particulate matter of <20 and <50 ?m. During the
second stage, a cascade impactor was used to measure the particle collection
efficiency in the multi-channel cyclone by fractions: PM1, PM2.5 and PM10.
Results of the tests with using the cascade impactor were compared to show
changes in the PM composition before and after the multi-channel
cyclone-separator. According to the obtained experimental data, the
one-level 8-channel cyclone-separator collects 70 to 80 % of PM up to 10 ?m
in size, 45 to 60 % of PM up to 2.5 ?m in size and 21 to 25 % of PM up to 1
?m in size.