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For General Industry
Particles larger than three microns are collected when their momentum prevents them from following gas streamlines around fibres. They leave the streamline, strike a fibre and are collected by the fibre.
Between 1.0 and 3.0 micron size particles tend to follow the gas streamlines as they flow relatively close to fibres. A 1.0 micron particle, for example, passing within 0.5 micron of a fibre will be collected by the fibre.
Extremely fine particles have random side-to-side movement caused by collisions with gas molecules. A 0.1 micron particle will have about ten times the Brownian movement or random motion of a 1.0 micron particle, greatly increasing the probability of collision with a fibre.
After collection, the mist droplets coalesce on the individual fibres in the fibre bed and begin to drain.
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