Problems and Recent Advances in Aerosol Filtration

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Abstract
Particles to be collected in fiber filters must be transported to the fiber surface and retained there. The collection efficiency θ can therefore be written as θ = ηh where η is the collision efficiency, which describes the transport of particles to the fibers, and h is adhesion probability. The results of both theoretical and experimental studies of η and h are presented. It is shown that electrostatic effects can have a major influence on collision efficiency.