Single fibre filtration theory

Filtration mechanism and single fibre filtration theory in nonwoven filters... [Pg.285]

Filtration of particles through nonwoven filters is depth filtration rather than surface filtration. The particle capture capacities of a nonwoven filter are based on the interactions between targeted particles, individual fibres of the filter, and the fluid molecules, and the dust particles captured by nonwoven filters are described by using single fibre particle collection theory. The filter efficiency of nonwoven filter, which is composed of many individual fibres, depends on the particle collection efficiency of a single fibre. The equation defining overall filter efficiency of a nonwoven fabric in dry air filtrations, Y(d(), for any particle size, (L, and the set of conditions is as follows ... [Pg.285]

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