RELATIONS BETWEEN THE LOCATION OF FIBRES AND FILTRATION PROPERTIES

Abstract

This contribution is focused on the relations between the fibre orientation and the air filtration properties. The fiber orientation is intended as the orientation of fibre to main stream or as the alignment of fibres each other. There are two reasons to study this problem. The relation between theoretical model and real filter and the possibility how to increase the filter quality due to fiber orientation.

The definitions of the filter characteristics, filter properties and the filtration mechanisms are noted and short view to velocity field is outlined.

The first examined model is the "cube" model where the same aligned fibrous object is oriented in different directions to the main stream. This model provides interesting information but some discrepancies too.

The second examined model compare the flat filters with different alignment of fibres each other. It seems that this parameter affect the filter properties markedly.

Both models are examined in relation to the drop in pressure and the filter efficiency.

Citation

Hruza, J. and Havlicek, P. (2003), "RELATIONS BETWEEN THE LOCATION OF FIBRES AND FILTRATION PROPERTIES", Research Journal of Textile and Apparel, Vol. 7 No. 2, pp. 18-25. https://doi.org/10.1108/RJTA-07-02-2003-B003