The effect of pleat count and air velocity on the initial pressure drop and fractional efficiency of HEPA filters
I.S. Al-Attar
Richard J. Wakeman
Steve Tarleton
A. Husain
2134/5621
https://repository.lboro.ac.uk/articles/conference_contribution/The_effect_of_pleat_count_and_air_velocity_on_the_initial_pressure_drop_and_fractional_efficiency_of_HEPA_filters/9245993
The importance of clean air to the well-being of people and industrial applications has highlighted the
critical role of air filters performance. Accurate filter performance prediction is important to estimate
filter lifetime and reduce energy and maintenance operating costs. To ensure appropriate filter
selection for a specific application, the effect of pleat count and surface area on filter design and
performance has been investigated. This paper examines the effects of air velocity on permeability
during operation of HEPA pleated V-shaped filters, and the effect of pleat count on the initial pressure
drop and fractional efficiency using DEHS testing according to DIN 1822. An empirical equation for
predicting the efficiency of the filter is suggested.
2009-12-08 11:40:11
Air filters
Fractional efficiency
Gas cleaning
HEPA filter
Permeability
Pressure drop
Chemical Engineering not elsewhere classified