TY - JOUR
T1 - Transport mechanics and collection of submicrometer particles in fibrous filters
AU - Shapiro, Michael
AU - Kettner, Itzchak J.
AU - Brenner, Howard
N1 - Funding Information:
Acknowledgements - This work was supported by the U.S. Army Research Office (Contract No. DAAL03.-~7-Ko. 0128). M. Shapiro acknowledges the support of the Basic Research Foundation administered by the Israel Academy of Science and Humanities, by the Fund for the Promotion of Research at the Technion and by the Technion VPR. Fund--B. and I. Green Research Fund.
PY - 1991
Y1 - 1991
N2 - Characteristic filtration lengths of fibrous filters collecting spherical submicrometer aerosol particles are calculated over a wide range of particle sizes and filtration operating parameters. The calculations were based upon the dispersion/reaction model for aerosol transport and filtration in porous filters, and were performed for spatially periodic models of fibrous arrays of circular cylinders in square arrays. Several orientations of the direction of mean air flow relative to the lattice axes were investigated. A comparison between our theoretical results, available experimental data, and the results of competitive filtration models, demonstrated the greater efficacy of our dispersion/reaction model in correlating characteristic filtration lengths of submicrometer particles possessing diameters less than 0.3-0.5 μm. The filtration rate of larger particles, governed primarily by the interception mechanism, is shown to be sensitive to the choice of the direction of the mean air flow relative to the axes of the periodic array.
AB - Characteristic filtration lengths of fibrous filters collecting spherical submicrometer aerosol particles are calculated over a wide range of particle sizes and filtration operating parameters. The calculations were based upon the dispersion/reaction model for aerosol transport and filtration in porous filters, and were performed for spatially periodic models of fibrous arrays of circular cylinders in square arrays. Several orientations of the direction of mean air flow relative to the lattice axes were investigated. A comparison between our theoretical results, available experimental data, and the results of competitive filtration models, demonstrated the greater efficacy of our dispersion/reaction model in correlating characteristic filtration lengths of submicrometer particles possessing diameters less than 0.3-0.5 μm. The filtration rate of larger particles, governed primarily by the interception mechanism, is shown to be sensitive to the choice of the direction of the mean air flow relative to the axes of the periodic array.
UR - http://www.scopus.com/inward/record.url?scp=0025903282&partnerID=8YFLogxK
U2 - 10.1016/0021-8502(91)90064-O
DO - 10.1016/0021-8502(91)90064-O
M3 - 文章
AN - SCOPUS:0025903282
SN - 0021-8502
VL - 22
SP - 707
EP - 722
JO - Journal of Aerosol Science
JF - Journal of Aerosol Science
IS - 6
ER -