TY - JOUR
T1 - Theoretical Model of Single Fiber Efficiency and the Effect of Microstructure on Fibrous Filtration Performance: A Review
AU - Bai, \Hedan
AU - Qian, Xiaoming
AU - Fan, Jintu
AU - Shi, Yunlong
AU - Duo, Yongchao
AU - Guo, Changsheng
AU - Wang, Xiaobo
N1 - Funding Information:
This work was supported by Tianjin City Applied Foundation and Frontier Technology Research Program (Grant No. 16JCZDJC36400).
Publisher Copyright:
© 2020 American Chemical Society.
PY - 2021/1/13
Y1 - 2021/1/13
N2 - Fibrous filters are widely used in manufacturing and separation industries to remove aerosol particles produced in the production process. However, due to the complex internal structure of fibrous filters, there are still some problems to be investigated. In the first part of this review, the different theoretical analyses of the flow field distribution around the fiber is summarized. In a comparison of the various theoretical models of flow fields with the simulation results, the Kuwabara-Happel flow field model has the best applicability. The theoretical models of single fiber filtration by five mechanisms: diffusion, interception, inertial impaction, gravity settling, and electrostatic effects are summarized. One of the other outstanding questions is the effect of fibrous microstructure characteristics on filtration efficiencies, such as the composite layer structure, the heterogeneity of the fibrous filters, and the fiber orientation. Finally, critical gaps in the literature and necessary directions for future investigations are also given.
AB - Fibrous filters are widely used in manufacturing and separation industries to remove aerosol particles produced in the production process. However, due to the complex internal structure of fibrous filters, there are still some problems to be investigated. In the first part of this review, the different theoretical analyses of the flow field distribution around the fiber is summarized. In a comparison of the various theoretical models of flow fields with the simulation results, the Kuwabara-Happel flow field model has the best applicability. The theoretical models of single fiber filtration by five mechanisms: diffusion, interception, inertial impaction, gravity settling, and electrostatic effects are summarized. One of the other outstanding questions is the effect of fibrous microstructure characteristics on filtration efficiencies, such as the composite layer structure, the heterogeneity of the fibrous filters, and the fiber orientation. Finally, critical gaps in the literature and necessary directions for future investigations are also given.
UR - http://www.scopus.com/inward/record.url?scp=85100071872&partnerID=8YFLogxK
U2 - 10.1021/acs.iecr.0c04400
DO - 10.1021/acs.iecr.0c04400
M3 - Review article
SN - 0888-5885
VL - 60
SP - 3
EP - 36
JO - INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
JF - INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
IS - 1
ER -