Record Display for the EPA National Library Catalog

RECORD NUMBER: 238 OF 292

Main Title Relationship between fabric structure and filtration performance in dust filtration /
Author Draemel, Dean C.
CORP Author National Environmental Research Center, Research Triangle Park, N.C. Control Systems Lab.
Publisher Environmental Protection Agency, Office of Research and Development, NERC-RTP, Control Systems Laboratory ; for sale by National Technical Information Service,
Year Published 1973
Report Number EPA R2-73-288; EPA-21-ADJ-51
Stock Number PB-222 237
OCLC Number 06312564
Subjects Air--Pollution ; Filters and filtration
Additional Subjects ( Particles ; Filtration) ; ( Air pollution control equipment ; Filters) ; Air filters ; Air pollution ; Porosity ; Fly ash ; Limestone ; Silicon dioxide ; Pressure ; Performance ; Fabrics ; Fabric filters
Internet Access
Description Access URL
https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=9101IONT.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
EKBD  EPA-R2-73-288 Research Triangle Park Library/RTP, NC 06/15/2001
ELBD ARCHIVE EPA R2-73-288 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
NTIS  PB-222 237 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation vii, 75 pages : illustrations ; 28 cm.
Abstract
The report identifies a semi-empirical relationship for fabric air filters between clean cloth fabric structural parameters, dust parameters, and filtration performance. High outlet concentration caused by bleeding or seepage of dust is a function of the pore size distribution of the fabric vs. size properties of the dust. A significant number of pores with a characteristic dimension roughly 10 times the mass mean particle diameter of the dust being filtered leads to bleeding and seepage of dust. This conclusion results from studies with three dusts (fly ash, limestone, and silica), a number of fiber types, and a range of fabric construction variables. Pressure-related filtration performance can be correlated with clean fabric free area if yarn boundaries are well defined. Since many yarn boundaries are not well defined, clean cloth Frazier permeability may be used as an alternative method of correlating pressure-related filtration performance. (Author)
Notes
Prepared as an in-house report, Work Unit no. 21, ADJ 51.