Record Display for the EPA National Library Catalog


Main Title Rapping reentrainment in a nearly full scale pilot electrostatic precipitator /
Author Spencer, Herbert Ward,
CORP Author Southern Research Inst., Birmingham, Ala.;Industrial Environmental Research Lab., Research Triangle Park, N.C.
Publisher U.S. Environmental Protection Agency, Office of Research and Development ; For sale by the National Technical Information Service,
Year Published 1976
Report Number EPA-600/2-76-140; SORI-EAS-76-061; SORI-3489-V; EPA-68-02-1875; EPA-ROAP-21ADL-027
Stock Number PB-255 984
OCLC Number 02545699
ISBN pbk.
Subjects Air--Pollution--Alabama. ; Electrostatic precipitation. ; Dust.
Additional Subjects Electrostatic precipitators ; Air pollution control equipment ; Dust control ; Flue dust ; Fly ash ; Particle size distribution ; Performance evaluation ; Particulates ; Stationary sources
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 600-2-76-140 Headquarters Library/Washington,DC 03/04/2014
EKBD  EPA-600/2-76-140 Research Triangle Park Library/RTP, NC 06/20/2003
ESAD  EPA 600-2-76-140 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-255 984 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation xi, 167 pages : illustrations, graphs ; 28 cm.
The report gives results of an experimental investigation of rapping reentrainment in a nearly full-scale pilot electrostatic precipitator. The study included a fundamental examination of the mechanics of removal of dry dust by rapping and the quantification of rapping reentrainment in terms of the percentage and the particle size distribution of the reentrained dust. During the study, the contribution of rapping reentrainment to total emissions ranged from 53 to 18%, depending on rapping conditions. These percentages corresponded to 5.4 and 2.7% of the dust collected on the plates being emitted from the precipitator during plate rapping. A major portion of the reentrained material was observed to result from hopper 'boil-up'. A decrease in rapping emissions was obtained by increasing the time interval between raps. The mass median diameters of the size distributions of the particles emitted during the raps were observed to increase with increased time between raps.
Prepared by Southern Research Institute, Birmingham, Alabama, under contract no. 68-02-1875, ROAP no. 21ADL-027, program element no. 1AB012. Includes appendix. Includes bibliographical references (p. 149-151).