Record Display for the EPA National Library Catalog


Main Title A technique for predicting fly ash resistivity /
Author Bickelhaupt, Roy E.
CORP Author Southern Research Inst., Birmingham, AL.;Industrial Environmental Research Lab., Research Triangle Park, NC.
Publisher U.S. Environmental Protection Agency, Industrial Environmental Research Laboratory ; National Technical Information Service [distributor,
Year Published 1979
Report Number EPA-600/7-79-204; EPA-68-02-2114
Stock Number PB80-102379
OCLC Number 08395367
Subjects Fly ash ; Electrostatic precipitation ; Electrostatic precipitation ; Fly ash
Additional Subjects Fly ash ; Air pollution control ; Electrostatic precipitators ; Electrical resistivity ; Coal ; Industrial wastes ; Combustion products ; Laboratory equipment ; Sulfur dioxide ; Volume ; Surfaces ; Acid resistance ; Computer programs ; BASIC programming language ; Fortran
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD  EPA 600-7-79-204 Headquarters Library/Washington,DC 03/30/2016
EKBD  EPA-600/7-79-204 Research Triangle Park Library/RTP, NC 05/23/1997
ELBD ARCHIVE EPA 600-7-79-204 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
ESAD  EPA 600-7-79-204 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB80-102379 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation ix, 105 p. : ill. ; 28 cm.
The report gives results of research to develop a technique for predicting: the electrical resistivity of fly ash from as-received, ultimate coal analysis; and the chemical composition of the concomitant coal ash produced by simple laboratory ignition. Important chemical factors are the alkali metals, alkaline earths, and iron (with respect to the fly ash), and the water and sulfur trioxide concentrations in the flue gas. Many fly ash samples were evaluated to minimize variations due to physical effects. The effects of fly ash chemical composition, ash layer field strength, and the water and sulfur trioxide concentrations in the test environment were evaluated with respect to electrical resistivity and the evaluated parameters for the entire temperature spectrum of interest. Equipment and techniques were developed to obtain the required data. Predicted sensitivity as a function of temperature was favorably proof-tested using data acquired from previous field evaluations of precipitators at six power generating stations. The proof test involved a comparison of predicted resistivity, laboratory measured resistivity, resistivity measured in situ, precipitator efficiency, and current density of the precipitator outlet fields.
"Southern Research Institute." "August 1979." Includes bibliographical references. "Contract no. 68-02-2114, program element no. EHE624."