| Main Title |
Influence of fly ash compositional factors on electrical volume resistivity / |
| Author |
Bickelhaupt, R. E.
|
| CORP Author |
Southern Research Inst., Birmingham, Ala.;Environmental Protection Agency, Washington, D.C. Office of Research and Development. |
| Publisher |
U.S. Environmental Protection Agency, |
| Year Published |
1974 |
| Report Number |
EPA/650-2-74-074; SORI-EAS-74-247-2938-F; EPA-68-02-0284; EPA-ROAP-21ADJ-029 |
| Stock Number |
PB-237 698 |
| OCLC Number |
09632208 |
| Subjects |
Fly ash ;
Coal ;
Air--Pollution ;
Electrical resistance
|
| Additional Subjects |
Fly ash ;
Air pollution ;
Electrical resistance ;
Coal ;
Boilers ;
Combustion products ;
Porosity ;
Lithium ;
Sodium ;
Iron ;
Charge carriers ;
Chemical analysis ;
Temperature ;
Air pollution control
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EJBD |
EPA 650-2-74-074 |
|
Headquarters Library/Washington,DC |
06/30/2014 |
| EKBD |
EPA-650/2-74-074 |
|
Research Triangle Park Library/RTP, NC |
11/16/2016 |
| ELBD ARCHIVE |
EPA 650-2-74-074 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| NTIS |
PB-237 698 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
viii, 41 pages : tables, charts ; 28 cm |
| Abstract |
The report gives results of a study during which 28 fly ash samples--representing a broad spectrum of ash compositions produced by burning coal in commercial power station boilers--were characterized, chemically analyzed, and fabricated into sintered-disc resistivity specimens. Resistivity and transference experiments were performed in the temperature range in which volume conduction prevails. Results confirmed conclusions of an earlier investigation: the volume conduction mechanism for fly ash is ionic; and the charge carriers are the alkali metal ions, principally sodium. Increasing iron concentration caused a resistivity decrease for a given level of sodium and lithium. From these data, empirical equations were developed to predict the volume resistivity of fly ash as a function of ash chemistry, temperature, and porosity. |
| Notes |
"EPA/650-2-74-074." "July 1974." |
