Main Title |
Fine particle charging development / |
Author |
Pontius, D. H., ;
Felix, L. G. ;
McDonald, J. R. ;
Smith., W. B.
|
Other Authors |
|
CORP Author |
Southern Research Inst., Birmingham, Ala.;Industrial Environmental Research Lab., Research Triangle Park, N.C. |
Publisher |
Environmental Protection Agency, Office of Research and Development ; For sale by the National Technical Information Service, |
Year Published |
1977 |
Report Number |
EPA-600/2-77-173 |
Stock Number |
PB-271 727 |
OCLC Number |
03796508 |
ISBN |
pbk. |
Subjects |
Electrostatics
|
Additional Subjects |
Fines ;
Air pollution control equipment ;
Electrostatic precipitators ;
Particles ;
Electrostatics ;
Combustion products ;
Industrial wastes ;
Ions ;
Electric fields ;
Performance evaluation ;
Design criteria ;
Cost analysis ;
Pilot plants ;
Mathematical models ;
Aerosols ;
Feasibility ;
Changing ;
|
Internet Access |
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
EKBD |
EPA-600/2-77-173 |
|
Research Triangle Park Library/RTP, NC |
04/18/2003 |
ELBD ARCHIVE |
EPA 600-2-77-173 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
ESAD |
EPA 600-2-77-173 |
|
Region 10 Library/Seattle,WA |
03/23/2010 |
NTIS |
PB-271 727 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
xvi, 224 pages : illustrations ; 28 cm. |
Abstract |
The report gives results of theoretical and experimental investigations into the changing of fine particles by unipolar ions in an electric field, and evaluation of a specially designed small pilot-scale (600-1000 acfm) precharging device. Following an extensive review of the literature, a new theory was developed, predicting statistically the average charge per particle in a large collection of particles. The electrical mobility of particles charged under controlled conditions of ion density, charging time, electric field strength, and ion polarity was measured to determine the average charge per particle for comparison with the theory. Agreement between experimental results and theory was generally within 20%. The precharger evaluation, based on direct particle charge measurements and the effects on performance of a pilot-scale electrostatic precipitator of conventional design located downstream from the precharger, indicated that effective particle charging was achieved in accordance with the theoretical predictions. Particle migration velocities in the precipitator, with the precharger on, were up to 60% greater than with the precharger off. |
Notes |
Contract 68-02-1490, ROAP 21ADL-036, Program element 1AB012, sponsored by Industrial Environmental Research Laboratory, Office of Energy, Minerals, and Industry, Research Triangle Park, N.C. Issued Aug. 1977. Includes bibliographical references. |