Record Display for the EPA National Library Catalog


Main Title Onset of electrical breakdown in dust layers: 2 : effective dielectric constant and local field enhancement /
Author Young, R. P. ; DuBard, J. L. ; Sparks, L. E.
Other Authors
Author Title of a Work
DuBard, James L.
Sparks, Leslie E.
CORP Author Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab. ;Southern Research Inst., Birmingham, AL.
Publisher U.S. Environmental Protection Agency, Air and Energy Engineering Research Laboratory,
Year Published 1988
Report Number EPA/600/J-88/289
Stock Number PB89-197214
Additional Subjects Dust control ; Dielectric properties ; Electrical faults ; Electric fields ; Particles ; Electrostatic precipitators ; Air pollution control equipment ; Test chambers ; Temperature ; Numerical analysis ; Debye-Scherer method ; Reprints
Library Call Number Additional Info Location Last
NTIS  PB89-197214 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 8 pages ; 28 cm
Part 1 of the work has shown that electrical breakdown in dust layers obeys Paschen's Law, but occurs at applied field values which appear too small to initiate the breakdown. In the paper the authors show how an effective dielectric constant characterizing the dust layer can be determined from AC dielectric measurements and the theory of Debye. When combined with an expression for the enhanced local electric field in the void spaces between particles in the layer, field strengths which are large enough to initiate electrical breakdown in the layer are predicted at relatively low values of applied field. The effect of temperature and dust layer thickness on the onset of electrical breakdown within the dust layer can also be explained by the dependence of the effective dielectric constant on these parameters. (Copyright (c) APCA, 1988.)
"Journal article." "EPA/600/J-88/289." "Published in JAPCA, 38:12, pp. 1518-1522, December 1988. Part 1 published in JAPCA, 38:11, pp 1412-1418, November 1988." "Leslie E. Sparks, project officer/author." Microfiche.