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Electrostatic charge decay and filtration performance of nonwoven filters in the vicinity of grounded metal grids.
- Source :
-
Journal of Electrostatics . Mar2021, Vol. 110, pN.PAG-N.PAG. 1p. - Publication Year :
- 2021
-
Abstract
- Most studies on corona-charged nonwoven filters have used grounded electrodes during charging and surface potential measurements but not during filtration experiments. This study was focused on the investigation of a grounded metal grid effect on the filtration efficiency. The results showed that the filtration outcome strongly depends on the filter–grid distance. Moreover, the electric charge was maintained for a considerably long duration when the ground electrode was used, which led to an increase in the filtration efficiency. The efficiency exceeded 90% at a voltage of 10 kV with the grid and was <70% at 30 kV without the grid. • Potential decay and filtration performance of corona charged filters were investigated. • The effect of a grounded metal grid on the filtration efficiency was investigated. • The "filter–grid" distance affects both potential decay and filtration efficiency. • Electric charges are kept longer on the filter surface with the grid electrode. • The filtration performance was significantly improved with the grid electrode. [ABSTRACT FROM AUTHOR]
- Subjects :
- *ELECTRIC charge
*SURFACE charges
*SURFACE potential
*SURFACE charging
*METALS
Subjects
Details
- Language :
- English
- ISSN :
- 03043886
- Volume :
- 110
- Database :
- Academic Search Index
- Journal :
- Journal of Electrostatics
- Publication Type :
- Academic Journal
- Accession number :
- 149220099
- Full Text :
- https://doi.org/10.1016/j.elstat.2021.103554