Electrostatic Stimulation of Fabric Filtration |
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| Authors: | G. P. Greiner D. A. Furlong D. W. VanOsdell L. S. Hovis |
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| Affiliation: | 1. ETS, Inc. , Roanoke , Virginia , USA;2. Research Triangle Institute , Research Triangle Park , North Carolina , USA;3. U.S. Environmental Protection Agency , Research Triangle Park , North Carolina , USA |
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| Abstract: | The concept of electrostatic stimulation of fabric filtration (ESFF) has been investigated at pilot scale. The pilot unit consisted of a conventional baghouse in parallel with an ESFF baghouse, allowing direct comparison. All results reported in this paper are for pulse-cleaned bags in which the electric field was maintained parallel to the fabric surface. The performance of the ESFF baghouse has been superior to the parallel conventional baghouse by several measures. The ESFF baghouse demonstrated: (1) a reduced rate of pressure drop increase during a filtration cycle, (2) lower residual pressure drop, (3) stable operation at higher face velocities, and (4) improved particle removal efficiency. These benefits can be obtained with only minor modifications to conventional pulse-jet hardware and at low electrical power consumption. The indicated ability to operate at increased face velocities with only modest expenditure for electrical hardware leads to very favorable economic projections. |
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