||Electrostatic augmentation of fabric filtration : reverse-air pilot unit experience /
VanOsdell, D. W. ;
Furlong, D. A.
||Research Triangle Inst., Durham, NC. ;ETS, Inc., Roanoke, VA.;Industrial Environmental Research Lab., Research Triangle Park, NC.
|| U.S. Environmental Protection Agency, Industrial Environmental Research Laboratory,
||EPA/600/7-84/085; R-47U-1915; EPA-68-02-3186
Filter cloth. ;
Filters and filtration. ;
Air pollution control equipment ;
Air filters ;
Pilot plants ;
Industrial wastes ;
Combustion products ;
Fly ash ;
Performance evaluation ;
Design criteria ;
Fabric filters ;
Electrostatic fabric filters ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||130 pages : illustrations ; 28 cm
The report describes the use of a pilot unit (consisting of two baghouses in a parallel-flow arrangement on a slipstream from an industrial pulverized-coal boiler house) to test electrostatically augmented fabric filtration (ESFF) in a reverse-air cleaning mode. ESFF is characterized by electrodes arranged about 2 cm apart around the circumference of the bag and running the length of the bag. An electric field of 2-4 kV/cm is maintained between the electrodes and perpendicular to the gas flow. Research results showed that ESFF can reduce fabric filter pressure drops and may allow reverse-air filtration at a 2 cm/s face velocity, rather than the conventional 1 cm/s. A filter bag with stainless steel electrodes woven into the fabric was developed for the reverse-air tests as part of this research. The woven-in electrode and the potential for doubling the face velocity appear to make ESFF economically attractive for commercial baghouse users.
Caption title. "Sept. 1984." "EPA-600/7-84-085." Microfiche.