Advanced electrostatic enhancement of fabric filtration

Technical Report · Tue Oct 01 04:00:00 EDT 1985

OSTI ID:5950738

Mosley, R B; Hovis, L S; Plaks, N; Yamamoto, T; Viner, A S

The paper discusses laboratory and pilot-plant studies of a modification of the U.S. EPA's Electrically Stimulated Fabric Filtration (ESFF) method in which corona voltage on a center-wire electrode replaces the subcorona electrodes at the bag surface. The electric field which affects enhancement results from the high potential maintained on the center wire. The mechanism that supports the observed increase in gas flow consistent with the theoretical model involves the nonuniform deposition of the charged dust as a result of forces exerted on the particles in the electric field perpendicular to the bag. Laboratory results show an extremely low rate of pressure drop increase during the filtration cycle, only 10-30% of the rate associated with conventional reverse-air fabric filtration. Pilot-plant data indicate a corresponding increase in flow through electrified bags. The rudiments of a mathematical model for describing the electrical deposition of the dust are presented.

• Research Organization: Research Triangle Inst., Durham, NC (USA)
• OSTI ID: 5950738
• Report Number(s): PB-86-117371/XAB
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
424000* -- Engineering-- Pollution Control Equipment-- (1980-1989)
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR FILTERS
COMBUSTION PRODUCTS
DUSTS
ELECTRIC FIELDS
ELECTRODES
EQUIPMENT
FABRIC FILTERS
FILTERS
FUNCTIONAL MODELS
INDUSTRIAL WASTES
PARTICLES
PARTICULATES
PILOT PLANTS
POLLUTION CONTROL EQUIPMENT
WASTES