ESP precharger shows promise in solving ash-resistivity problems
Recent tests of a temperature-controlled electrode charger (TCEP) show that it may be an economical fix for both high-resistivity-related problems and increased particulate loadings resulting from application of a particular SO2 control strategy. The TCEP would reportedly be relatively easy to install in an existing precipitator. Operation of the TCEP in a low-sulfur coal flue gas stream is demonstrated as well as the pipe-manifold design of the TCEP. Several advantages to this design are presented. Two of them include: the welded pipe structure is simple to fabricate and is very durable; and the structural rigidity of the system effectively distributes the rapping force and provides effective cleaning. An economical analysis by Denver Research Institute is presented which indicates that the installation of two TCEPs in the ESP was half the cost of SO3 conditioning and less expensive than a fabric filter.
- OSTI ID:
- 6310756
- Journal Information:
- Power; (United States), Vol. 128:9
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
54 ENVIRONMENTAL SCIENCES
FLUE GAS
DESULFURIZATION
FLY ASH
ELECTRIC CONDUCTIVITY
PRECIPITATION
FOSSIL-FUEL POWER PLANTS
ELECTROSTATIC PRECIPITATORS
AIR POLLUTION ABATEMENT
COMBUSTION PRODUCTS
SULFUR DIOXIDE
TEMPERATURE EFFECTS
AEROSOL WASTES
ASHES
CHALCOGENIDES
CHEMICAL REACTIONS
ELECTRICAL PROPERTIES
EQUIPMENT
GASEOUS WASTES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POLLUTION ABATEMENT
POLLUTION CONTROL EQUIPMENT
POWER PLANTS
RESIDUES
SEPARATION PROCESSES
SULFUR COMPOUNDS
SULFUR OXIDES
THERMAL POWER PLANTS
WASTES
200202* - Fossil-Fueled Power Plants- Waste Management- Noxious Gas & Particulate Emissions
500200 - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)