Western utilities opt for filters

Journal Article · Sun Jan 01 04:00:00 EST 1978 · Electr. Light Power (Boston); (United States)

OSTI ID:5165007

Smock, R

Experiences at two western utilities with fabric filters and electrostatic precipitators are summarized. Southwestern Public Service Company installed electrostatic precipitators in its first Harrington unit, but in the 350-MW Harrington unit 2, a filter system is being installed. The filter system purchased for Harrington unit 2 has 28 compartments, of which 25 are needed for full-load operation. Each compartment has 204 bags that are each 11.5 inches in diameter, 30.5 feet long, and made of silicone/graphite coated fiberglass supplied by Owens-Corning Fiberglas Corp. The baghouse operates at 313 F and cleans 1,650,000 acfm at full plant load. Southwestern is confident that bag life will be more than two years and that particulate removal efficiency will be above 99%. Colorado-Ute has demonstrated the viability of filters on power plant exhaust at its Nucla station. Testing has shown that the filters are extremely efficient. Cascade impactor tests showed collection efficiency to be 99.98% at 6 MW load (full load is 13 MW), 99.97% at 11 MW, and 99.92% at 12 MW. Testing by EPA Method 5 put the efficiency at 99.4% at 12 M. Optical testing showed that opacity is less than 1%. It was also shown that filters are more economical than electrostatic precipitators. (MCW)

• OSTI ID: 5165007
• Journal Information: Electr. Light Power (Boston); (United States), Journal Name: Electr. Light Power (Boston); (United States) Vol. 56:1; ISSN ELLPA
• Country of Publication: United States
• Language: English

Related Subjects

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29 ENERGY PLANNING, POLICY, AND ECONOMY
296001* -- Energy Planning & Policy-- Electric Power Generation-- (-1989)
500400 -- Environment
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54 ENVIRONMENTAL SCIENCES
AEROSOLS
AIR FILTERS
AVAILABILITY
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
COLLOIDS
COMBUSTION
COMPARATIVE EVALUATIONS
DISPERSIONS
ECONOMICS
EFFICIENCY
ELECTRIC UTILITIES
ELECTROSTATIC PRECIPITATORS
ELEMENTS
ENERGY SOURCES
EXHAUST GASES
FILTERS
FILTRATION
FOSSIL FUELS
FOSSIL-FUEL POWER PLANTS
FUELS
GASEOUS WASTES
MANAGEMENT
NATIONAL ORGANIZATIONS
NONMETALS
OXIDATION
PARTICLES
PERFORMANCE
POLLUTION CONTROL EQUIPMENT
POWER PLANTS
PUBLIC UTILITIES
SEPARATION PROCESSES
SOLS
STACK DISPOSAL
STANDARDS
SULFUR
THERMAL POWER PLANTS
US EPA
US ORGANIZATIONS
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES