The role of the wet electrostatic precipitator in the coal-fired magnetohydrodynamics system

Conference · Wed Jan 01 04:00:00 EST 1992

OSTI ID:5205125

Sheth, A C; Holt, J K; Douglas, J R; Thompson, B R

According to the New Source Performance Standards (NSPS), particulate emissions from advanced energy conversion technologies must be less than 13 ng/J of energy input. Theoretical calculations as well as measurements made at the University of Tennessee Space Institute (UTSI) in the U.S. Department of Energy's Coal-Fired Flow Facility (CFFF) have indicated that a considerable fraction of the entrained particles in the coal-fired MHD system will be in sizes below 1 {mu}m. Thus, capturing very fine particles at an overall efficiency exceeding 99% presents a significant challenge for MHD. At the CFFF, A baghouse (BH) and a dry (ESP) are presently operated in parallel to capture such fine particulates. By the summer of 1992, a wet ESP (WESP) will be installed to replace the existing venturi scrubber/cyclone. In this paper, we have discussed the major differences between the dry and wet ESP; the principle of operation; advantages and disadvantages; and the preliminary bench scale results to identify the WESP's potential in separating soluble potassium salts. (VC)

• Research Organization: Tennessee Univ., Tullahoma, TN (United States). Space Inst.
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC02-79ET10815
• OSTI ID: 5205125
• Report Number(s): DOE/ET/10815-185; CONF-920677--10; ON: DE92014196
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
300103* -- MHD Generators-- Materials
Components
& Auxiliaries
AEROSOL WASTES
AIR POLLUTION CONTROL
ALKALI METAL COMPOUNDS
ASHES
BAGHOUSES
CARBON COMPOUNDS
CARBONATES
COMBUSTION PRODUCTS
CONTROL
DIRECT ENERGY CONVERTERS
ELECTROSTATIC PRECIPITATORS
EQUIPMENT
FLY ASH
HYDROGEN COMPOUNDS
MATHEMATICAL MODELS
MHD GENERATORS
OXYGEN COMPOUNDS
PARTICLE SIZE
PARTICLES
PARTICULATES
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
POTASSIUM CARBONATES
POTASSIUM COMPOUNDS
POTASSIUM SULFATES
RESIDUES
SIZE
SOLUBILITY
SULFATES
SULFUR COMPOUNDS
WASTES
WATER