Particulate sampling methods used at the University of Tennessee Space Institute's coal fired magnetohydrodynamic (MHD) facility

Conference · Fri Jan 01 00:00:00 EST 1988

OSTI ID:7039300

Douglas, J R ^[1]

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1. The Univ. of Tennessee Space Institute, Tullahoma, TN (US)

The University of Tennessee Space Institute (UTSI), operates a coal-fired magnetohydrodynamic (MHD) research facility with downstream components capable of simulating a steam bottoming plant with particulate control devices. The major downstream components of the coal fired flow facility (CFFF) include a superheater test module (SHTM); an air heater; and three parallel particulate control devices, a baghouse, electrostatic precipitator (ESP), and venturi scrubber/cyclone system. Major differences between MHD and conventional coal fired power plants are higher combustion temperatures of 2760{degrees}C (5000 {degrees} F) and the presence of 1% potassium in the total flow. These high temperatures and the addition of potassium carbonate seed are used to enhance the conductivity of the plasma in the MHD generator. High combustion temperatures cause all of the potassium carbonate and some of the coal ash to vaporize. Upon cooling, they form fly ash and submicron potassium sulfate particles. Mass loading tests were performed to evaluate baghouse, ESP, and venturi/cyclone performance and samples were taken with cascade impactors to determine the particle size distribution.

• OSTI ID: 7039300
• Report Number(s): CONF-880679-
• Resource Relation: Conference: 81. annual meeting of Air Pollution Control Association, Dallas, TX (USA), 19-24 Jun 1988; Other Information: 88-72.4; Related Information: Volume 4
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
30 DIRECT ENERGY CONVERSION
54 ENVIRONMENTAL SCIENCES
COAL
COMBUSTION KINETICS
FOSSIL-FUEL POWER PLANTS
AIR POLLUTION CONTROL
TENNESSEE
ASHES
CASCADE IMPACTORS
CYCLONE SEPARATORS
ELECTROSTATIC PRECIPITATORS
ENVIRONMENTAL IMPACTS
MHD GENERATORS
PARTICLES
SAMPLING
VENTURI TUBES
CARBONACEOUS MATERIALS
CHEMICAL REACTION KINETICS
CONCENTRATORS
CONTROL
DIRECT ENERGY CONVERTERS
ENERGY SOURCES
EQUIPMENT
FEDERAL REGION IV
FOSSIL FUELS
FUELS
INERTIAL SEPARATORS
KINETICS
MATERIALS
NORTH AMERICA
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
POWER PLANTS
REACTION KINETICS
RESIDUES
SEPARATION EQUIPMENT
THERMAL POWER PLANTS
USA
200202* - Fossil-Fueled Power Plants- Waste Management- Noxious Gas & Particulate Emissions
200500 - Fossil-Fueled Power Plants- Environmental Aspects- (1990-)
300100 - Direct Energy Conversion- MHD Generators
540120 - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)