Relationship between fluid bed aerosol generator operation and the aerosol produced

Journal Article · Mon Dec 01 00:00:00 EST 1980 · Am. Ind. Hyg. Assoc. J.; (United States)

DOI:https://doi.org/10.1080/15298668091425824· OSTI ID:7033854

Carpenter, R L; Yerkes, K

The relationships between bed operation in a fluid bed aerosol generator and aerosol output were studied. A two-inch diameter fluid bed aerosol generator (FBG) was constructed using stainless steel powder as a fluidizing medium. Fly ash from coal combustion was aerosolized and the influence of FBG operating parameters on aerosol mass median aerodynamic diameter (MMAD), geometric standard deviation (sigma/sub g/) and concentration was examined. In an effort to extend observations on large fluid beds to small beds using fine bed particles, minimum fluidizing velocities and elutriation constant were computed. Although FBG minimum fluidizing velocity agreed well with calculations, FBG elutriation constant did not. The results of this study show that the properties of aerosols produced by a FBG depend on fluid bed height and air flow through the bed after the minimum fluidizing velocity is exceeded.

• Research Organization: Lovelace Biomedical and Environmental Research Inst., Albuquerque, NM
• DOE Contract Number: AC04-76EV01013
• OSTI ID: 7033854
• Journal Information: Am. Ind. Hyg. Assoc. J.; (United States), Vol. 41:12
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
AEROSOLS
PRODUCTION
FLY ASH
ELUTRIATION
AERODYNAMICS
EXPERIMENTAL DATA
FLUIDIZED BED
FLUIDIZED BED REACTORS
PARTICLE SIZE
POWDERS
PRESSURE DEPENDENCE
STAINLESS STEELS
TIME DEPENDENCE
VELOCITY
AEROSOL WASTES
ALLOYS
CHROMIUM ALLOYS
COLLOIDS
CORROSION RESISTANT ALLOYS
DATA
DISPERSIONS
FLUID MECHANICS
FUEL DISPERSION REACTORS
HOMOGENEOUS REACTORS
INFORMATION
IRON ALLOYS
IRON BASE ALLOYS
MECHANICS
NUMERICAL DATA
REACTORS
SEPARATION PROCESSES
SIZE
SOLS
STEELS
WASTES
500100* - Environment
Atmospheric- Basic Studies- (-1989)