Centrifugal fluidization: a review. [15 refs]

Conference · Tue Mar 01 04:00:00 EST 1977

OSTI ID:7105936

Levy, E K; Chen, J C

The term centrifugal fluidization refers to a fluidized bed of particles contained in a cylindrical device and made to rotate about the axis of symmetry. The rotational motion generates radial forces on the bed material, which act like gravity and cause the particles to be concentrated in the annular region at the circumference of the device. Fluidizing gas flows inward through the porous cylindrical distributor, fluidizing the bed against the radial centrifugal forces. Relatively large effective gravities can be generated with modest angular velocities, permitting much larger gas flow rates per unit volume at minimum fluidization than are possible with a conventional fluidized bed operating at 1 G. A review is presented of the research performed at Lehigh University and elsewhere on centrifugal fluidized beds. Expressions for minimum fluidization, pressure drop, and elutriation are presented with data on bed behavior. The possible application of this technology to coal combustion is discussed.

• Research Organization: Lehigh Univ., Bethlehem, PA (USA)
• OSTI ID: 7105936
• Report Number(s): CONF-770520-1
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
014000* -- Coal
Lignite
& Peat-- Combustion
640410 -- Fluid Physics-- General Fluid Dynamics
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CARBONACEOUS MATERIALS
CENTRIFUGATION
CHEMICAL REACTIONS
COAL
COMBUSTION
DOCUMENT TYPES
ENERGY SOURCES
FLUID FLOW
FLUIDIZATION
FLUIDIZED BED
FLUIDIZED-BED COMBUSTION
FOSSIL FUELS
FUELS
GAS FLOW
OXIDATION
RESEARCH PROGRAMS
REVIEWS
SEPARATION PROCESSES
THERMOCHEMICAL PROCESSES