Hydrodynamics of erosion of heat exchanger tubes in fluidized bed combustors

Conference · Wed Dec 31 23:00:00 EST 1986

OSTI ID:6545706

Bouillard, J X; Lyczkowski, R W; Folga, S; Gidaspow, D; Berry, G F

The hydrodynamics of fluidization for two thin ''two-dimensional'' fluidized beds, one containing a centrally located rectangular obstacle and the other containing three square tubes roughly approximating a portion of a fluidized bed combustor (FBC), was solved using the FLUFIX/MOD2 computer program. The monolayer energy dissipation erosion model extended to include solids viscous stress was compared with the Finnie erosion model. Hydrodynamic and erosion convergence studies were performed for the first bed. Computed erosion rates from the energy dissipation erosion model compare more favorably for both beds with available erosion data than those from the Finnie erosion model.

• OSTI ID: 6545706
• Report Number(s): CONF-871113-
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
421000* -- Engineering-- Combustion Systems
99 GENERAL AND MISCELLANEOUS
990220 -- Computers
Computerized Models
& Computer Programs-- (1987-1989)
COMBUSTORS
COMPUTER CODES
COMPUTERIZED SIMULATION
EROSION
F CODES
FLUID MECHANICS
FLUIDIZATION
FLUIDIZED-BED COMBUSTORS
HEAT EXCHANGERS
HYDRODYNAMICS
MECHANICS
SIMULATION
TUBES