Three-Dimensional Models of Hydrodynamics and Erosion in Fluidized-Bed Combustors

Conference · Sun Sep 01 00:00:00 EDT 1991

OSTI ID:6375351

Ding, Jianmin ^[1]; Lyczkowski, Robert W. ^[1]; Burge, Steve W. ^[2]; Gidaspow, Dimitri ^[3]

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1. Argonne National Laboratory (ANL), Argonne, IL (United States)
2. Babcock & Wilcox Co., Alliance, OH (United States)
3. Illinois Institute of Technology, Chicago, IL (United States)

Three-dimensional hydrodynamic models for gas-solids flow were developed and used to compute bubble and solids motion in rectangular fluidized beds. Our computed results demonstrate the significance and necessity for three-dimensional models of hydrodynamics and erosion in fluidized-bed combustors. A kinetic theory model for erosion using Finnie's single-particle ductile erosion model and kinetic theory was used to compute erosion in a rectangular fluidized bed containing a single tube. Comparison of two-dimensional and three-dimensional computed erosion rates and patterns clearly shows the superiority of three-dimensional modeling.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE; Electric Power Research Institute (EPRI); Tennessee Valley Authority (TVA); Illinois Center for Research on Sulfur in Coal (ILCRSC)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6375351
• Report Number(s): ANL/CP-72625; CONF-911133--7; ON: DE92003371
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
014000* -- Coal
Lignite
& Peat-- Combustion
42 ENGINEERING
420400 -- Engineering-- Heat Transfer & Fluid Flow
97 MATHEMATICS AND COMPUTING
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
BUBBLES
COMBUSTORS
COMPARATIVE EVALUATIONS
EROSION
EVALUATION
FLUID FLOW
FLUID MECHANICS
FLUIDIZED-BED COMBUSTORS
KINETICS
MATHEMATICAL MODELS
MECHANICS
MULTIPHASE FLOW
THREE-DIMENSIONAL CALCULATIONS
TWO-DIMENSIONAL CALCULATIONS