Modeling of combustion processes in a solid fuel particle
During the production of granules of uranium oxide, granules of ion exchange resin, loaded with uranium ions, are burned to remove the resin matrix and leave a uranium oxide ash''. Under some conditions of combustion, the oxide granules are produced in a highly fractured, porous state, while other conditions result in hard, dense, solid granules. ABAQUS, a commercial finite-element code, run on an IBM 3090, was used to model the physical processes occurring during combustion: heat transfer with a very nonlinear temperature-dependent rate of heat generation, diffusion of reactants and products, and stress/strain resulting from the differential temperatures and from the phase changes during the combustion. The ABAQUS simulation successfully explained the differences in morphology of the granules under different conditions, and lead to control strategies to produce the desired morphology. 10 figs.
- Research Organization:
- Westinghouse Savannah River Co., Aiken, SC (USA)
- Sponsoring Organization:
- DOE/DP
- DOE Contract Number:
- AC09-89SR18035
- OSTI ID:
- 7040919
- Report Number(s):
- WSRC-RP-89-812; CONF-9003132-1; ON: DE90009140
- Resource Relation:
- Conference: IBM 3090 supercomputing competition meeting, White Plains, NY (USA), 1 Mar 1990
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
CALCINATION
A CODES
COMPUTERIZED SIMULATION
RESINS
URANIUM
CHEMICAL REACTION KINETICS
DIFFUSION
HEAT TRANSFER
OXIDATION
PYROLYSIS
URANIUM OXIDES
ACTINIDE COMPOUNDS
ACTINIDES
CHALCOGENIDES
CHEMICAL REACTIONS
COMPUTER CODES
DECOMPOSITION
ELEMENTS
ENERGY TRANSFER
KINETICS
METALS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OXIDES
OXYGEN COMPOUNDS
PETROCHEMICALS
PETROLEUM PRODUCTS
POLYMERS
REACTION KINETICS
SIMULATION
THERMOCHEMICAL PROCESSES
URANIUM COMPOUNDS
050800* - Nuclear Fuels- Spent Fuels Reprocessing
052001 - Nuclear Fuels- Waste Processing