Measurements and computation of the reactivity effects of accident-caused core distortions in liquid-metal fast breeder reactors
Journal Article
·
· Nucl. Sci. Eng.; (United States)
OSTI ID:6314826
The reactivity effects of material rearrangements, simulating conditions in a postulated liquid-metal fast breeder reactor accident, were measured in SNEAK-12A, a single-zone uranium fueled critical assembly, and calculated using current Kernforschungszentrum Karlsruhe methods and data and, in part, also using the corresponding modules of the SIMMER-II accident analysis system. For all cases investigated, satisfactory agreement between theory and experiment was reached when two-dimensional transport eigenvalue calculations were used. The application of first-order perturbation theory or diffusion theory in a number of cases led to larger discrepancies, particularly when the experiments involved fuel compaction.
- Research Organization:
- Inst. for Neutron Physics and Reactor Tech., Karlsruhe
- OSTI ID:
- 6314826
- Journal Information:
- Nucl. Sci. Eng.; (United States), Journal Name: Nucl. Sci. Eng.; (United States) Vol. 87:3; ISSN NSENA
- Country of Publication:
- United States
- Language:
- English
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21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
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ACCIDENTS
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MEASURING METHODS
PERTURBATION THEORY
REACTOR ACCIDENTS
REACTOR CORE DISRUPTION
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RESEARCH AND TEST REACTORS
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TWO-DIMENSIONAL CALCULATIONS
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210500 -- Power Reactors
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22 GENERAL STUDIES OF NUCLEAR REACTORS
220600 -- Nuclear Reactor Technology-- Research
Test & Experimental Reactors
220900* -- Nuclear Reactor Technology-- Reactor Safety
ACCIDENTS
AIR COOLED REACTORS
BREEDER REACTORS
COMPACTING
COMPUTER CODES
COMPUTERIZED SIMULATION
DIFFUSION
EIGENVALUES
EPITHERMAL REACTORS
EXPERIMENTAL REACTORS
FAST REACTORS
FBR TYPE REACTORS
GAS COOLED REACTORS
LIQUID METAL COOLED REACTORS
LMFBR TYPE REACTORS
MEASURING METHODS
PERTURBATION THEORY
REACTOR ACCIDENTS
REACTOR CORE DISRUPTION
REACTORS
RESEARCH AND TEST REACTORS
RESEARCH REACTORS
S CODES
SIMULATION
SNEAK REACTOR
TWO-DIMENSIONAL CALCULATIONS
ZERO POWER REACTORS