Comparison of the SASSYS/SAS4A radial core expansion reactivity feedback model and the empirical correlation for FFTF
Conference
·
OSTI ID:5745105
The present emphasis on inherent safety for LMR designs has resulted in a need to represent the various reactivity feedback mechanisms as accurately as possible. The dominant negative reactivity feedback has been found to result from radial expansion of the core for most postulated ATWS events. For this reason, a more detailed model for calculating the reactivity feedback from radial core expansion has been recently developed for use with the SASSYS/SAS4A Code System. The purpose of this summary is to present an extension to the model so that it is more suitable for handling a core restraint design as used in FFTF, and to compare the SASSYS/SAS4A results using this model to the empirical correlation presently being used to account for radial core expansion reactivity feedback to FFTF.
- Research Organization:
- Argonne National Lab., IL (USA)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 5745105
- Report Number(s):
- CONF-871101-75; ON: DE88003036
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210500 -- Power Reactors
Breeding
22 GENERAL STUDIES OF NUCLEAR REACTORS
220900* -- Nuclear Reactor Technology-- Reactor Safety
ACCIDENTS
ATWS
BREEDER REACTORS
COMPUTER CODES
CORRELATIONS
DATA
DESIGN
EPITHERMAL REACTORS
EXPANSION
EXPERIMENTAL DATA
FAST REACTORS
FBR TYPE REACTORS
FFTF REACTOR
INFORMATION
LIQUID METAL COOLED REACTORS
LMFBR TYPE REACTORS
NUMERICAL DATA
REACTIVITY
REACTOR ACCIDENTS
REACTOR CORE RESTRAINTS
REACTOR PROTECTION SYSTEMS
REACTOR SAFETY
REACTORS
RESEARCH AND TEST REACTORS
RESEARCH REACTORS
RESTRAINTS
S CODES
SAFETY
SODIUM COOLED REACTORS
TEMPERATURE EFFECTS
TEST REACTORS
THERMAL EXPANSION
210500 -- Power Reactors
Breeding
22 GENERAL STUDIES OF NUCLEAR REACTORS
220900* -- Nuclear Reactor Technology-- Reactor Safety
ACCIDENTS
ATWS
BREEDER REACTORS
COMPUTER CODES
CORRELATIONS
DATA
DESIGN
EPITHERMAL REACTORS
EXPANSION
EXPERIMENTAL DATA
FAST REACTORS
FBR TYPE REACTORS
FFTF REACTOR
INFORMATION
LIQUID METAL COOLED REACTORS
LMFBR TYPE REACTORS
NUMERICAL DATA
REACTIVITY
REACTOR ACCIDENTS
REACTOR CORE RESTRAINTS
REACTOR PROTECTION SYSTEMS
REACTOR SAFETY
REACTORS
RESEARCH AND TEST REACTORS
RESEARCH REACTORS
RESTRAINTS
S CODES
SAFETY
SODIUM COOLED REACTORS
TEMPERATURE EFFECTS
TEST REACTORS
THERMAL EXPANSION