Reactivity and isotopic composition of spent PWR (pressurized-water-reactor) fuel as a function of initial enrichment, burnup, and cooling time
This study presents the reactivity loss of spent PWR fuel due to burnup in terms of the infinite lattice multiplications factor, k/sub infinity/. Calculations were performed using the SAS2 and CSAS1 control modules of the SCALE system. The k/sub infinity/ values calculated for all combinations of six enrichments, seven burnups, and five cooling times. The results are presented as a primary function of enrichment in both tabular and graphic form. An equation has been developed to estimate the tabulated values of k/sub infinity/'s by specifying enrichment, cooling time, and burnup. Atom densities for fresh fuel, and spent fuel at cooling times of 2, 10, and 20 years are included. 13 refs., 8 figs., 8 tabs.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 5561567
- Report Number(s):
- ORNL/CSD/TM-244; ON: DE88003658; TRN: 88-008422
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products. Original copy available until stock is exhausted
- Country of Publication:
- United States
- Language:
- English
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11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
PWR TYPE REACTORS
SPENT FUEL ELEMENTS
BURNUP
COOLING TIME
REACTIVITY
B CODES
C CODES
ENRICHMENT
MATHEMATICAL MODELS
S CODES
SPENT FUEL STORAGE
URANIUM 235
URANIUM 236
URANIUM 238
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
COMPUTER CODES
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FUEL ELEMENTS
HEAVY NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MINUTES LIVING RADIOISOTOPES
NUCLEI
RADIOISOTOPES
REACTOR COMPONENTS
REACTORS
STORAGE
URANIUM ISOTOPES
WATER COOLED REACTORS
WATER MODERATED REACTORS
YEARS LIVING RADIOISOTOPES
210200* - Power Reactors
Nonbreeding
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Nonboiling Water Cooled
050900 - Nuclear Fuels- Transport
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050800 - Nuclear Fuels- Spent Fuels Reprocessing