skip to main content

Title: 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.
Authors:
; ;
Publication Date:
OSTI Identifier:
5561567
Report Number(s):
ORNL/CSD/TM-244
ON: DE88003658; TRN: 88-008422
DOE Contract Number:
AC05-84OR21400
Resource Type:
Technical Report
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products. Original copy available until stock is exhausted
Research Org:
Oak Ridge National Lab., TN (USA)
Country of Publication:
United States
Language:
English
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; 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, Light-Water Moderated, Nonboiling Water Cooled; 050900 -- Nuclear Fuels-- Transport, Handling, & Storage; 050800 -- Nuclear Fuels-- Spent Fuels Reprocessing