2006 International RERTR Meeting
Abstracts and Available Papers Presented at the Meeting
Analyses of the IRT, Sofia Initial LEU Core Performance
T.G. Apostolov, S.I.
Belousov
Institute for Nuclear Research and Nuclear Energy of
Bulgarian Academy of Science
Sofia, Bulgaria
and
N.A. Hanan, J.E. Matos
RERTR Program
Argonne National Laboratory
Argonne, IL 60439-4815 USA
ABSTRACT
The initial LEU (IRT-4M fuel assemblies, 19.75% 235U) core of the new IRT-Sofia research reactor of the Institute for Nuclear Research and Nuclear Energy (INRNE) of the Bulgarian Academy of Science, Sofia, Bulgaria is jointly analyzed with the RERTR Program at Argonne National Laboratory (ANL) to evaluate its performance and other important characteristics for safety analyses. The initial configuration using 16 fuel assemblies (four 8-tube and twelve 6- tube fuel assemblies) detailed power distributions and beam tubes flux performance for two critical core states corresponding to different control rods positioning, and different performance characteristics are compared. Results of calculations for two configurations at the beginning of the second operation cycle using 17 fuel assemblies (sixteen burned fuel assemblies (FA) and one fresh 6-tube FA) are presented. The results provide important and useful information for safety analyses and performance of the future reactor operation.
Full paper in PDF format
- Analyses of
the IRT, Sofia Initial LEU Core Performance, T.G.
Apostolov et al.
[PDF, 257KB, 8 pages]
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Contact:
Dr. Jordi Roglans-Ribas
Technical Director, RERTR Department
Nuclear Engineering Division – 362
Argonne National Laboratory
9700 South Cass Avenue
Argonne, IL 60439
Fax: +1 630-252-5161