Abstracts and Available Papers Presented at the
1999 International RERTR Meeting
COMPARISON OF THE PARAMETERS OF THE IR-8 REACTOR WITH DIFFERENT FUEL ASSEMBLY DESIGNS WITH LEU FUEL
A. Vatulin, Y.
Stetsky, I. Dobrikova
State Scientific Center
All-Russian Scientific Research Institute of Inorganic Materials
(VNIINM), 123060 Moscow, Russia
аnd
N. Arkhangelsky
Ministry of Atomic
Energy of the Russian Federation
ABSTRACT
The estimation of neutron-physical, heat and hydraulic parameters of the IR-8 research reactor with low enriched uranium (LEU) fuel was performed. Two fuel assembly (FA) designs were reviewed: IRT-4M with the tubular type fuel elements and IRT-MR with the rod type fuel elements. UO2-Al dispersion 19,75% enrichment fuel is used in both cases. The results of the calculations were compared with main parameters of the reactor, using the current IRT-3M FA with 90% high enriched uranium (HEU) fuel. The results of these comparisons showed that during the LEU conversion of the reactor the cycle length, excess reactivity and peak power of the IRT-MR type FA are higher than for the IRT-3M type FA and IRT-4M type FA.
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Contact:
Alexander
Vatulin
Director of Department
Bochvar Institute, VNIINM
123060 Moscow, Russia
Phone: (095) 190-5119
Fax: (095) 196-4075
E-mail: avvat@orc.ru
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