HEU-LEU mixed core analysis for TR-2
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Date
2003
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
National Nuclear Center of the Republic of Kazakhstan / Institute of Nuclear Physics
Abstract
Core conversion calculations have been carried out for different core loadings of the TR-2 reactor in order to find out the optimum design for the radioisotope production. Using HEU and LEU fuel elements in the mixed core also introduced additional peaking problems to be eliminated. Five group structure is used for the burnup dependent cross-section libraries that are generated by EPRICELL code. 2D diffusion-depletion code GEREBUS is used for the reactivity and burnup calculations.
New graphite and Be reflectors have been added to the periphery of the core to enhance the reactivity and the discharge burnup levels. Two water boxes have been placed inside the reactor core in order to increase the radioisotope production. The activity levels of the irradiation samples, core excess reactivities, power peaking factors, and the anti-reactivities of the control blades have been calculated for various loadings. After the optimization studies, it is found that these modifications have yielded higher production rates and a uniform distribution in the activity levels of the irradiation samples.
One irradiation and two standard LEU fuel elements have already been loaded to the TR-2 core without any operational or safety related problems. The agreement between the calculations and the experiments are quite good for the operated 13 cycles.
Description
TENMAK D.N.3326
Keywords
HEU-LEU mixed core analysis, HEU-LEU karma çekirdek analizi, TR-2 reactor, TR-2 reaktörü
Citation
Turgut, M. H. (2003). HEU-LEU mixed core analysis for TR-2. The Second Eurasian Conference on Nuclear Science and Its Application : Presentations, 1.c., (s.97-104). 16-19 September 2002. Almaty : Kazakhstan.