Comparative Analysis of Isotopic Composition of VVER-1000 Westinghouse and TVEL Spent Fuel
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Keywords

nuclear safety, neutron multiplication factor, fuel enrichment, isotopic composition, operational conditions

How to Cite

Kovbasenko, Y. (2016). Comparative Analysis of Isotopic Composition of VVER-1000 Westinghouse and TVEL Spent Fuel. Nuclear and Radiation Safety, (3(71), 33-37. https://doi.org/10.32918/nrs.2016.3(71).07

Abstract

The paper considers the impact of different operational conditions on VVER-1000 spent fuel isotopic composition. Such operational conditions include the presence or absence of absorber rods in guide tubes of fuel assemblies, changing the concentration of boric acid dissolved in the moderator (water) during the campaign, fuel and/or moderator temperature. Moreover, the impact caused by manufacturing tolerance applied while manufacturing fuel assembly was analyzed by weight of fuel and by its enrichment. Calculations were made for reactor cells of fuel assemblies for VVER-1000. They were composed of the new fuel assemblies of Westinghouse Company and the typical fuel assemblies of Russian TVEL suppliers.

https://doi.org/10.32918/nrs.2016.3(71).07
ARTICLE PDF

References

1. Kovbasenko, Yu.P. (2005), “Comparative Analysis of Spent Fuel Isotope Composition of VVER440 and VVER-1000 Reactors” [Sravnitelnyi analiz izotopnogo sostava otrabotannogo topliva reaktorov VVER-440 i VVER-1000], Nuclear and Radiation Safety Journal, No. 2, pp. 51–57, Kyiv. (Rus)

2. SCALE User’s Manual. NUREG/CR-0200 Revision 6. RNL/NUREG/CSD-2/V2/R6.

3. Kovbasenko, Y., Khalimonchuk, V., Kuchin, A., Bilodid, Ye., Yeremenko, M., Dudka, O. (2002), NUREG/CR-6736, PNNL-13694 “Validation of SCALE Sequence CSAS26 for Criticality Safety Analysis of VVER and RBMK Fuel Designs”, Washington, U.S. NRC.