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Science and Technology of Nuclear Installations
Volume 2011, Article ID 194650, 15 pages
Research Article

A New Fuel Design for Two Different HW Type Reactors

1Comisión Nacional de Energía Atómica (CNEA), Centro Atómico Bariloche (CAB), Bariloche, Río Negro, Argentina
2Instituto Balseiro, Universidad Nacional de Cuyo, Bariloche, Río Negro, Argentina
3Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Buenos Aires, Argentina

Received 26 August 2010; Accepted 6 December 2010

Academic Editor: Juan Pablo Ordóñez

Copyright © 2011 Daniel O. Brasnarof et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


A new fuel element (called CARA) designed for two different heavy water reactors (HWRs) is presented. CARA could match fuel requirements of both (one CANDU and one unique Siemens's design) Argentine HW reactors. It keeps the heavier fuel mass density and hydraulic flow restriction in both reactors together with improving both thermomechanic and thermalhydraulic, safety margins of present fuels. In addition, the CARA design could be considered as another design line for the next generation of CANDU fuels intended for higher burnup.