Open Access
ND 2007
Article Number 238
Number of page(s) 4
Section Fission applications
Published online 17 June 2008
International Conference on Nuclear Data for Science and Technology 2007
DOI: 10.1051/ndata:07486

Nuclear data sensitivity studies towards understanding of fuel temperature coefficient in AHWR

Anek Kumar1, 2, Umasankari Kannan1, S. Ganesan1 and R. Srivenkatesan1

1  Bhabha Atomic Research Centre, Mumbai-400 085, India
2  RPDD, BARC, Mumbai, India

Published online: 21 May 2008

The Advanced Heavy Water Reactor (AHWR) is a 920 MWth, vertical pressure tube type thorium-based reactor cooled by natural convection by boiling light water and moderated by heavy water. In this paper, we present the isotopic and energy group wise contributions to the Fuel Temperature Coefficient (FTC) in AHWR using our first order perturbation analysis code. In AHWR, the contribution of 239Pu to FTC decreases with burn-up and the contribution of 233U in FTC becomes more negative with burn-up. Also 232Th gives a significant negative contribution, which makes the FTC become more negative with burn-up in AHWR.

© CEA 2008