TY - JOUR

T1 - Decay Heat Characterization for the European Sodium Fast Reactor

AU - Jimenez-Carrascosa, Antonio

AU - Garcia-Herranz, Nuria

AU - Krepel, Jiri

AU - Margulis, Marat

AU - Baker, Una

AU - Shwageraus, Eugene

AU - Fridman, Emil

AU - Gregg, Robert

PY - 2022/4/1

Y1 - 2022/4/1

N2 - In this work, a detailed assessment of the decay heat power for the commercial-size European sodium-cooled fast reactor (ESFR) at the end of its equilibrium cycle has been performed. The summation method has been used to compute very accurate spatial- and time-dependent decay heat by employing state-of-the-art coupled transport-depletion computational codes and nuclear data. This detailed map provides basic information for subsequent transient calculations of the ESFR. A comprehensive analysis of the decay heat has been carried out and interdependencies between decay heat and different parameters characterizing the core state prior to shutdowns, such as discharge burnup or type of fuel material, have been identified. That analysis has served as a basis to develop analytic functions to reconstruct the spatial-dependent decay heat power for the ESFR for cooling times within the first day after shutdown.

AB - In this work, a detailed assessment of the decay heat power for the commercial-size European sodium-cooled fast reactor (ESFR) at the end of its equilibrium cycle has been performed. The summation method has been used to compute very accurate spatial- and time-dependent decay heat by employing state-of-the-art coupled transport-depletion computational codes and nuclear data. This detailed map provides basic information for subsequent transient calculations of the ESFR. A comprehensive analysis of the decay heat has been carried out and interdependencies between decay heat and different parameters characterizing the core state prior to shutdowns, such as discharge burnup or type of fuel material, have been identified. That analysis has served as a basis to develop analytic functions to reconstruct the spatial-dependent decay heat power for the ESFR for cooling times within the first day after shutdown.

U2 - 10.1115/1.4051798

DO - 10.1115/1.4051798

M3 - Article

VL - 8

JO - Journal of Nuclear Engineering and Radiation Science

JF - Journal of Nuclear Engineering and Radiation Science

SN - 2332-8983

IS - 1

M1 - 011319

ER -