Validation of Serpent-SUBCHANFLOW-TRANSURANUS pin-by-pin burnup calculations using experimental data from the Temelın II VVER-1000 reactor

This work deals with the validation of a high-fidelity multiphysics system coupling the Serpent 2 Monte Carlo neutron transport code with SUBCHANFLOW, a subchannel thermalhydraulics code, and TRANSURANUS, a fuel-performance analysis code. The results for a full-core pin-by-pin burnup calculation for the ninth operating cycle of the Temelın II VVER-1000 plant are presented and assessed using experimental data. A good agreement is found comparing the critical boron concentration and a set of pin-level neutron flux profiles against measurements, and the calculated axial and radial power distributions match closely the values reported by the core monitoring system. To demonstrate the modelling capabilities of the three-code coupling, pin-level neutronic, thermalhydraulic and thermomechanic results are shown as well. These studies are encompassed in the final phase of the EU Horizon 2020 McSAFE project, during which the Serpent-SUBCHANFLOW-TRANSURANUS system was developed.

GARCIA Manuel;  VOCKA Radim;  TUOMINEN Riku;  GOMMLICH André;  LEPPANEN J.;  VALTAVIRTA Ville;  IMKE Uwe;  FERRARO Diego;  VAN UFFELEN Paul;  MILISDÖRFER Lukás;  SANCHEZ ESPINOZA Victor Hugo; 

2021-08-10

KOREAN NUCLEAR SOC

JRC123371

1738-5733 (online),   

https://www.sciencedirect.com/science/article/pii/S1738573321002424,    https://publications.jrc.ec.europa.eu/repository/handle/JRC123371,   

10.1016/j.net.2021.04.023 (online),