Abstract
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 Temelín II VVER-1000 plant, which starts from a fresh core, 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. In addition, the calculated axial and radial power distributions match closely the values reported by the core monitoring system. To demonstrate the modeling 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.
Original language | English |
---|---|
Pages (from-to) | 3133-3150 |
Journal | Nuclear Engineering and Technology |
Volume | 53 |
Issue number | 10 |
Early online date | 8 May 2021 |
DOIs | |
Publication status | Published - Oct 2021 |
MoE publication type | A1 Journal article-refereed |
Funding
This work was done within the McSAFE project which is receiving funding from the Euratom research and training programme 2014–2018 under grant agreement No 755097. This work was performed on the computational resource ForHLR II funded by the Ministry of Science, Research and the Arts Baden-Württemberg and DFG (“Deutsche Forschungsgemeinschaft”) .
Keywords
- Fuel-performance analysis
- High-fidelity multiphysics
- Monte Carlo neutron transport
- Pin-level burnup
- Subchannel thermalhydraulics
- VVER-1000