Abstract
A series of three reactivity initiated accident (RIA) fuel rod code benchmarks were organized by the NEA/CSNI Working Group on Fuel Safety from 2010 to 2019. The purpose was to assess the modelling and predictive capabilities of the fuel rod codes to model the fuel behaviour in an RIA, as well as to compare codes’ results. Different cases were studied with experimental or theoretical tests with irradiated and fresh fuel rods. If globally the early phase of the transient was rather accurately calculated by most of the fuel rod codes, there is less satisfactory agreement for the boiling crisis phase evaluation. The impacts of the fuel rod initial state and key models on the results of the transient were investigated by uncertainty analyses, and sensitivity analyses were performed in order to identify the most influential input uncertainties.
| Original language | English |
|---|---|
| Title of host publication | Proceedings Top Fuel 2021 |
| Publisher | European Nuclear Society (ENS) |
| Number of pages | 11 |
| ISBN (Print) | 978-92-95064-35-5 |
| Publication status | Published - 2021 |
| MoE publication type | A4 Article in a conference publication |
| Event | TopFuel 2021 - Santander, Spain Duration: 24 Oct 2021 → 28 Oct 2021 |
Conference
| Conference | TopFuel 2021 |
|---|---|
| Country/Territory | Spain |
| City | Santander |
| Period | 24/10/21 → 28/10/21 |