| About this Abstract |
| Meeting |
Materials in Nuclear Energy Systems (MiNES) 2021
|
| Symposium
|
Materials in Nuclear Energy Systems (MiNES) 2021
|
| Presentation Title |
A Review of Current Understanding of Fluff Formation in Metallic Fuel via EBR-II Data and Modelling and Simulations. |
| Author(s) |
Jake Fay, Fidelma Di Lemma, Luca Capriotti, Pavel Medvedev, Jie Lian, Andrei Gribok, Douglas Porter |
| On-Site Speaker (Planned) |
Jake Fay |
| Abstract Scope |
As metallic fuel rods undergo axial swelling in a reactor setting the tops of the fuel rods begin to form a porous structure currently labeled “fluff”, which impacts source term release and core reactivity. The mechanisms and environmental factors that control fluff formation are currently unknown and need to understood and modeled for the advancement of reactor designs that utilize metallic fuels. This project is a first step in this process and primarily involves examining past experimental data from the experimental breeder reactor II experiment (EBR II) in order to build correlations between fluff formation and key factors such as operating temperature, fuel composition, and burnup. The end goal of this project will be to create accurate fluff models and to incorporate them into the BISON fuel code in order to improve simulation of metallic fuels. |
| Proceedings Inclusion? |
Undecided |