Simulation of reactivity initiated accident thermal transients on nuclear fuels with laser remote heating
Source abstract
Abstract
Abstract The investigation on the behaviour of nuclear fuels under thermal loads representative of RIA (Reactivity Initiated Accident) conditions in nuclear reactors is a significant challenge. In this work we introduce a new concept of a laboratory experiment relying on high power lasers to reproduce the temperature gradients experienced by nuclear fuel pellets during such events. The concept is experimentally demonstrated on UO2 samples, supported with numerical simulations to estimate the temperature gradients within the samples. This is a first step in the perspective of applying the technique on irradiated fuels.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Nuclear Materials and Properties · Nuclear reactor physics and engineering · Nuclear Engineering Thermal-Hydraulics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (17)
Show source-provided references
1. High burnup effects on fuel behavior under accident conditions: the tests cabri rep-na10.1016/S0022-3115(98)00895-2 ↗
2. Simulation of reactivity-initiated accident transients on uo2-m5 fuelrods with alcyone v1.4 fuel performance code10.1016/j.net.2017.12.006 ↗
3. Assessment of light water reactor fuel damage during a reactivity initiated accident
4. Yegorova · 1999
5. Yegorova · 2006
6. Amaya · 2016 · 53
7. The cabri reactor: equipped for nea cabri international project tests
8. A study of fuel behavior under reactivity initiated accident conditions - review10.1016/0022-3115(80)90076-8 ↗
9. Summary and interpretation of the cabri rep-na program10.13182/NT07-A3815 ↗
10. Thermal conductivity of uranium dioxide up to 2900 k from simultaneous measurement of the heat capacity and thermal diffusivity10.1063/1.369159 ↗
11. On the thermal conductivity of uo2 nuclear fuel at a high burn-up of around 100 mwd/kghm10.1016/j.jnucmat.2005.11.007 ↗
12. Bestimmung der optischen konstanten von geschmolzenen kernbrennstoffen10.1016/0022-3115(84)90016-3 ↗
13. Thermal variation of the optical absorption of uo2: determination of the small polaron self-energy10.1016/j.jnucmat.2004.03.002 ↗
14. Thermal diffusivity of uo2up to the melting point10.1016/j.jnucmat.2017.11.050 ↗
15. Linear, annular, and radial focusing with axicons and applications to laser machining10.1364/AO.17.001532 ↗
16. Mathes · 2002
17. Thermophysical properties of uranium dioxide10.1016/S0022-3115(99)00273-1 ↗