Thermal energy transport in oxide nuclear fuel
To efficiently capture the energy of the nuclear bond, advanced nuclear reactor concepts
seek solid fuels that must withstand unprecedented temperature and radiation extremes. In …
seek solid fuels that must withstand unprecedented temperature and radiation extremes. In …
Unit mechanisms of fission gas release: Current understanding and future needs
Gaseous fission product transport and release has a large impact on fuel performance,
degrading fuel and gap properties. While gaseous fission product behavior has been …
degrading fuel and gap properties. While gaseous fission product behavior has been …
Physics-based modelling of fission gas swelling and release in UO2 applied to integral fuel rod analysis
A physics-based model is developed for analysing the coupled phenomena of fission gas
swelling and release in UO2 fuel during irradiation. The model is featured by a level of …
swelling and release in UO2 fuel during irradiation. The model is featured by a level of …
Uncertainty and sensitivity analysis of fission gas behavior in engineering-scale fuel modeling
The role of uncertainties in fission gas behavior calculations as part of engineering-scale
nuclear fuel modeling is investigated using the BISON fuel performance code with a recently …
nuclear fuel modeling is investigated using the BISON fuel performance code with a recently …
Atomistic modeling of intrinsic and radiation-enhanced fission gas (Xe) diffusion in UO2±x: Implications for nuclear fuel performance modeling
Based on density functional theory (DFT) and empirical potential calculations, the diffusivity
of fission gas atoms (Xe) in UO 2 nuclear fuel has been calculated for a range of non …
of fission gas atoms (Xe) in UO 2 nuclear fuel has been calculated for a range of non …
Mechanistic materials modeling for nuclear fuel performance
Fuel performance codes are critical tools for the design, certification, and safety analysis of
nuclear reactors. However, their ability to predict fuel behavior under abnormal conditions is …
nuclear reactors. However, their ability to predict fuel behavior under abnormal conditions is …
A model describing intra-granular fission gas behaviour in oxide fuel for advanced engineering tools
The description of intra-granular fission gas behaviour is a fundamental part of any model for
the prediction of fission gas release and swelling in nuclear fuel. In this work we present a …
the prediction of fission gas release and swelling in nuclear fuel. In this work we present a …
An improved xenon equation of state for nanobubbles in UO2
To understand the thermodynamic behavior of xenon (Xe) bubbles in uranium dioxide (UO
2), the pressure of Xe nanobubbles as a function of temperature was systematically …
2), the pressure of Xe nanobubbles as a function of temperature was systematically …
Understanding xenon and vacancy behavior in UO 2, UN and U 3 Si 2: a comparative DFT+ U study
J Zhao, D Sun, L Xi, P Chen, J Zhao… - Physical Chemistry …, 2023 - pubs.rsc.org
Extensive attention has been paid to accident tolerant fuels (ATFs), such as uranium
mononitride (UN) and uranium sesquisilicide (U3Si2), which are regarded as potential …
mononitride (UN) and uranium sesquisilicide (U3Si2), which are regarded as potential …
Modeling intra-granular fission gas bubble evolution and coarsening in uranium dioxide during in-pile transients
The description of intra-granular fission gas behavior during irradiation is a fundamental part
of models used for the calculation of fission gas release and gaseous swelling in nuclear …
of models used for the calculation of fission gas release and gaseous swelling in nuclear …