A5001708429- Nuclear Materials and Properties
- Nuclear reactor physics and engineering
- Nuclear and radioactivity studies
- Radioactive element chemistry and processing
- Nuclear Engineering Thermal-Hydraulics
- Fusion materials and technologies
- Heat transfer and supercritical fluids
- Graphite, nuclear technology, radiation studies
- Nuclear materials and radiation effects
- Nuclear Physics and Applications
- Thermodynamic and Structural Properties of Metals and Alloys
- Cyclone Separators and Fluid Dynamics
- Probabilistic and Robust Engineering Design
- Advanced Power Generation Technologies
- Particle accelerators and beam dynamics
- Combustion and Detonation Processes
- Radiation Detection and Scintillator Technologies
- Historical and Architectural Studies
- Historical Astronomy and Related Studies
- Adversarial Robustness in Machine Learning
- Spacecraft and Cryogenic Technologies
- Microstructure and mechanical properties
- Chemical Looping and Thermochemical Processes
- Advancements in Photolithography Techniques
- Engineering Applied Research
University of Tennessee at Knoxville
2019-2023
Idaho National Laboratory
2013-2021
Knoxville College
2021
Massachusetts Institute of Technology
2018-2020
Politecnico di Milano
2011-2013
BISON is a nuclear fuel performance application built using the Multiphysics Object-Oriented Simulation Environment (MOOSE) finite element library. One of its major goals to have great amount flexibility in how it used, including types can analyze, geometry being modeled, modeling approach employed, and dimensionality size models. Fuel forms that be modeled include standard light water reactor fuel, emerging fuels, tri-structural isotropic particles, metallic fuels. platform for research...
The description of intra-granular fission gas behaviour is a fundamental part any model for the prediction release and swelling in nuclear fuel. In this work we present describing evolution bubbles terms bubble number density average size, coupled to grain boundaries. considers processes single atom diffusion, nucleation, re-solution trapping at bubbles. derived from detailed cluster dynamics formulation, yet it consists only three differential equations its final form; hence, can be...
We propose a model describing the HBS formation and progressive intra-granular xenon depletion in UO2. The is modeled employing Kolmogorov-Johnson-Mehl-Avrami (KJMA) formalism for phase transformations, which has been fitted to experimental data on restructured volumetric fraction as function of local effective burnup. To this end, we employed available novel extracted work. coupled description fission gas behavior, allowing estimate evolution retained order consistently compute retention...
The description of intra-granular fission gas behavior during irradiation is a fundamental part models used for the calculation release and gaseous swelling in nuclear fuel performance codes. relevant phenomena include diffusion atoms towards grain boundaries coupled to evolution bubbles. While bubbles normal operating conditions are limited sizes few nanometers, experimental evidence exists appearance second population transients, characterized by coarsening tens hundreds nanometers that...
We propose a model describing the high burnup structure inter-granular porosity evolution under irradiation. The of collecting gas diffusing from grains is modeled by exploiting second-order Fokker-Planck expansion cluster-dynamics master equations governing problem, considering nucleation pores, absorption due to diffusional flow grains, size-dependent re-solution pores interaction with fission fragments, vacancy absorption, and pore coalescence. Model predictions on xenon local retention,...