Application of thermochemical modeling to assessment/evaluation of nuclear fuel behavior

Theodore M. Besmann; Jacob W. McMurray; Srdjan Simunovic

doi:10.1016/j.calphad.2016.04.004

Application of thermochemical modeling to assessment/evaluation of nuclear fuel behavior

Theodore M. Besmann, Jacob W. McMurray, Srdjan Simunovic

Multiscale Materials

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

The combination of new fuel compositions and higher burn-ups envisioned for the future means that representing fuel properties will be much more important, and yet more complex. Behavior within the oxide fuel rods will be difficult to model owing to the high temperatures, and the large number of elements generated and their significant concentrations that are a result of fuels taken to high burn-up. This unprecedented complexity offers an enormous challenge to the thermochemical understanding of these systems and opportunities to advance solid solution models to describe these materials. This paper attempts to model and simulate that behavior using an oxide fuels thermochemical description to compute the equilibrium phase state and oxygen potential of LWR fuel under irradiation.

Original language	English
Pages (from-to)	47-51
Number of pages	5
Journal	Calphad: Computer Coupling of Phase Diagrams and Thermochemistry
Volume	55
DOIs	https://doi.org/10.1016/j.calphad.2016.04.004
State	Published - Dec 1 2016

Funding

The authors wish to acknowledge the U. S. Department of Energy, Office of Nuclear Energy , Nuclear Energy Advanced Modeling and Simulation Program and Fuel Cycle R&D Program for their support of this research.

Funders	Funder number
Nuclear Energy
U.S. Department of Energy
Office of Nuclear Energy

Keywords

Fission product
Nuclear fuel
Oxygen potential
Thermodynamic modeling

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10.1016/j.calphad.2016.04.004

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title = "Application of thermochemical modeling to assessment/evaluation of nuclear fuel behavior",

abstract = "The combination of new fuel compositions and higher burn-ups envisioned for the future means that representing fuel properties will be much more important, and yet more complex. Behavior within the oxide fuel rods will be difficult to model owing to the high temperatures, and the large number of elements generated and their significant concentrations that are a result of fuels taken to high burn-up. This unprecedented complexity offers an enormous challenge to the thermochemical understanding of these systems and opportunities to advance solid solution models to describe these materials. This paper attempts to model and simulate that behavior using an oxide fuels thermochemical description to compute the equilibrium phase state and oxygen potential of LWR fuel under irradiation.",

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AU - McMurray, Jacob W.

AU - Simunovic, Srdjan

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AB - The combination of new fuel compositions and higher burn-ups envisioned for the future means that representing fuel properties will be much more important, and yet more complex. Behavior within the oxide fuel rods will be difficult to model owing to the high temperatures, and the large number of elements generated and their significant concentrations that are a result of fuels taken to high burn-up. This unprecedented complexity offers an enormous challenge to the thermochemical understanding of these systems and opportunities to advance solid solution models to describe these materials. This paper attempts to model and simulate that behavior using an oxide fuels thermochemical description to compute the equilibrium phase state and oxygen potential of LWR fuel under irradiation.

KW - Fission product

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KW - Oxygen potential

KW - Thermodynamic modeling

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ER -

Application of thermochemical modeling to assessment/evaluation of nuclear fuel behavior

Abstract

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Keywords

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