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Title: Uncertainty and sensitivity analysis of fission gas behavior in engineering-scale fuel modeling

Journal Article · · Journal of Nuclear Materials
 [1];  [2];  [1];  [1];  [1];  [1];  [3];  [4];  [1]
  1. Idaho National Lab. (INL), Idaho Falls, ID (United States)
  2. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  3. Polytechnic Univ. of Milan (Italy)
  4. European Commission, Karlsruhe (Germany). Joint Research Centre

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 and a recently implemented physics-based model for the coupled fission gas release and swelling. Through the integration of BISON with the DAKOTA software, a sensitivity analysis of the results to selected model parameters is carried out based on UO2 single-pellet simulations covering different power regimes. The parameters are varied within ranges representative of the relative uncertainties and consistent with the information from the open literature. The study leads to an initial quantitative assessment of the uncertainty in fission gas behavior modeling with the parameter characterization presently available. Also, the relative importance of the single parameters is evaluated. Moreover, a sensitivity analysis is carried out based on simulations of a fuel rod irradiation experiment, pointing out a significant impact of the considered uncertainties on the calculated fission gas release and cladding diametral strain. The results of the study indicate that the commonly accepted deviation between calculated and measured fission gas release by a factor of 2 approximately corresponds to the inherent modeling uncertainty at high fission gas release. Nevertheless, higher deviations may be expected for values around 10% and lower. Implications are discussed in terms of directions of research for the improved modeling of fission gas behavior for engineering purposes.

Research Organization:
Idaho National Laboratory (INL), Idaho Falls, ID (United States)
Sponsoring Organization:
USDOE Office of Nuclear Energy (NE)
Grant/Contract Number:
AC07-05ID14517
OSTI ID:
1162205
Alternate ID(s):
OSTI ID: 1246443
Report Number(s):
INL/JOU-14-31175; TRN: US1600461
Journal Information:
Journal of Nuclear Materials, Vol. 456; ISSN 0022-3115
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 79 works
Citation information provided by
Web of Science

References (45)

Fundamental aspects of nuclear reactor fuel elements report January 1976
Numerical algorithms for intragranular fission gas release journal July 2000
On the role of grain boundary diffusion in fission gas release journal February 2001
Modelling intragranular fission gas release in irradiation of sintered LWR UO2 fuel journal July 2002
An efficient model for the analysis of fission gas release journal April 2002
The structure of fuel element codes journal April 1980
On the significance of modeling nuclear fuel behavior with the right representation of physical phenomena journal February 2011
TRANSURANUS: a fuel rod analysis code ready for use journal June 1992
Physics-based modelling of fission gas swelling and release in UO2 applied to integral fuel rod analysis journal March 2013
Multidimensional multiphysics simulation of nuclear fuel behavior journal April 2012
A new fission-gas release model journal August 1983
The development of grain-face porosity in irradiated oxide fuel journal February 2004
Nucleation and growth of intragranular defect and insoluble atom clusters in nuclear oxide fuels journal April 2012
Multidimensional multiphysics simulation of TRISO particle fuel journal November 2013
A Calculation on the Migration of Fission Gas in Material Exhibiting Precipitation and Re-solution of Gas Atoms Under Irradiation journal August 1969
Modelling of grain face bubbles coalescence in irradiated UO2 fuel journal February 2008
Vacancy Potential and Void Growth on Grain Boundaries journal January 1975
Modelling of fission gas release and gaseous swelling of light water reactor fuels journal April 1997
Calculation of grain boundary gaseous swelling in UO2 journal July 2008
Effect of external restraint on bubble swelling in U02 fuels journal August 1997
Uncertainty and sensitivity analysis of the nuclear fuel thermal behavior journal December 2012
Isothermal grain growth kinetics in sintered UO2 pellets journal December 1973
Average Grain Size in Polycrystalline Ceramics journal August 1969
The effect of grain size on the swelling and gas release properties of uo2 during irradiation journal February 1974
Fission gas release from power-ramped UO2 fuel journal June 1986
An experimental study of grain growth in mixed oxide samples with various microstructures and plutonium concentrations journal March 2013
Multiscale Modelling for the Fission gas Behaviour in the Transuranus code journal December 2011
The diffusion coefficients of gaseous and volatile species during the irradiation of uranium dioxide journal June 1982
A review of the diffusion coefficient of fission-product rare gases in uranium dioxide journal January 1978
Gas release mechanisms in UO 2 —a critical review journal January 1980
Effect of stoichiometry on diffusion of xenon in UO2 journal March 1972
Xenon-133 diffusion and trapping in single-crystal uranium dioxide journal December 1972
Release of fission products (Xe, I, Te, Cs, Mo and Tc) from polycrystalline UO2 journal June 1988
The fractal nature of the surface of uranium dioxide: a resolution of the short-lived/stable gas release dichotomy journal June 2001
The growth of fission gas bubbles in irradiated uranium dioxide journal March 1969
Atomic mechanisms of mass transport in ceramic nuclear fuel materials journal January 1990
Theory of diffusion-limited precipitation journal September 1958
The stability of gas bubbles in an irradiation environment journal June 1969
The distribution of intragranular fission gas bubbles in UO2 during irradiation journal February 1971
On the behaviour of intragranular fission gas in UO2 fuel journal June 2000
Re-solution of fission gas – A review: Part I. Intragranular bubbles journal August 2006
Molecular dynamics study of Xe bubble re-solution in UO2 journal January 2012
Grain-boundary diffusion in uranium dioxide: The correlation between sintering and creep and a reinterpretation of creep mechanism journal June 1979
Atomistic modeling of intrinsic and radiation-enhanced fission gas (Xe) diffusion in <mml:math altimg="si236.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd" xmlns:sa="http://www.elsevier.com/xml/common/struct-aff/dtd"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">UO</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn><mml:mo>±</mml:mo><mml:mi>x</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math>: Implications for nuclear fuel performance modeling journal August 2014
Guidance to design grain boundary mobility experiments with molecular dynamics and phase-field modeling journal February 2013

Cited By (3)

Atomistic model of xenon gas bubble re-solution rate due to thermal spike in uranium oxide journal August 2018
Modeling intra-granular fission gas bubble evolution and coarsening in uranium dioxide during in-pile transients journal September 2020
Rethinking sensitivity analysis of nuclear simulations with topology conference April 2016