Modeling reactivity insertion experiments of TRISO particles in NSRR using BISON

D. Schappel; N. R. Brown; K. A. Terrani

doi:10.1016/j.jnucmat.2019.151965

Modeling reactivity insertion experiments of TRISO particles in NSRR using BISON

D. Schappel, N. R. Brown, K. A. Terrani

Particle Fuel Forms

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

19 Scopus citations

Abstract

This research presents BISON simulations of stress, temperature, and failure probability of tristructural isotropic (TRISO) fuel particles subjected to transient power pulse conditions in the Nuclear Safety Research Reactor (NSRR). By modifying the default elastic properties of the PyC and the UO₂ coefficient of thermal expansion correlation, BISON was found to produce suitable agreement with the observed and independently simulated results when appropriate shape and scale Weibull parameters for SiC failure were chosen. The Weibull parameter effects were also explored within the range of SiC failure and were applied using experimental data from hemispherical crush testing.

Original language	English
Article number	151965
Journal	Journal of Nuclear Materials
Volume	530
DOIs	https://doi.org/10.1016/j.jnucmat.2019.151965
State	Published - Mar 2020

Funding

The authors acknowledge the BISON and MOOSE code developers for their technical support and the high-performance computing resources made available for this work at Idaho National Laboratory. Aaron Wysocki and Nathan Capps performed a thorough review of the manuscript. This research was supported by the Transformational Challenge Reactor program , US Department of Energy , Office of Nuclear Energy . We do not have any conflicts of interest on this project. The authors on this manuscript are employed by Oak Ridge National Laboratory and University of Tennessee and received funding for this work from the Transformational Challenge Reactor project.The authors acknowledge the BISON and MOOSE code developers for their technical support and the high-performance computing resources made available for this work at Idaho National Laboratory. Aaron Wysocki and Nathan Capps performed a thorough review of the manuscript. This research was supported by the Transformational Challenge Reactor program, US Department of Energy, Office of Nuclear Energy. We do not have any conflicts of interest on this project. The authors on this manuscript are employed by Oak Ridge National Laboratory and University of Tennessee and received funding for this work from the Transformational Challenge Reactor project .

Funders	Funder number
US Department of Energy
Office of Nuclear Energy
Oak Ridge National Laboratory
University of Tennessee
Idaho National Laboratory

Keywords

BISON
Fracture
NSRR
Reactivity
Silicon carbide
TRISO

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10.1016/j.jnucmat.2019.151965

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abstract = "This research presents BISON simulations of stress, temperature, and failure probability of tristructural isotropic (TRISO) fuel particles subjected to transient power pulse conditions in the Nuclear Safety Research Reactor (NSRR). By modifying the default elastic properties of the PyC and the UO2 coefficient of thermal expansion correlation, BISON was found to produce suitable agreement with the observed and independently simulated results when appropriate shape and scale Weibull parameters for SiC failure were chosen. The Weibull parameter effects were also explored within the range of SiC failure and were applied using experimental data from hemispherical crush testing.",

keywords = "BISON, Fracture, NSRR, Reactivity, Silicon carbide, TRISO",

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Modeling reactivity insertion experiments of TRISO particles in NSRR using BISON

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