Design optimization and analysis of coated particle fuel using advanced fuel performance modeling techniques
Name
70714166-MIT.pdf
Description
Full printable version
Size
7.35 MB
Format
Adobe PDF
Checksum (MD5)
596977afd75e3a2935d6969683d5abed
Author(s)
Soontrapa, Chaiyod
Advisor(s)
Ronald G. Ballinger.
Alternative Title
Coated particle fuel using advanced fuel performance modeling techniques
Date Issued
2005
Publisher
Massachusetts Institute of Technology
Abstract
Modifying material properties provides another approach to optimize coated particle fuel used in pebble bed reactors. In this study, the MIT fuel performance model (TIMCOAT) was applied after benchmarking against the experiment results. The optimization study focuses on the fracture toughness of silicon carbide and Bacon anisotropy factor (BAF) of pyrocarbon. The variations on the silicon carbide toughness show that higher fracture toughness leads to a lower fuel failure probability, as expected. However, the results from the BAF variations reveal that a higher BAF lowers a fuel failure probability. This quite contradicts the generally believed notion that a higher BAF would increase fuel failures. In addition to the fuel design optimization, the failure characteristics of coated particle fuel are explained and the key factors influencing such characteristics are identified.
Description
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Nuclear Engineering, 2005.
Includes bibliographical references (p. 154).
Subjects
Nuclear Engineering.
MIT Department
Massachusetts Institute of Technology. Department of Nuclear Engineering
Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
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