Benchmarking of the MIT High Temperature Gas-cooled Reactor TRISO-coated particle fuel performance model
Thesis (S.M. and S.B.)--Massachusetts Institute of Technology, Dept. of Nuclear Science and Engineering, 2006.
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| Format: | Thesis |
| Language: | eng |
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Massachusetts Institute of Technology
2008
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| Online Access: | http://hdl.handle.net/1721.1/41273 |
| _version_ | 1826205747826917376 |
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| author | Stawicki, Michael A |
| author2 | Ronald G. Ballinger. |
| author_facet | Ronald G. Ballinger. Stawicki, Michael A |
| author_sort | Stawicki, Michael A |
| collection | MIT |
| description | Thesis (S.M. and S.B.)--Massachusetts Institute of Technology, Dept. of Nuclear Science and Engineering, 2006. |
| first_indexed | 2024-09-23T13:18:07Z |
| format | Thesis |
| id | mit-1721.1/41273 |
| institution | Massachusetts Institute of Technology |
| language | eng |
| last_indexed | 2024-09-23T13:18:07Z |
| publishDate | 2008 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/412732019-04-12T13:25:04Z Benchmarking of the MIT High Temperature Gas-cooled Reactor TRISO-coated particle fuel performance model Benchmarking of the Massachusetts Institute of Technology HTGR TRISO-coated particle fuel performance model Stawicki, Michael A Ronald G. Ballinger. Massachusetts Institute of Technology. Dept. of Nuclear Science and Engineering. Massachusetts Institute of Technology. Dept. of Nuclear Science and Engineering. Nuclear Science and Engineering. Thesis (S.M. and S.B.)--Massachusetts Institute of Technology, Dept. of Nuclear Science and Engineering, 2006. Includes bibliographical references. MIT has developed a Coated Particle Fuel Performance Model to study the behavior of TRISO nuclear fuels. The code, TIMCOAT, is designed to assess the mechanical and chemical condition of populations of coated particles and to determine the failure probability of each of the structural coating layers. With this, the code determines the overall particle failure rate. TIMCOAT represents a significant advancement over earlier codes as it includes a pyrocarbon crack induced particle failure mechanism, which applies probabilistic fracture mechanics. As part of the International Atomic Energy Agency (IAEA) Coordinated Research Program (CRP) on coated particle fuel technology, a code benchmark has been developed by the Idaho National Laboratory (INL). The benchmark includes simple analytic studies and more complex simulations of TRISO particles from past and future experiments. For each study a large variety of particle parameters are specified. This thesis reports TIMCOAT's results from the benchmark study. As this was a blind benchmark, no other results are available for comparison. However, TIMCOAT is able to independently calculate several of the parameters specified by the benchmark, and comparisons are made between results obtained using IAEA parameters and TIMCOAT calculated parameters. The material properties which describe the effects of irradiation on pyrolytic carbon are the focus of the comparison. The rates of irradiation induced creep and swelling calculated by TIMCOAT and the rates provided in the benchmark differed by a factor of two to four in some cases and led to differences in particle failure rate by several orders of magnitude. In addition, varying the uncertainties in these and other parameters was found to have a large impart on the failure probability. (cont.) It is concluded that accurate modeling of TRISO particles depends on having very high accuracy data describing material properties and a very good understanding of the uncertainties in those measurements. by Michael A. Stawicki. S.M.and S.B. 2008-04-23T14:38:10Z 2008-04-23T14:38:10Z 2006 2006 Thesis http://hdl.handle.net/1721.1/41273 213436070 eng M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 133 p. application/pdf Massachusetts Institute of Technology |
| spellingShingle | Nuclear Science and Engineering. Stawicki, Michael A Benchmarking of the MIT High Temperature Gas-cooled Reactor TRISO-coated particle fuel performance model |
| title | Benchmarking of the MIT High Temperature Gas-cooled Reactor TRISO-coated particle fuel performance model |
| title_full | Benchmarking of the MIT High Temperature Gas-cooled Reactor TRISO-coated particle fuel performance model |
| title_fullStr | Benchmarking of the MIT High Temperature Gas-cooled Reactor TRISO-coated particle fuel performance model |
| title_full_unstemmed | Benchmarking of the MIT High Temperature Gas-cooled Reactor TRISO-coated particle fuel performance model |
| title_short | Benchmarking of the MIT High Temperature Gas-cooled Reactor TRISO-coated particle fuel performance model |
| title_sort | benchmarking of the mit high temperature gas cooled reactor triso coated particle fuel performance model |
| topic | Nuclear Science and Engineering. |
| url | http://hdl.handle.net/1721.1/41273 |
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