Zirconium alloy getter bed air-ingress thermal failure analysis
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1998.
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| 格式: | Thesis |
| 语言: | eng |
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Massachusetts Institute of Technology
2009
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| 在线阅读: | http://hdl.handle.net/1721.1/49669 |
| _version_ | 1826217070224736256 |
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| author | Hovland, Valerie A. (Valerie Ann), 1975- |
| author2 | Charles Walthers and John H. Lienhard. |
| author_facet | Charles Walthers and John H. Lienhard. Hovland, Valerie A. (Valerie Ann), 1975- |
| author_sort | Hovland, Valerie A. (Valerie Ann), 1975- |
| collection | MIT |
| description | Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1998. |
| first_indexed | 2024-09-23T16:57:35Z |
| format | Thesis |
| id | mit-1721.1/49669 |
| institution | Massachusetts Institute of Technology |
| language | eng |
| last_indexed | 2024-09-23T16:57:35Z |
| publishDate | 2009 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/496692020-07-14T21:49:05Z Zirconium alloy getter bed air-ingress thermal failure analysis Hovland, Valerie A. (Valerie Ann), 1975- Charles Walthers and John H. Lienhard. Massachusetts Institute of Technology. Department of Mechanical Engineering Mechanical Engineering Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1998. Includes bibliographical references (leaf 42). In the event of an unexpected inrush of air into a packed St-909 getter bed, the exothermic reaction of oxygen and pellet material pushes temperatures within the bed to extremely high levels. This failure mode, which could be caused by a line rupture, was modeled, analyzed, and a full-scale experiment was performed in the Tritium Science and Engineering group at Los Alamos National Laboratory to confirm the results that the primary bed container will not fail from overheating. The oxidation of St-909 pellets was modeled and determined to be limited by the oxide diffusing into the pellet material. An effective diffusivity of the oxide into the pellet and its variance with temperature was determined. In the full-scale experiment, air was pumped through the bed at 15 standard liters per minute. Oxygen breaking through the bed was gradual and began after almost one hour of air flow. Maximum temperatures along the centerline of the bed reached 1280°C, primary container temperatures reached 840°C, and the primary container maintained structural integrity throughout the experiment. by Valerie A. Hovland. S.M. 2009-11-06T16:17:12Z 2009-11-06T16:17:12Z 1998 1998 Thesis http://hdl.handle.net/1721.1/49669 42251125 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 67 leaves application/pdf Massachusetts Institute of Technology |
| spellingShingle | Mechanical Engineering Hovland, Valerie A. (Valerie Ann), 1975- Zirconium alloy getter bed air-ingress thermal failure analysis |
| title | Zirconium alloy getter bed air-ingress thermal failure analysis |
| title_full | Zirconium alloy getter bed air-ingress thermal failure analysis |
| title_fullStr | Zirconium alloy getter bed air-ingress thermal failure analysis |
| title_full_unstemmed | Zirconium alloy getter bed air-ingress thermal failure analysis |
| title_short | Zirconium alloy getter bed air-ingress thermal failure analysis |
| title_sort | zirconium alloy getter bed air ingress thermal failure analysis |
| topic | Mechanical Engineering |
| url | http://hdl.handle.net/1721.1/49669 |
| work_keys_str_mv | AT hovlandvalerieavalerieann1975 zirconiumalloygetterbedairingressthermalfailureanalysis |