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Division Spotlight
Fusion Energy
This division promotes the development and timely introduction of fusion energy as a sustainable energy source with favorable economic, environmental, and safety attributes. The division cooperates with other organizations on common issues of multidisciplinary fusion science and technology, conducts professional meetings, and disseminates technical information in support of these goals. Members focus on the assessment and resolution of critical developmental issues for practical fusion energy applications.
Meeting Spotlight
Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Latest News
Vogtle-3 shuts down for valve issue
One of the new Vogtle units in Georgia was shut down unexpectedly on Monday last week for a valve issue that has since been investigated and repaired. According to multiple local news outlets, Georgia Power reported on July 17 that Unit 3 was back in service.
Southern Company spokesperson Jacob Hawkins confirmed that Vogtle-3 went off line at 9:25 p.m. local time on July 8 “due to lowering water levels in the steam generators caused by a valve issue on one of the three main feedwater pumps.”
L. Desgranges, M. P. Ferroud-Plattet, R. Alloncle, I. Aubrun, J. M. Untrau, P. Lhuillery
Nuclear Technology | Volume 163 | Number 2 | August 2008 | Pages 252-260
Technical Paper | Fuel Cycle and Management | doi.org/10.13182/NT08-A3985
Articles are hosted by Taylor and Francis Online.
In dry storage conditions, the accidental scenario takes into consideration a defective nuclear fuel rod reacting with the atmosphere. In order to gain information on French nuclear fuel, a new experimental setup named CROCODILE was developed to perform oxidation experiments in hot cells on defective fuel rodlets with controlled temperature and atmosphere. The first test was performed at 623 K in air with a rodlet taken from a four-cycle mixed-oxide fuel rod in which defects were simulated by drilling holes in the cladding. After 139 h of oxidation, significant degradation was observed with the development of radial and axial cracks. At this point, the experiment was stopped and the rodlet was analyzed. The main features observed were (a) a significant strain in the cladding around the cracks, which resulted in the detachment of fuel fragments; (b) no evidence of hydride accumulation in the cladding; and (c) a heterogeneous propagation of the oxidation front in the nuclear ceramic. The influence of the simulated defect is discussed and the use of a round defect is examined.