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Division Spotlight
Decommissioning & Environmental Sciences
The mission of the Decommissioning and Environmental Sciences (DES) Division is to promote the development and use of those skills and technologies associated with the use of nuclear energy and the optimal management and stewardship of the environment, sustainable development, decommissioning, remediation, reutilization, and long-term surveillance and maintenance of nuclear-related installations, and sites. The target audience for this effort is the membership of the Division, the Society, and the public at large.
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.”
A. Moisseytsev, E. Hoffman, C. Grandy
Nuclear Technology | Volume 173 | Number 3 | March 2011 | Pages 251-269
Technical Paper | Heat Transfer | doi.org/10.13182/NT11-A11660
Articles are hosted by Taylor and Francis Online.
The selection of the operating temperatures for a sodium-cooled fast reactor (SFR) always involves a trade-off between the plant performance and cost. In this work, the general trends with an increase of the core outlet temperature were calculated for the Advanced Burner Reactor (ABR). First, the benefits of higher temperatures in terms of the higher plant efficiency were calculated for several power conversion systems. To characterize the disadvantages of higher temperatures, the safety margins were investigated for the design conditions, normal operational transients, and beyond-design-basis accidents. The limiting criteria were identified for both oxide and metal fuel core designs. In addition, the effect of the higher temperatures on the structural thicknesses was estimated. A preliminary cost analysis incorporating both benefits and cost penalties of higher temperatures showed the economical benefit potential of higher temperatures, provided that the safety requirements are satisfied by the design and/or material selection.