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Division Spotlight
Mathematics & Computation
Division members promote the advancement of mathematical and computational methods for solving problems arising in all disciplines encompassed by the Society. They place particular emphasis on numerical techniques for efficient computer applications to aid in the dissemination, integration, and proper use of computer codes, including preparation of computational benchmark and development of standards for computing practices, and to encourage the development on new computer codes and broaden their use.
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.”
Edward J. Lahoda
Nuclear Technology | Volume 147 | Number 1 | July 2004 | Pages 102-112
Technical Paper | Thoria-Urania NERI | doi.org/10.13182/NT04-A3517
Articles are hosted by Taylor and Francis Online.
The results of a 2-yr effort to determine the capability of U.S. fuel manufacturers to economically manufacture thorium-uranium dioxide (ThO2-UO2) fuel in plants that have previously only manufactured UO2 fuel with <5% 235U enrichment are presented. It was determined that there were no fundamental obstacles to converting the current plants that manufacture a uranium-oxide-only fuel to a mixed thorium-uranium dioxide fuel. However, the differential costs for manufacturing a 75% ThO2-25% UO2 fuel, with the uranium enriched with 20% 235U, as compared to a 100% UO2 fuel, was between $269 and $291/kg of metal oxide fuel, depending on the manufacturing method used to convert the uranium and thorium feeds to the dioxide powders. More than 90% of this cost was associated with the increased cost of the uranium feed and the addition of the thorium feed. If a 70% ThO2-30% UO2 fuel were used, the differential costs would increase to between $519 and $542/kg of metal oxide fuel, of which >95% is associated with the uranium and thorium feed materials.