ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Division Spotlight
Operations & Power
Members focus on the dissemination of knowledge and information in the area of power reactors with particular application to the production of electric power and process heat. The division sponsors meetings on the coverage of applied nuclear science and engineering as related to power plants, non-power reactors, and other nuclear facilities. It encourages and assists with the dissemination of knowledge pertinent to the safe and efficient operation of nuclear facilities through professional staff development, information exchange, and supporting the generation of viable solutions to current issues.
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!
Latest Magazine Issues
Jul 2024
Jan 2024
Latest Journal Issues
Nuclear Science and Engineering
August 2024
Nuclear Technology
Fusion Science and Technology
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.”
D.S. Barnett, M.S. Kazimi
Fusion Science and Technology | Volume 15 | Number 2 | March 1989 | Pages 839-846
Safety and Environment — I | doi.org/10.13182/FST89-A39799
Articles are hosted by Taylor and Francis Online.
The LITFIRE code was modified and used to model lithium chemical reactions with steam-air mixtures in situations representative of accidental spills in fusion reactors. New water pool nodes were added to the primary and secondary cells representing the reactor and its building. An iterative energy balance routine was developed to determine the temperature of the cell gas; heat transfer to structures was modified to include the effect of water condensation and the cell gas emissivity calculation was changed to account for the presence of polar water vapor molecules. Calculations were performed describing a spill on the building floor as well as a spill within the plasma chamber. Humidity and steam injection were also represented. The results indicated that the primary effect of the steam was to raise the emissivity of the cell gas, and thus the gas temperature and pressure, while reducing somewhat the temperatures of both the lithium combustion zone above the pool and the lithium pool itself.