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Division Spotlight
Reactor Physics
The division's objectives are to promote the advancement of knowledge and understanding of the fundamental physical phenomena characterizing nuclear reactors and other nuclear systems. The division encourages research and disseminates information through meetings and publications. Areas of technical interest include nuclear data, particle interactions and transport, reactor and nuclear systems analysis, methods, design, validation and operating experience and standards. The Wigner Award heads the awards program.
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.”
Chung-Hsien Liang, Kuo-Hwa Su
Nuclear Technology | Volume 162 | Number 3 | June 2008 | Pages 333-341
Technical Paper | Nuclear Plant Operations and Control | doi.org/10.13182/NT08-A3960
Articles are hosted by Taylor and Francis Online.
Silica concentration in the primary coolant of a reactor coolant system of a pressurized water nuclear plant is a considerable operational issue. It also becomes a safety issue if the crud is very significant. To keep its amount to a minimum is the basic requirement for the purpose of zinc injection in the primary system and protection against its deposition on the fuel rod and poor heat transfer on the primary system and piping. A boric acid cleanup machine has been developed, designed, and installed on the base floor at the auxiliary building of the Maanshan power station of Taiwan Power Company. It is located above the boric acid tank (BAT). This machine with reverse osmosis method was used to clean up boric acid of ~62 m3 stored in the BAT. The results show that its performance has excellent efficiency and capability. The silica concentration was reduced to ~0.605 ppm from the original value of ~3.150 ppm. The resulting waste contained ~2.52 wt% of boron depending on the original boron amounts in the BAT. After the cleanup is finished, the concentration of boron in the BAT still maintains its operable and safe operating range of 7000 to 7700 ppm. Finally, the written procedure has been completed in order that the machine will be applied as a routine cleanup system.