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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!
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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.”
V. J. Corcoran, C. A. Campbell, P. B. Bothwell
Fusion Science and Technology | Volume 21 | Number 2 | March 1992 | Pages 727-732
Waste Management | doi.org/10.13182/FST92-A29834
Articles are hosted by Taylor and Francis Online.
Current UK strategy for decommissioning stainless steel plant used for tritium containment centres on heating/melting the bulk metal to effect release of dissolved gases. However, hydrogen isotope containment vessels used for approximately 20 years with mercury pumps and exposed to air and water impurities, exhibit tritium burdens greatly exceeding those predicted by simple gas solution in the parent metal. Investigation into the location of, and activity release from, the vessel material indicate the existence of two major tritium sinks:- (i) the bulk metal where in-depth contamination arises from diffusion/solution; and (ii) a highly active surface layer, responsible for holding the main tritium inventory. The relatively rapid release of tritium from the surface layer at room temperature, particularly under moist conditions demands that this latter activity must be removed before plant dismantling and heating/melting is effected. Against this requirement, laboratory work has been performed to evaluate methods of effectively decontaminating stainless steel plant items by gas purge and heat treatment and also to confirm theoretical diffusion/solution calculations as an acceptable baseline for estimating gas solution in the bulk metal. This work reports the effect of wet outgassing primary containments and the effect of heating/melting on tritium burdens in stainless steel.