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Division Spotlight
Thermal Hydraulics
The division provides a forum for focused technical dialogue on thermal hydraulic technology in the nuclear industry. Specifically, this will include heat transfer and fluid mechanics involved in the utilization of nuclear energy. It is intended to attract the highest quality of theoretical and experimental work to ANS, including research on basic phenomena and application to nuclear system design.
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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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.”
Guillermo J. Cruz, Maria Guadalupe Olayo, Angel Flores, Samuel R. Barocio, Régulo López, Esteban Chávez, Leandro Meléndez
Fusion Science and Technology | Volume 39 | Number 1 | January 2001 | Pages 27-32
Technical Paper | doi.org/10.13182/FST01-A148
Articles are hosted by Taylor and Francis Online.
The evaluation of the electron temperature, density, and plasma potential in a glow cleaning discharge hydrogen plasma in the Novillo tokamak is presented. The objective was to investigate the plasma conditions allowing the removal of impurities from the vacuum vessel, thus avoiding the formation of other chemical compounds that could remain adhered to its inner walls. The discharges were accomplished through two anodes and one cathode within the 0.07 to 0.2-mbar-pressure interval at a power density in the range of 100 to 900 W/m2. The plasma parameters were obtained using Langmuir probes. The results indicated that the electron temperature lay between 3 and 10 eV, the electron density was approximately 108 to 109 cm-3, and the plasma potential was in the 10- to 18-V range. The electron energy was in the range of the dissociation energy for most impurities found in the Novillo tokamak.