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Division Spotlight
Fusion Energy
This division promotes the development and timely introduction of fusion energy as a sustainable energy source with favorable economic, environmental, and safety attributes. The division cooperates with other organizations on common issues of multidisciplinary fusion science and technology, conducts professional meetings, and disseminates technical information in support of these goals. Members focus on the assessment and resolution of critical developmental issues for practical fusion energy applications.
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.”
S. Sharafat, C. P. C. Wong, E. E. Reis, THE ARIES TEAM
Fusion Science and Technology | Volume 19 | Number 3 | May 1991 | Pages 901-907
Advanced Reactor | doi.org/10.13182/FST91-A29459
Articles are hosted by Taylor and Francis Online.
The ARIES-I reactor is a 1000-MWe, DT-burning tokamak reactor that combines present-day physics with advanced engineering technology such as high-field superconducting magnets and low-activation SiC composites as structural material. Recent developments in the manufacturing of fiber-reinforced ceramics for improved mechanical properties make these materials promising candidates for future fusion reactors. The low-activation, low-afterheat characteristics of SiC can lead to an inherently safe reactor design with a Class-C waste-disposal rating. The first wall, blanket, shield, and the divertor all use SiC composite as structural material and helium as coolant. The thermomechanical behavior of the first wall is analyzed using the ANSYS finite-element code. The analysis shows that the first wall performs well below suggested allowable stress and temperature limits. Although the finite element analysis assumes idealized conditions, the results indicate that SiC composite materials could perform well under specified operating conditions. Given the potential safety and environmental advantages of SiC composites, the current large-scale developmental efforts taking place outside of the fusion community should be complemented by R&D efforts that focus on neutron- and ionizing-irradiation effects on SiC composite materials.