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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.
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Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
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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.”
N.M. Ghoniem, D.H. Berwald
Fusion Science and Technology | Volume 4 | Number 2 | September 1983 | Pages 439-444
Materials Engineering | doi.org/10.13182/FST83-A22903
Articles are hosted by Taylor and Francis Online.
Lifetime estimates of blanket components are extremely useful during the design process of fusion reactor blankets. In this paper, we present a preliminary analysis for the performance of HT-9 in the blanket modules of a reference Tandem Mirror Hybrid Reactor (TMHR). We utilize the available data base for HT-9 as well as other ferritic alloys to develop approximate design equations for void swelling, the shift in the ductile-to-brittle-transition temperature (DBTT), and thermal creep rupture at high temperature. HT-9 is used in a relatively low temperature design (below 500°C) to give an allowable design stress on the order of 145 MPa for up to 10 operating years. A minimum structure temperature of 365°C is imposed on the design to ensure a good margin of safety against neutron embrittlement. As an added design feature, the moderate DBTT shifts are almost entirely eliminated by a 450°C anneal for 50–60 hours, once every year. The lifetime of the blanket is estimated to exceed 10 years, and is based on the maximum limit for total elastic plus inelastic strains.