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Organized to promote the advancement of knowledge in the use of nuclear science and technologies in the aerospace application. Specialized nuclear-based technologies and applications are needed to advance the state-of-the-art in aerospace design, engineering and operations to explore planetary bodies in our solar system and beyond, plus enhance the safety of air travel, especially high speed air travel. Areas of interest will include but are not limited to the creation of nuclear-based power and propulsion systems, multifunctional materials to protect humans and electronic components from atmospheric, space, and nuclear power system radiation, human factor strategies for the safety and reliable operation of nuclear power and propulsion plants by non-specialized personnel and more.
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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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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.”
Chungpin Liao, Mujid S. Kazimi
Fusion Science and Technology | Volume 21 | Number 3 | May 1992 | Pages 1845-1851
Plasma-Facing Component | doi.org/10.13182/FST92-A29987
Articles are hosted by Taylor and Francis Online.
The divertor technology has become the focus of concern for prospective steady state tokamak reactors. The imposed heat flux and particle flux conditions cast doubt on the feasibility of any solid surface divertor. The aim of this work is to evaluate the feasibility of the existing concepts of liquid metal divertors from both the physics and engineering points of view. It is found that lithium is not a favorable liquid metal due to the large tritium inventory that may develop in the form of solid hydride LiH. Gallium, on the other hand, does not form hydride within the temperature range of interest, and hence is considered a favorable material. Slowly flowing thin film and pool type divertors are found to be undesirable owing to the possible blistering erosion and resulting plasma contamination. The popular concept of self-cooled liquid metal film divertor suffers mainly from the linear MHD instability, in addition to other complicating factors such as the variation of the liquid metal electric property, dynamics of halo current, and the compatibility problem of insulator coating with the liquid metal. The liquid gallium droplet curtain divertor is evaluated to be the most feasible. However, unless an effective helium pumping scheme can be developed, the goal of controling the neutral recycling coefficient by liquid metal divertors can not be accomplished.