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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.”
I. García-Cortés, F. L. Tabarés, D. Tafalla, R. Balbín, J. M. Carmona, A. Hidalgo, J. A. Ferreira, A. López-Fraguas, K. J. McCarthy, V. I. Vargas, TJ-II Team
Fusion Science and Technology | Volume 50 | Number 2 | August 2006 | Pages 307-312
Technical Paper | Stellarators | doi.org/10.13182/FST06-A1251
Articles are hosted by Taylor and Francis Online.
Neutral beam injection (NBI) heating in the TJ-II stellarator faces the particular challenge of unwanted particle sources, which for relatively low injected powers drive the plasma to collapse at relatively low values of line density. This effect is aggravated by an enhancement of particle confinement that occurs as density increases. At present, candidate magnetic topologies that make use of intrinsic islands at the plasma edge are being investigated experimentally. This concept uses magnetic configurations having a rotational transform with a rational value at the edge, i.e., an island divertor (ID). Recently, impurity injection experiments have been performed for ID and limiter configurations to investigate the divertor effect in TJ-II. Indeed, the enhanced screening of injected impurities, as well as the low intrinsic plasma contamination found in these ID plasmas, points to such magnetic configurations as being good candidates for the NBI experimental program in TJ-II.