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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.”
K. H. Finken, D. Reiter, T. Denner, K. H. Dippel, J. Hobirk, G. Mank, H. Kever, G. H. Wolf, N. Noda, A. Miyahara, T. Shoji, K. N. Sato, K. Akaishi, J. A. Boedo, J. N. Brooks, R. W. Conn, W. J. Corbett, R. P. Doerner, D. Goebel, D. S. Gray, D. L. Hillis, J. Hogan, R. T. McGrath, M. Matsunaga, R. Moyer, R. E. Nygren, J. Watkins
Fusion Science and Technology | Volume 47 | Number 2 | February 2005 | Pages 126-137
Technical Paper | TEXTOR: Plasma-Wall Interactions | doi.org/10.13182/FST05-A694
Articles are hosted by Taylor and Francis Online.
The Advanced Limiter Test (ALT) project is the focus of a fruitful and intense International Energy Agreement collaboration on TEXTOR. The pump limiter is a mechanical boundary that is laid out for taking the full heat load of TEXTOR, namely 8 MW (assuming 2 MW radiated power) for 10 s, and provides a pumping efficiency of at least 5% of the working gas. This layout is adopted from the requirements of a fusion reactor: It is mandatory to remove both the full power that is convected to the limiter or divertor and the helium ash that is generated in the fusion process. In order to obtain pumping for all gases, the ALT-II is equipped with turbomolecular pumps. A short description of ALT-II is given, and the power and particle fluxes to the limiter surface and into the exhaust scoops are discussed. Requirements of the helium removal rate for a reactor and relevant measurements are discussed, and particle removal and the power distribution to the limiters are treated. Related topics of the ALT-II program were hydrogen recycling and the measurement of turbulence-induced anomalous particle transport in the plasma edge.