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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. E. Attenberger, W. A. Houlberg
Fusion Science and Technology | Volume 4 | Number 2 | September 1983 | Pages 129-134
Plasma Engineering | doi.org/10.13182/FST83-A22856
Articles are hosted by Taylor and Francis Online.
Energy relaxation and spatial diffusion of fast alpha particles are incorporated into a multienergy group model which is coupled to a fluid transport code for the thermal plasma species. The multienergy group equations evolve the temporal- and spatial-dependent alpha particle distribution function and thus determine alpha particle heating and loss rates for arbitrary thermalization and diffusion models. The effects of deviations from classical, local thermalization on plasma performance are discussed. It is shown that spatial diffusion can lead to inversion of the fast ion distribution function even if thermalization remains classical. This inversion may drive instabilities and lead to anomalous thermalization. Ripple-induced spatial diffusion of fast alphas is used to illustrate the importance of extending the analysis to include pitch angle dependence.