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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.”
André L. Rogister
Fusion Science and Technology | Volume 37 | Number 2 | March 2000 | Pages 271-286
Instabilities and Transport | doi.org/10.13182/FST00-A11963222
Articles are hosted by Taylor and Francis Online.
The phenomenology of transport in magnetically confined plasmas is briefly described and the basic physical concepts underlying the theories of both anomalous and neoclassical transport are reviewed. Anomalous transport is a consequence of supra-thermal electric and magnetic fluctuations driven unstable by various mechanisms. The excited modes saturate by inducing a relaxation of the profiles towards the marginally stable state and via nonlinear coupling of the various modes. Specific theoretical models are described, together with their successes and drawbacks in the light of observed characteristics of plasma confinement. An estimate of the nuclear heating power required to balance the anomalous losses in the International Tokamak Experimental Reactor (ITER) is obtained on the basis of the electrostatic drift wave instability model. Large-scale gyrokinetic turbulence simulations and various “theoretical” transport models are discussed. Recent improvements of neoclassical theory, required in the vicinity of transport barriers, are described.