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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.”
Sandro Pelloni, Edward T. Cheng, Mark J. Embrechts
Fusion Science and Technology | Volume 16 | Number 1 | August 1989 | Pages 53-64
Technical Paper | Blanket Engineering | doi.org/10.13182/FST89-A29096
Articles are hosted by Taylor and Francis Online.
Self-shielding characteristics for two aqueous lithium salt tritium-producing blankets for next-generation fusion devices are examined. The aqueous self-cooled blanket (ASCB) concept is a very simple blanket concept that relies only on structural material and coolant. Lithium compounds are dissolved in water to provide for tritium production. An ASCB driver blanket would provide a low-technology, low-temperature environment for blanket test modules in a next-generation fusion reactor. The primary functions of such a blanket would be shielding, energy removal, and tritium production. One driver blanket studied is the concept proposed for the Next European Torus (NET), while the other is indicative of the inboard shield design for the Engineering Test Reactor (TIBER II/ETR) proposed by the United States. It is found that no significant gains in tritium breeding can be achieved in the stainless steel NET blanket if spatial and energy self-shielding effects are considered, and the heterogeneity effects are also insignificant. The tungsten TIBER II/ETR blanket shows a 5% increase in tritium production in the shielding blanket when energy self-shielding effects are considered; however, it shows a drastic increase in the tritium breeding ratio due to heterogeneity effects.