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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 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. 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.”
Z. Köllö, C. G. Alecu, H. Moosmann
Fusion Science and Technology | Volume 60 | Number 3 | October 2011 | Pages 972-975
Measurement, Monitoring, and Accountancy | Proceedings of the Ninth International Conference on Tritium Science and Technology | doi.org/10.13182/FST11-A12578
Articles are hosted by Taylor and Francis Online.
In a tritium handling facility it is important to know the volume of the parts of the system for accurate accountancy. The usual methods to determine volumes have several disadvantages concerning contamination issues and accuracy.In this work a novel method is used to determine volumes. The method does not require any liquid or precisely known reference volume. It is simple and the uncertainty of the measurement is lower than 1% for volumes from 10 cm3 to 10 dm3.In this paper the principle of the volume determination device (VDD) designed and built at the Tritium Laboratory Karlsruhe (TLK) is presented, together with a detailed uncertainty calculation. Also the first measurements with the VDD are discussed in detail.