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Division Spotlight
Human Factors, Instrumentation & Controls
Improving task performance, system reliability, system and personnel safety, efficiency, and effectiveness are the division's main objectives. Its major areas of interest include task design, procedures, training, instrument and control layout and placement, stress control, anthropometrics, psychological input, and motivation.
Meeting Spotlight
Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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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.”
Gee Yong Park, Jinho Park, Poong Hyun Seong
Nuclear Technology | Volume 145 | Number 2 | February 2004 | Pages 177-188
Technical Paper | Thermal Hydraulics | doi.org/10.13182/NT04-A3468
Articles are hosted by Taylor and Francis Online.
Information on the steam and feedwater flow rates in the secondary loop of nuclear power plants is valuable for thermal efficiency estimation and the related controllers in nuclear power plants. However, the high level of noise in measuring flow rates detracts from the usefulness of this information and forces the operator to exclude the values of the steam and feedwater flow rates when controlling the water level of a steam generator at low operating powers. In recent years, it has been proposed that the wavelet transform can reconstruct a signal that approximates very closely the original signal under a high level of noise. A possible way of differentiating the flow rate from noise is proposed by use of the wavelet noise-reduction or denoising technique and, as one of the potential applications for nuclear power plants, the wavelet transform is incorporated into the water-level controller of steam generators for successful control at low operating powers.