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Division Spotlight
Mathematics & Computation
Division members promote the advancement of mathematical and computational methods for solving problems arising in all disciplines encompassed by the Society. They place particular emphasis on numerical techniques for efficient computer applications to aid in the dissemination, integration, and proper use of computer codes, including preparation of computational benchmark and development of standards for computing practices, and to encourage the development on new computer codes and broaden their use.
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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Jul 2024
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Nuclear Science and Engineering
August 2024
Nuclear Technology
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.”
Yun Goo Kim, Sun Mi Choi, Tae Joon Kim, Jong Seol Moon, Do Hwan Lee (Korea Hydro and Nuclear Power Co. Ltd.)
Proceedings | Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technolgies (NPIC&HMIT 2019) | Orlando, FL, February 9-14, 2019 | Pages 1154-1160
When abnormal event occurs, operator should diagnose the plant status to decide the response operation which is required to mitigate the effect of the event. There are over 200 event in abnormal procedures. Operator should be trained to diagnose the case of abnormal status to maintain the plant safe. However, due to variety of abnormal cases, operational mental workload is relatively high to keep knowledge for each diagnostic assessment. To reduce the mental workload, operator support system based on artificial intelligence is developed. The artificial intelligence based operator support system diagnose the plant status and suggests the abnormal event which has been occurred. Convolutional Neural Networks (CNN) have been widely and successfully applied for image classification. Also, the CNN have led breakthrough in various field not only in image classification. Therefore, the CNN have been reviewed and applied to diagnosis of abnormal status in nuclear power plant operation.