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2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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NNSA awards BWXT $1.5B defense fuels contract
The Department of Energy’s National Nuclear Security Administration has awarded BWX Technologies a contract valued at $1.5 billion to build a Domestic Uranium Enrichment Centrifuge Experiment (DUECE) pilot plant in Tennessee in support of the administration’s efforts to build out a domestic supply of unobligated enriched uranium for defense-related nuclear fuel.
Jae Min Kim, Gyumin Lee, Seung Jun Lee (UNIST)
Proceedings | Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technolgies (NPIC&HMIT 2019) | Orlando, FL, February 9-14, 2019 | Pages 422-430
Nuclear power plants have abnormal operating procedures to prepare abnormal events occurring. An operator should choose and follow the appropriate procedure according to alarms and plant parameters which indicate the plant state. However, with enormous information, it is sometimes hard for the operators to judge the plant state in a short period of time. In the field, the skilled operators are well trained in the entry conditions of the abnormal operating procedures, so that they can quickly select a procedure that is appropriate to the current situation. Nevertheless, this task has a potential risk for less skilled operators to make mistakes of the judgement, which would result in response time delayed. Therefore, this paper suggests nuclear power plants abnormality diagnosis algorithm to support the judgement. This paper covers two of three steps to develop the diagnosis system; setting the training data production environment by analyzing the abnormal operating procedures and comparison between deep learning algorithms using the convolutional and recurrent neural networks. The abnormal operating data were generated from the nuclear power plant simulator. In addition, to reduce the dimensionality of the data, principal component analysis was used as data preprocessing. The algorithm is expected to reduce work load of the operators by providing selection of the proper procedure in a short time with high accuracy.