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Data mining reactor fuel grab load trace data to support nuclear core condition monitoring

West, G.M. and Jahn, G.J. and McArthur, S.D.J. and McDonald, J.R. and Reed, J. (2006) Data mining reactor fuel grab load trace data to support nuclear core condition monitoring. IEEE Transactions on Nuclear Science, 53 (3). pp. 1494-1503. ISSN 0018-9499

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    Abstract

    A critical component of an advanced-gas cooled reactor (AGR) station is the graphite core. As a station ages, the graphite bricks that comprise the core can distort and may eventually crack. As the core cannot be replaced the core integrity ultimately determines the station life. Monitoring these distortions is usually restricted to the routine outages, which occur every few years, as this is the only time that the reactor core can be accessed by external sensing equipment. However, during weekly refueling activities measurements are taken from the core for protection and control purposes. It is shown in this paper that these measurements may be interpreted for condition monitoring purposes, thus potentially providing information relating to core condition on a more frequent basis. This paper describes the data-mining approach adopted to analyze this data and also describes a software system designed and implemented to support this process. The use of this software to develop a model of expected behavior based on historical data, which may highlight events containing unusual features possibly indicative of brick cracking, is also described. Finally, the implementation of this newly acquired understanding in an automated analysis system is described.

    Item type: Article
    ID code: 11595
    Keywords: condition monitoring, data analysis, data mining, distortion measurement, fission reactors, fuels, inductors, information resources, nuclear power generation, programmable control, Electrical engineering. Electronics Nuclear engineering
    Subjects: Technology > Electrical engineering. Electronics Nuclear engineering
    Department: Faculty of Engineering > Electronic and Electrical Engineering
    Professional Services > Corporate Services Directorate
    Related URLs:
      Depositing user: Strathprints Administrator
      Date Deposited: 01 Dec 2011 13:32
      Last modified: 17 Jul 2013 08:12
      URI: http://strathprints.strath.ac.uk/id/eprint/11595

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