Aging Effects on Time-Dependent Nuclear Plant Unavailability with Changing Surveillance Interval

  • Tadatsugi Okazaki
  • Tunc Aldemir
Conference paper


Plant availability may decrease due to the aging of unrepairable or hard to replace components. A methodology is described to investigate the feasibility of reducing the surveillance intervals of repairable components to offset such a reduction in plant availability. The methodology is illustrated using the 2-train residual heat removal system of a pressurized water reactor.


Nuclear Power Plant System Availability Pressurize Water Reactor Plant Availability Nuclear Regulatory Commission 
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    M. Harunuzzaman, T. Aldemir. Optimal Preventive Maintenance of a Nuclear Power Plant Subsystem Using Dynamic Programming. Trans. Am. Nucl. Soc. 1988; 57: 99–100Google Scholar
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    Vora J.P. et al. Nuclear Plant Aging Research (NPRA) Program Plan, NUREG-1144. US Nuclear Regulatory Commission, Washington DC, 1991Google Scholar

Copyright information

© Springer-Verlag London 2004

Authors and Affiliations

  • Tadatsugi Okazaki
    • 1
  • Tunc Aldemir
    • 1
  1. 1.The Ohio State UniversityColumbusUSA

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