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Development of Lifetime Evaluation and Management Technologies for Nuclear Power Plants

원자력발전소 수명평가 및 수명관리 기술개발

  • 진태은 (한국전력기술(주) 기계기술처)
  • Published : 2009.10.01

Abstract

Operating experience of the various components in the nuclear power plants has shown that a variety of degradation mechanisms can occur during operation. Therefore, the accurate lifetime evaluation and systematic management are very important for the safe as well as the economical operation of the nuclear power plants. In this paper, the characteristics of a total of 17 degradation mechanisms were reviewed and the plausible degradation mechanisms such as stress corrosion cracking, fatigue, irradiation embrittlement, and so on, were identified. Also, the lifetime evaluation technologies which have been developed for the application to the domestic nuclear power plants are described. In addition, a total of 48 aging management programs which have been established for the safe operation of the various components are explained.

Keywords

Degradation Mechanism;Fatigue;Stress Corrosion Cracking;Irradation Embrittlement;Flow Accelerated Corrosion

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