Configuration of Risk Monitor System by PLant Defense-In.Depth Monitor and Relability Monitor

Hidekazu Yoshikawa, Morten Lind, Ming Yang, Muhammad Hashim, Zhijian Zhang

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    Abstract

    A new method of risk monitor system of a nuclear power plant has been proposed from the aspect by what degree of safety functions incorporated in the plant system is maintained by multiple barriers of defense-in-depth (DiD). Wherein, the central idea is plant DiD risk monitor and reliability monitor derived from the four aspects of (i) design principle of nuclear safety to realize DiD concept, (ii) definition of risk and risk to be monitored, (iii) severe accident phenomena as major risk, (iv) scheme of risk ranking, and (v) dynamic risk display. In this paper, the overall frame of the proposed frame on risk monitor system is summarized and the detailed discussion is made on the definitions of major terminologies of risk, risk ranking, anatomy of fault occurrence,
    two-layer configuration of risk monitor, how to configure individual elements of plant DiD risk monitor and its example application for PWR safety system.
    Original languageEnglish
    Title of host publicationProceedings of the 8th International Topical Meeting on Nuclear Plant Instrumentation, Control and Human Machine Interface Technologies
    Number of pages12
    Publication date2012
    Publication statusPublished - 2012
    Event8th International Topical Meeting on Nuclear Plant Instrumentation, Control and Human Machine Interface Technologies - Westin San Diego, San Diego, California, United States
    Duration: 22 Jul 201226 Jul 2012

    Conference

    Conference8th International Topical Meeting on Nuclear Plant Instrumentation, Control and Human Machine Interface Technologies
    LocationWestin San Diego
    Country/TerritoryUnited States
    CitySan Diego, California
    Period22/07/201226/07/2012

    Bibliographical note

    Eight American Nuclear Society International Topical Meeting on Nuclear PLant Instrumentation, Control and Human-Machine INterface Technologies, July, San Diego, California.

    Keywords

    • Risk monitor
    • Plant DiD risk monitor
    • Reliability monitor
    • Risk ranking
    • PWR safety system

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