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One safety critical indicators model for regulatory actions on nuclear power plants based on a level 1 PSA; Um modelo de indicadores criticos de seguranca para acoes regulatorias em usinas nucleares baseado em uma APS nivel 1

Abstract

This study presents a general methodology to the establishment, selection and use of safety indicators for a two loop PWR plant, as Angra 1. The study performed identifies areas considered critical for the plant operational safety. For each of these areas, strategic sub-areas are defined. For each strategic sub-area, specific safety indicators are defined. These proposed Safety Indicators are based on the contribution to risk considering a quantitative risk analysis. For each safety indicator, a goal, a bounded interval and proper bases are developed, to allow for a clear and comprehensive individual behavior evaluation. Additionally, an integrated evaluation of the indicators, using expert systems, was done to obtain an overview of the plant general safety. This methodology can be used for identifying situations where the plant safety is challenged, by giving a general overview of the plant operational condition. Additionally, this study can also identify eventual room for improvements by generating suggestions and recommendations, as a complement for regulatory actions and inspections, focusing resources on eventual existing weaknesses, in order to increase or maintain a high pattern of operational safety. (author)
Publication Date:
Mar 15, 2006
Product Type:
Thesis/Dissertation
Report Number:
INIS-BR-4869
Resource Relation:
Other Information: TH: Thesis (Ph.D.); refs., 62 tabs., 8 figs., 30 graphs
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; ANGRA-1 REACTOR; COMPUTERIZED SIMULATION; EMERGENCY PLANS; EXPERIMENTAL DATA; EXPERT SYSTEMS; MONITORING; PHYSICAL PROTECTION; PROBABILITY; REACTOR OPERATION; REACTOR SAFETY; RECOMMENDATIONS; REGULATORY GUIDES; RELIABILITY; RISK ASSESSMENT; S CODES
OSTI ID:
21164003
Research Organizations:
Universidade Federal do Rio de Janeiro (UFRJ), RJ (Brazil). Coordenacao dos Programas de Pos-graduacao de Engenharia (COPPE)
Country of Origin:
Brazil
Language:
Portuguese
Other Identifying Numbers:
TRN: BR0947861040529
Availability:
Available from INIS in electronic form
Submitting Site:
BRN
Size:
158 pages
Announcement Date:
Jun 04, 2009

Citation Formats

Araujo, Jefferson Borges. One safety critical indicators model for regulatory actions on nuclear power plants based on a level 1 PSA; Um modelo de indicadores criticos de seguranca para acoes regulatorias em usinas nucleares baseado em uma APS nivel 1. Brazil: N. p., 2006. Web.
Araujo, Jefferson Borges. One safety critical indicators model for regulatory actions on nuclear power plants based on a level 1 PSA; Um modelo de indicadores criticos de seguranca para acoes regulatorias em usinas nucleares baseado em uma APS nivel 1. Brazil.
Araujo, Jefferson Borges. 2006. "One safety critical indicators model for regulatory actions on nuclear power plants based on a level 1 PSA; Um modelo de indicadores criticos de seguranca para acoes regulatorias em usinas nucleares baseado em uma APS nivel 1." Brazil.
@misc{etde_21164003,
title = {One safety critical indicators model for regulatory actions on nuclear power plants based on a level 1 PSA; Um modelo de indicadores criticos de seguranca para acoes regulatorias em usinas nucleares baseado em uma APS nivel 1}
author = {Araujo, Jefferson Borges}
abstractNote = {This study presents a general methodology to the establishment, selection and use of safety indicators for a two loop PWR plant, as Angra 1. The study performed identifies areas considered critical for the plant operational safety. For each of these areas, strategic sub-areas are defined. For each strategic sub-area, specific safety indicators are defined. These proposed Safety Indicators are based on the contribution to risk considering a quantitative risk analysis. For each safety indicator, a goal, a bounded interval and proper bases are developed, to allow for a clear and comprehensive individual behavior evaluation. Additionally, an integrated evaluation of the indicators, using expert systems, was done to obtain an overview of the plant general safety. This methodology can be used for identifying situations where the plant safety is challenged, by giving a general overview of the plant operational condition. Additionally, this study can also identify eventual room for improvements by generating suggestions and recommendations, as a complement for regulatory actions and inspections, focusing resources on eventual existing weaknesses, in order to increase or maintain a high pattern of operational safety. (author)}
place = {Brazil}
year = {2006}
month = {Mar}
}