Title: Probabilistic and Deterministic Safety Assessment Quantification Methods
Authors: CONTRI PaoloRODIONOV Andriy
Publisher: Woodhead Publishing
Publication Year: 2010
JRC N°: JRC50672
ISBN: 978-1-84569-511-8
URI: www.woodheadpublishing.com
Type: Articles in periodicals and books
Abstract: This chapter addresses safety assessment methods in relation to ageing effects. After a short summary with definitions and framework, a reference Plant Life Management (PLIM) model is discussed, as background for a detailed analysis of the main issues related to a Probabilistic Safety Assessment (PSA) where time dependent, ageing effects are considered. The relevant safety issues are also discussed: the evaluation of time dependent component reliabilities give a chance to the whole PSA to support periodic safety assessment of the plant, informing operational decisions on optimised maintenance, in-service inspections, changes in operational limits and conditions and component replacement. The chapter presents the different PSA phases through case studies where ageing considerations have a strong impact, such as: selection of SSCs to be considered, reliability and data analysis for active components and incorporation of age-dependent reliability parameters and data into PSA models.
JRC Directorate:Energy, Transport and Climate

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