Technical Approach to Probabilistic Safety Assessment for Multiple Reactor Units
Author | : International Atomic Energy Agency |
Publisher | : International Atomic Energy Agency |
Total Pages | : 171 |
Release | : 2019-07-23 |
Genre | : Technology & Engineering |
ISBN | : 9789201026187 |
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The technical approach described in this publication builds on the use of a single unit probabilistic safety assessment (PSA) and identifies considerations that are needed from the multi-unit perspective. This is the first attempt to expand the current PSA process to take account of multi-unit issues, and has been done by distilling lessons learned from the Fukushima Daiichi accident and other multi-unit events, and by reviewing previous PSAs and supporting research that have addressed the risks of multi-unit accidents. The publication provides a roadmap and methodology for performing a multi-unit PSA, proposes a set of site level risk metrics, and presents examples of approaches to resolve specific issues.