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| GENU2008-1 | Reliability and safety
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| Durée : | 20h Th, 10h Pr |
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| Crédits/ECTS : |
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| Titulaire(s) : | André Poucet |
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| Langue : | Langue anglaise |
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| Aperçu général : |
- Introduction to nuclear safety: hazard sources, safety functions, safety systems, defence in depth, line of defence method
- Safety goals and risk based criteria: the concept of risk, individual and societal risk criteria, release limits, core damage frequency limit, safety goals at function or system level
- The safety design cycle (conservative) deterministic analysis based on design basis accidents and (best estimate) analysis of beyond design basis events; probabilistic
analysis as a review of the safety design;
- Overall process of probabilistic safety assessment (PSA): PSA level 1, 2 and 3
- Qualitative analysis: hazard and scenario identification methods (FMEA, HAZOP, Event trees..)
- Component reliability: basic RAMS concepts, failure and repair time distributions, estimation of parameters from real life data, uncertainty bounds, Bayesian estimation of parameters
- Systems reliability:
o Fault tree analysis: fault tree construction, coherence of fault trees, logical and probabilistic analysis of fault trees, system unavailability, expected number of failures, criticality of events and minimal cut sets,
o Markov analysis: state diagrams, transition matrices, determination of
system unavailability and system
- Common cause failure analysis: type of dependencies, qualitative and quantitative analysis of common cause failures
- Elements of human reliability analysis
- Accident sequence analysis: event trees, determination of sequence frequencies and plant response
- Elements of PSA level 2 and level 3 methodology
- Exploitation of PSA results
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| Objectif du cours : |
- To present elements of nuclear safety philosophy
- To present the approach for embedding safety in design of nuclear facilities and to perform safety analysis (both deterministic and probabilistic)
- To learn the basic notions and techniques of system reliability engineering
- To understand the fundamentals of probabilistic safety analysis (PSA).
- To be able to assess the overall quality of the PSA methodology.
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| Pré-requis : | REFERENCE BOOKS ON PREREQUISITE
See www.sckcen.be/bnen, (http://www.sckcen.be/bnen, Brochures and Info, Background books W. D'haeseleer) |
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| Organisation : |
- 1 t.m.
- Practical exercises: exercise on fault trees with ASTRA, Risk-Spectrum or Aralia-Simtree in SCK*CEN
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| Evaluation : | Two parts each counting for half of the quotation marks:
- A practical exercise to be prepared by the student covering the subject of reliability assessment and to be sent in to the teacher;
- An oral examination (open book) on the understanding of the concepts treated in the course
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| Contacts : | Baudouin Arien: baudoin.arien@sckcen.be |
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