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2 Journal of Polish Safety and Reliability Association

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Development of a Library Based Tool for Screening External Hazards and Hazard Combinations

Röwekamp M., Sperbeck S., Türschmann M.

Journal of Polish Safety and Reliability Association

2017

Vol. 8, No. 1

105--110

For a meaningful and efficient probabilistic risk analysis of external hazards and event combinations involving such hazards those hazards with significant risk potential need to be identified and considered for detailed anal-yses. Such a site and plant specific screening approach for external and internal hazards based on a hazards library covering all types of hazards is under development at GRS. The paper provides insights on the approach and first examples of application.

Probabilistic safety assessment of fire hazards

Türschmann M., Röwekamp M.

Journal of Polish Safety and Reliability Association

2016

Vol. 7, No. 1

225--232

An as far as possible exhaustive conceptual approach has been developed to systematically address all kinds of internal and external hazards and their potential combinations in Level 1 PSA in a comprehensive manner. The approach assumes a comprehensive generic compilation of hazards being available. By means of site-specific screening process it is decided which hazards need to be analysed in detail by means of probabilistic methods. The requested extension of the plant model is carried out by a systematic approach for those hazards to be analysed in detail. For this purpose, lists of hazard relevant structures, systems and components and their failure dependencies according to the hazards are derived. The comprehensive extension of Level 1 PSA by hazards is demonstrated at the example of plant internal fires.