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|Title:||Severe Accident Context Quantification for Long-Term Station Blackout in Boiling Water Reactor Nuclear Power Plants|
|Authors:||PETKOV GUEORGUI; VELA GARCIA MONICA|
|Publisher:||American Society of Mechanical Engineers|
|Type:||Articles in periodicals and books|
|Abstract:||The realistic study of dynamic accident context is an invaluable tool to address the uncertainties and their impact on safety assessment and management. The capacities of the Performance Evaluation of Teamwork (PET) procedure for dynamic context quantification and determination of alternatives, coordination and monitoring of human performance and decision-making are discussed in this paper. The procedure is based on a thorough description of symptoms during the accident scenario progressions (timelines) with the use of thermo-hydraulic model and severe accident codes (MELCOR and MAAP). The opportunities of PET procedure for context quantification are exemplified for the long-term station blackout (LT SBO) accident scenario at Fukushima Daiichi NPP#1 and an hypothetic unmitigated LT SBO at Peach Bottom #1 Boiling Water Reactor Nuclear Power Plants. The context quantification of these LT SBO scenarios is based on the IAEA Fukushima Daiichi accident report, "State-of-the-Art Reactor Consequence Analysis" and thermo-hydraulic calculations made by using MAAP code at the EC Joint Research Centre.|
|JRC Directorate:||Nuclear Safety and Security|
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