Application of the integrated safety assessment methodology to safety margins. Dynamic event trees, damage domains and risk assessment

L Ibánez, J Hortal, C Queral, J Gómez-Magán… - Reliability Engineering & …, 2016 - Elsevier
Abstract The Integrated Safety Assessment (ISA) methodology, developed by the Consejo
de Seguridad Nuclear, has been applied to an analysis of Zion NPP for sequences with …

Dynamic event trees without success criteria for full spectrum LOCA sequences applying the integrated safety assessment (ISA) methodology

C Queral, J Gómez-Magán, C París… - Reliability Engineering & …, 2018 - Elsevier
The integrated safety assessment (ISA) methodology, developed by the Spanish nuclear
safety council (CSN), has been applied to the analysis of full spectrum loss of coolant …

Effectiveness of the debris bed self-leveling under severe accident conditions

S Basso, A Konovalenko, P Kudinov - Annals of Nuclear Energy, 2016 - Elsevier
Melt fragmentation, quenching and long term coolability in a deep pool of water under the
reactor vessel are employed as a severe accident mitigation strategy in several designs of …

Failure domain analysis and uncertainty quantification using surrogate models for steam explosion in a Nordic type BWR

D Grishchenko, S Galushin, P Kudinov - Nuclear Engineering and Design, 2019 - Elsevier
Sever accident mitigation strategy adopted in Nordic Boiling Water Reactors (BWRs)
employs a deep water pool below the reactor vessel to fragment and quench core melt and …

Prediction of in-vessel debris bed properties in BWR severe accident scenarios using MELCOR and neural networks

VA Phung, D Grishchenko, S Galushin… - Annals of Nuclear …, 2018 - Elsevier
Severe accident management strategy in Nordic boiling water reactors (BWRs) employs ex-
vessel corium debris coolability. In-vessel core degradation and relocation provide initial …

Characteristics of debris in the lower head of a BWR in different severe accident scenarios

VA Phung, S Galushin, S Raub, A Goronovski… - … Engineering and Design, 2016 - Elsevier
Nordic boiling water reactors (BWRs) adopt ex-vessel debris cooling to terminate severe
accident progression. Core melt released from the vessel into a deep pool of water is …

[PDF][PDF] Comparison of MELCOR and MAAP calculations of core relocation phenomena in Nordic BWR´ s

A Tuvelid - 2016 - diva-portal.org
Since the crisis in Fukushima, severe accident progression during a station blackout (SBO)
accident is recognized as a very important area for accident management and emergency …

Development of risk oriented accident analysis methodology (ROAAM+) for assessment of ex-vessel severe accident management effectiveness

P Kudinov, S Galushin, D Grishchenko… - 18th International Topical …, 2019 - elibrary.ru
In this work we present results of development and application of Risk Oriented Accident
Analysis framework (ROAAM+) to assessment of effectiveness of ex-vessel severe accident …

Input Calibration, Code Validation and Surrogate Model Development for Analysis of Two-phase Circulation Instability and Core Relocation Phenomena

VA Phung - 2017 - diva-portal.org
Code validation and uncertainty quantification are important tasks in nuclear reactor safety
analysis. Code users have to deal with large number of uncertain parameters, complex multi …