Development and assessment of fire-related risk unavailability matrices to support the application of the maintenance rule in a PWR nuclear power plant
| Autor: | Alfredo de Blas, Enric Estruch, Carlos Tapia, Matthew Asamoah, Pedro Diaz, J. Dies |
|---|---|
| Přispěvatelé: | Universitat Politècnica de Catalunya. Departament de Física, Universitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear, Universitat Politècnica de Catalunya. NERG - Grup de Recerca d'Enginyeria Nuclear |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Nuclear and High Energy Physics
Computer science 020209 energy 02 engineering and technology Fire prevention 01 natural sciences 010305 fluids & plasmas law.invention Nuclear power plants--Safety measures Incendis -- Prevenció PSA Centrals nuclears -- Mesures de seguretat law risk management action 0103 physical sciences Nuclear power plant Fire protection 0202 electrical engineering electronic engineering information engineering Fire safety analysis maintenance rule Centrals nuclears -- Accidents -- Prevenció Risk management reliability business.industry Energies::Energia nuclear::Seguretat nuclear [Àrees temàtiques de la UPC] Probabilistic logic core damage frequency fire protection systems Reliability engineering key safety functions Monte Carlo method PWR type reactor Systems analysis Nuclear Energy and Engineering Core damage frequency Unavailability Risk assessment business Nuclear power plants--Accidents--Prevention |
| Zdroj: | UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) Recercat. Dipósit de la Recerca de Catalunya instname |
| DOI: | 10.1080/00223131.2016.1193066 |
| Popis: | Two methods are presented which serve to incorporate the fire-related risk into the current practices in nuclear power plants with respect to the assessment of configurations. The development of these methods is restricted to the compulsory use of fire probabilistic safety assessment (PSA) models. The first method is a fire protection systems and key safety functions unavailability matrix which is developed to identify structures, systems, and components significant for fire-related risk. The second method is a fire zones and key safety functions (KSFs) fire risk matrix which is useful to identify fire zones which are candidates for risk management actions. Specific selection and quantification methodologies have been developed to obtain the matrices. The Monte Carlo method has been used to assess the uncertainty of the unavailability matrix. The analysis shows that the uncertainty is sufficiently bounded. The significant fire-related risk is localized in six KSF representative components and one fire protection system which should be included in the maintenance rule. The unavailability of fire protection systems does not significantly affect the risk. The fire risk matrix identifies the fire zones that contribute the most to the fire-related risk. These zones belong to the control building and electric penetrations building. |
| Databáze: | OpenAIRE |
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