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Tesi etd-06172012-212551


Tipo di tesi
Tesi di laurea specialistica
Autore
ARGENTI, FRANCESCA
URN
etd-06172012-212551
Titolo
Probabilistic assessment of fired domino effect escalation by the analysis of safety barriers (Analisi probabilistica dell'effetto domino da incendio e valutazione dell'efficacia dei sistemi di protezione)
Struttura
INGEGNERIA
Corso di studi
INGEGNERIA CHIMICA
Commissione
relatore Prof. Nicolella, Cristiano
relatore Dott. Landucci, Gabriele
controrelatore Prof. Tognotti, Leonardo
Parole chiave
  • efficacia
  • affidabilità
  • analisi probabilistica
  • effetto domino
  • propagazione
  • incendio
Data inizio appello
19/07/2012;
Disponibilità
parziale
Data di rilascio
2052-07-19
Riassunto analitico
A methodology for the probabilistic assessment of fired domino escalation through the analysis of safety barriers is presented. The identification and characterization of fire protection systems typically installed in refinery tank farms, LPG storage facilities and offshore installations was carried out. The performances of active, passive and procedural measures for fire protection were evaluated in terms of availability, effectiveness and response time and assessed through a LOPA approach. Vulnerability functions were developed for the characterization of target equipment behavior and for the evaluation of the time to failure. A modified escalation probability was defined to consider the influence of mitigation barriers on fire attack and target resistance. The application of the methodology to two case-studies allowed the estimation of the frequency of mitigated domino scenarios triggered by fire and the residual frequency of non-mitigated domino scenarios.
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