Alessandro Tugnoli
University of Bologna
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Publication
Featured researches published by Alessandro Tugnoli.
Reliability Engineering & System Safety | 2015
Gabriele Landucci; Francesca Argenti; Alessandro Tugnoli; Valerio Cozzani
The evolution of domino scenarios triggered by fire critically depends on the presence and the performance of safety barriers that may have the potential to prevent escalation, delaying or avoiding the heat-up of secondary targets. The aim of the present study is the quantitative assessment of safety barrier performance in preventing the escalation of fired domino scenarios. A LOPA (layer of protection analysis) based methodology, aimed at the definition and quantification of safety barrier performance in the prevention of escalation was developed. Data on the more common types of safety barriers were obtained in order to characterize the effectiveness and probability of failure on demand of relevant safety barriers. The methodology was exemplified with a case study. The results obtained define a procedure for the estimation of safety barrier performance in the prevention of fire escalation in domino scenarios.
Reliability Engineering & System Safety | 2015
Nicola Paltrinieri; Alessandro Tugnoli; Valerio Cozzani
Emerging risks may arise from process intensification and new scenarios due to the innovative technologies and higher potentialities of new LNG regasification facilities. In the conventional hazard identification process it is difficult to include new scenarios related to innovative technologies or facilities, for which limited or no operational experience is available. In the present study, a new technique for HAZard IDentification (HAZID), named Dynamic Procedure for Atypical Scenarios Identification (DyPASI), was applied to identify atypical accident scenarios in LNG terminals. The technique aims to make easier and more systematic the process of learning from early warnings and identify atypical accident scenarios otherwise disregarded by common HAZID techniques. The comparison with a survey of the accident scenarios typically considered in available Environmental Impact Assessment (EIA) studies evidences that DyPASI is a valuable tool to obtain a complete and updated overview of potential hazards in particular for new or innovative technologies, where limited operational experience is available.
Journal of Hazardous Materials | 2014
Alessandro Tugnoli; Gianfilippo Gubinelli; Gabriele Landucci; Valerio Cozzani
The evaluation of the initial direction and velocity of the fragments generated in the fragmentation of a vessel due to internal pressure is an important information in the assessment of damage caused by fragments, in particular within the quantitative risk assessment (QRA) of chemical and process plants. In the present study an approach is proposed to the identification and validation of probability density functions (pdfs) for the initial direction of the fragments. A detailed review of a large number of past accidents provided the background information for the validation procedure. A specific method was developed for the validation of the proposed pdfs. Validated pdfs were obtained for both the vertical and horizontal angles of projection and for the initial velocity of the fragments.
Fuel | 2014
Lucia Basile; Alessandro Tugnoli; Carlo Stramigioli; Valerio Cozzani
Journal of Loss Prevention in The Process Industries | 2014
Alessandro Tugnoli; Maria Francesca Milazzo; Gabriele Landucci; Valerio Cozzani; Giuseppe Maschio
Aiche Journal | 2014
Arianna D'Aulisa; Alessandro Tugnoli; Valerio Cozzani; Gabriele Landucci; A. M. Birk
Chemical engineering transactions | 2014
E. Mariotti; A. Di Padova; Tiziana Barbaresi; Fabrizio Tallone; Alessandro Tugnoli; Gigliola Spadoni; Valerio Cozzani
Chemical engineering transactions | 2015
Lucia Basile; Alessandro Tugnoli; Valerio Cozzani
Chemical engineering transactions | 2015
R. Moricone; Alessandro Tugnoli
25th European Safety and Reliability Conference, ESREL 2015 | 2015
Gabriele Landucci; Francesca Argenti; Alessandro Tugnoli; Valerio Cozzani