A novel consequence-based approach was applied to the inherent safety assessment of the envisaged hydrogen production, distribution and utilisation systems, in the perspective of the widespread hydrogen utilisation as a vehicle fuel. Alternative scenarios were assessed for the hydrogen system chain from large scale production to final utilisation. Hydrogen transportation and delivery was included in the analysis. The inherent safety fingerprint of each system was quantified by a set of KPIs (key performance indicators). Rules for KPIs aggregation were considered for the overall assessment of the system chains. The final utilisation stage resulted by large the more important for the overall expected safety performance of the system. Thus, comparison was carried out with technologies proposed for the use of other low emission fuels, as LPG (liquefied petroleum gas) and natural gas. The hazards of compressed hydrogen-fuelled vehicles resulted comparable, while reference innovative hydrogen technologies evidenced a potentially higher safety performance. Thus, switching to the inherently safer technologies currently under development may play an important role in the safety enhancement of hydrogen vehicles, resulting in a relevant improvement of the overall safety performance of the entire hydrogen system.
Safety assessment of envisaged systems for automotive hydrogen supply and utilization
International Journal of Hydrogen Energy ; 35 , 3 ; 1493-1505
2010
13 Seiten, 7 Bilder, 7 Tabellen, 40 Quellen
Aufsatz (Zeitschrift)
Englisch
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