Risk assessment methodology for onboard hydrogen storage

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

A quantitative risk assessment of onboard hydrogen-powered vehicle storage, exposed to a fire, is performed. The risk is defined twofold as a cost of human life per vehicle fire, and annual fatality rate per vehicle. The increase of fire resistance rating of the storage tank is demonstrated to drastically reduce the risk to acceptable level. Hazard distances are calculated by validated engineering tools for blast wave and fireball, which follow catastrophic tank rupture in a fire, act in all directions and have larger hazard distances compared to jet fire. The fatality cash value, probabilities of vehicle fire and failure of thermally activated pressure relief device are taken from published sources. A vulnerability probit function is employed to calculate probability of emergency operations’ failure to control fire and prevent tank rupture. The risk is presented as a function of fire resistance rating of onboard storage.
Original languageEnglish
Pages (from-to)6462-6475
JournalInternational Journal of Hydrogen Energy
Volume43
Issue number12
Early online date2 Mar 2018
DOIs
Publication statusE-pub ahead of print - 2 Mar 2018

Keywords

  • hydrogen safety
  • quantitative risk assessment
  • onboard hydrogen storage
  • blast wave and fireball
  • fire resistance rating
  • socio-economics

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