Simulation-based safety investigation of a hydrogen fueling station with an on-site hydrogen production system involving methylcyclohexane

Jo Nakayama, Hitoshi Misono, Junji Sakamoto, Naoya Kasai, Tadahiro Shibutani, Atsumi Miyake

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Adequate safety measures are crucial for preventing major accidents at hydrogen fueling stations. In particular, risk analysis of the domino effect at hydrogen fueling stations is essential because knock-on accidents are likely to intensify the consequences of a relatively small incident. Several risk assessment studies have focused on hydrogen fueling stations, but none have investigated accidental scenarios related to the domino effect at such stations. Therefore, the purpose of this study is to identify a domino effect scenario, analyze the scenario by using simulations and propose safety measures for preventing and mitigating of the scenario. In this hazard identification study, we identified the domino effect scenario of a hydrogen fueling station with an on-site hydrogen production system involving methylcyclohexane and investigated through simulations of the scenario. The simulations revealed that a pool fire of methylcyclohexane or toluene can damage the process equipment and that thermal radiation may cause the pressurized hydrogen tanks to rupture. The rupture-type vent system can serve as a critical safety measure for preventing and mitigating the examined scenario.

Original languageEnglish
Pages (from-to)10636-10644
Number of pages9
JournalInternational Journal of Hydrogen Energy
Volume42
Issue number15
DOIs
Publication statusPublished - Apr 13 2017
Externally publishedYes

Keywords

  • Domino effect
  • Hydrogen fueling station
  • Pool fire
  • Rupture-type safety valve

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

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