A research on the release method of hydrogen gas by PRD activation in the case of FCV fire

Kazuo Matsushima, Toshiya Hirose, Michiaki Serine, Tetsuo Taniguchi

Research output: Contribution to journalArticlepeer-review


It is mandatory to apply a pressure relief device (PRD) on the Fuel cell vehicles to avoid explosion of high pressure hydrogen gas container when a vehicle explore to be on fire. Several hydrogen release tests were carried out to understand how the released hydrogen behaves in a vehicle fire. These tests are to analyze the release way of PRD as below. 1) The range of flame, flame temperature and the time of release when PRD effused hydrogen gas in upward direction, in downward direction, and in horizontal direction respectively. 2) The diffusion way of released hydrogen gas. 3) The effect of diffusion box which was assumed to decrease the hydrogen concentration and flow rate. The results showed that it should be avoided to release directly hydrogen gas into the air in the horizontal direction.

Original languageEnglish
Pages (from-to)535-537
Number of pages3
JournalNihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Issue number751
Publication statusPublished - 2009 Mar
Externally publishedYes


  • Fuel Cell
  • Hydrogen Flame
  • Hydrogen Gas
  • Hydrogen Release
  • Regulation
  • Vehicle Fire/Fire Safety

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering


Dive into the research topics of 'A research on the release method of hydrogen gas by PRD activation in the case of FCV fire'. Together they form a unique fingerprint.

Cite this