Event
- Event ID
- 80
- Quality
- Description
- During transfer from a tank trailer to a stationary storage tank, a leak developed resulting in an unignited release.
[Zalosh and Short, 1978] - Event Initiating system
- Classification of the physical effects
- Unignited Hydrogen Release
- Nature of the consequences
- Leak No Ignition (No additional details provided)
- Macro-region
- North America
- Country
- United States
- Date
- Main component involved?
- Hose (Trailer)
- How was it involved?
- Leak & Formation Of A Flammable H2-Air Mixture
- Initiating cause
- Unknown
- Root causes
- Unknown (No additional details provided)
- Root CAUSE analysis
- Both INITIATING and ROOT CAUSES are unknown
Facility
- Application
- Hydrogen Transport And Distribution
- Sub-application
- CGH2 tube trailer
- Hydrogen supply chain stage
- Hydrogen Transport (No additional details provided)
- All components affected
- unknown
- Location type
- Open
- Location description
- Industrial Area
- Operational condition
- Description of the facility/unit/process/substances
- DESCRIPTION OF THE UNIT
This trailer unit consisted of 10 tubes.
The capacity data provided by the PHMSA source are not credible and re probably given in the wrong units
Emergency & Consequences
- Number of injured persons
- 0
- Number of fatalities
- 0
- Environmental damage
- 0
- Currency
- US$
- Property loss (onsite)
- 0
- Property loss (offsite)
- 0
Lesson Learnt
- Lesson Learnt
Zalosh et al (see references), concluded their analysis of hydrogen transportation accidents till 1978 with the following conclusions:
"Finally, an encouraging aspect of the transportation incident compilation is that 71% of the hydrogen releases did not lead to an ignition. ... The relatively few ignitions may be due to either to lack of ignition sources or to the rapid dispersal of hydrogen into the atmosphere. In any event, the accident data provide further incentive t o transport , transfer and store hydrogen outdoors away from occupied areas."
Event Nature
- Release type
- gas
- Involved substances (% vol)
- H2 100%
- Presumed ignition source
- No ignition
References
- Reference & weblink
Extract from Table III of Appendix A of Zalosh and Short<br />
COMPARATIVE ANALYSIS OF HYDROGEN FIRE AND EXPLOSION INCIDENTS<br />
Quarterly Report No. 2 for Period December 1, 1977 - February 28, 1978<br />
https://www.osti.gov/biblio/6566131<br />
(accessed September 2020)
JRC assessment
- Sources categories
- Zalosh
