Event
- Event ID
- 1122
- Quality
- Description
- A LH2 trailer was delivering liquid hydrogen to a customer. Once finished the delivery, the driver noticed a leak on the piping between the trailer and vent valve inside the side cabinet. The trailer was stabilised and returned to origin for repair.
- 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?
- Piping (Trailer)
- How was it involved?
- Leak & Formation Of A Flammable H2-Air Mixture
- Initiating cause
- Material Degradation (Generic)
- Root causes
- Unknown (No additional details provided)
- Root CAUSE analysis
- The INITIAL CAUSE was a leak on the connection between the trailer (tank) and the vent line.
The ROOT CAUSE is related to ageing or another form of degradation of the pipe. However, it is not to known if this was related to lack of maintenance, ill-choice of materials, or to a previous event causing mechanical damage.
Facility
- Application
- Hydrogen Transport And Distribution
- Sub-application
- LH2 tanker
- Hydrogen supply chain stage
- Hydrogen Transport (No additional details provided)
- All components affected
- pipe
- Location type
- Open
- Operational condition
- Pre-event occurrences
- The drive had just terminated the LH2 transfer from the trailer to the stationary tank.
Emergency & Consequences
- Number of injured persons
- 0
- Number of fatalities
- 0
- Environmental damage
- 0
- Currency
- US$
- Property loss (onsite)
- 0
- Property loss (offsite)
- 0
- Post-event summary
- No injury, only a loss of hydrogen (21 kg)
Event Nature
- Release type
- gas
- Involved substances (% vol)
- H2 100%
- Released amount
- 21.453444360333
- Presumed ignition source
- No ignition
References
- Reference & weblink
Incident E-2011050327 of the US Pipeline and Hazardous Materials Safety Administration PHMSA: <br />
https://portal.phmsa.dot.gov/analytics/saw.dll?Portalpages&PortalPath=%… />
(accessed September 2024)
JRC assessment
- Sources categories
- PHMSA
