Event
- Event ID
- 261
- Quality
- Description
While driving on a highway, the driver of a CGH2 tube trailer was notified by another driver of the smoke coming from his trailer. The CGH2 tube trailer parked in a place considered safe, inspected the trailer and found the sides hot. After having called the emergency services, he unhooked the tractor from the trailer and moved the tractor away from the trailer. At this time, the first police officer arrived. The hazmat contractor in charge of the clean up arrived more than 3 hours later. Throughout all this time, it is assumed that the fire continued, but the report mentions only the contamination of the ground due to the exposure of the steel containment floor of the trailer to the fire. The trailer was disposed, probably because very damaged. No cause reported.
- Event Initiating system
- Classification of the physical effects
- Hydrogen Release and Ignition
- Nature of the consequences
- fire
- Macro-region
- North America
- Country
- United States
- Date
- Component involved
- valve (generic)
- Failure mode
- leak & ignition
- Initiating cause
- unknown
- Root causes
- Unknown
- Date entry in HIAD
- 25/10/2024
Facility
- Application
- Hydrogen transport and distribution
- Sub-application
- CGH2 tube trailer
- Hydrogen supply chain stage
- All components affected
unknown
- Process temperature range [C]
- ambient temperature (-50°C to +50°C)
- Process pressure range [MPa]
- medium to high pressure (10 to 50 MPa)
- Location type
- Open
- Location
- highway or similar
- Operational condition
- Description of the facility/unit/process/substances
The nominal pressure is not povided. Nevertheless, from the website of the trailer manufacturer, it can be assumed that the trailer was carrying type I steel tubes wtih a nominal pressure of 180 bar
Emergency & Consequences
- Number of fatalities
- 0
- Number of injured persons
- 0
- Currency
- US$
- Property loss (onsite)
- 714.000
In-depth data
- Release type
- gas
- Involved substances (% vol)
- H2 100%
- Release temperature [°C]
- 25
- Release pressure [MPa]
- 18
- Probable IGNITION SOURCE
References
- Sources categories
- PHMSA
- Reference & weblink
Incident I-1997110950 of the US Pipeline and Hazardous Materials Safety Administration PHMSA (multiple reports because of more gases, but no pdf report):
https://portal.phmsa.dot.gov/analytics/saw.dll?Portalpages&PortalPath=%…
(accessed September 2024)
