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Clean Hydrogen Partnership

Leak from a tube trailer during filling

Event

Event ID
1214
Quality
Description
During the filling of a hydrogen tube trailer, a hissing sound alerted the staff at an industrial gas manufacturing plant to a leak.
The pressure in the tube trailer being filled was close to 200 bar. During the verification process, the operator heard a leak at a valve on a tube at the rear of the trailer.
He took the first safety measures by immediately closing all the valves of the tube trailer. The neighbouring filling stations were also shut down, and the area was secured.
A safety perimeter of 20 meters was established around the loading area. The tube trailer was then purged with inert gas, and corrective maintenance was carried out.
Event Initiating system
Classification of the physical effects
Unignited Hydrogen Release
Nature of the consequences
Leak No Ignition (No additional details provided)
Macro-region
Europe
Country
France
Date
Main component involved?
Valve (Generic)
How was it involved?
Rupture
Initiating cause
Material Degradation (Generic)
Root causes
Unknown (No additional details provided)
Root CAUSE analysis
The INITIATING CAUSE was a leak on an unspecified valve or joints when approaching the target filling value of 200 bar.
The ROOT CAUSE is unknown.

Facility

Application
Hydrogen Transport And Distribution
Sub-application
CGH2 tube trailer
Hydrogen supply chain stage
Hydrogen Transfer (No additional details provided)
All components affected
hose
Location type
Open
Location description
Industrial Area
Operational condition
Pre-event occurrences
The leak occured at the end of the operations of filling a tube trailer

Emergency & Consequences

Number of injured persons
0
Number of fatalities
0
Environmental damage
0
Property loss (onsite)
0
Post-event summary
No injury, property loss or environmental impact.

Event Nature

Release type
gas
Involved substances (% vol)
H2 100%
Release duration
unknown
Actual pressure (MPa)
20
Design pressure (MPa)
20
Presumed ignition source
No ignition

References

Reference & weblink

Event no.61993 of the French database ARIA <br />
https://www.aria.developpement-durable.gouv.fr/accident/61993/<br />
(accessed December 2024)

JRC assessment