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Clean Hydrogen Partnership

Event

Event ID
31
Quality
Description
This incident consisted in the dropping of a gas cylinder and the release of its content due to stress corrosion
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
Netherlands
Date
Main component involved?
Cgh2 Cylinder(S)
How was it involved?
Leak & Formation Of A Flammable H2-Air Mixture
Initiating cause
Impact, Rollover, Crash
Root causes
Root CAUSE analysis
The INITIATING CAUSE was the accidental dropping of a CGH2 cylinders.

A CONTRIBUTING FACTOR is attributed by this very brief report to the degradation of the load-bearing capacity of the cylinder due to stress corrosion. Although not mentioned, it would be plausible to assume that this degradation was hydrogen-assisted.

The ROOT CAUSE could be a combination of a human error causing the dropping and lack of inspection on the integrity of the cylinder. Since the conditions under which the cylinder was transported are unknown, it is impossible to drawn conclusion on the contribution of job-related factors.

Facility

Application
Hydrogen Stationary Storage
Sub-application
unspecified
Hydrogen supply chain stage
All components affected
gas cylinder
Location type
Semiconfined
Operational condition

Emergency & Consequences

Number of injured persons
2
Number of fatalities
0
Post-event summary
The hydrogen released did not ignited, but injuries occurred because of flying debris caused by the internal pressure.

Event Nature

Release type
gas
Involved substances (% vol)
H2 100%
Presumed ignition source
No ignition

References

Reference & weblink

M. Kreiser, G. Fröhlich, H. Eichert, A.Schatz, <br />
IKE Universität Stuttgart ISSN 0173-6892, April 1994<br />
Analyse von Störfällen mit Wasserstoff in bisherigen Anwendungsbereichen mit besonderer Berücksichtigung von LH2"

Bockholts and Koehorst, 1992

JRC assessment