Event
- Event ID
- 26
- Quality
- Description
A compressed gas spherical vessel failed along the along the weld, releasing the whole content, consisting in a H2-CH4-rich mixture (54%, 26%). The cause was stress corrosion accelerated by hydrogen.
- Event Initiating system
- Classification of the physical effects
- Unignited Hydrogen Release
- Nature of the consequences
- leak no ignition
- Macro-region
- Europe
- Country
- Germany
- Date
- Component involved
- CGH2 tank (stationary)
- Failure mode
- rupture, no ignition
- Initiating cause
- H2-driven material degradation
- Root CAUSE analysis
The INITIATING CAUSE was hydrogen-assisted stress corrosion.
ROOT CAUSE is not given, but a inadequate design is suspected.- Root causes
- Date entry in HIAD
- 28/02/2009
Facility
- Application
- Hydrogen stationary storage
- Sub-application
- GH2 storage
- Hydrogen supply chain stage
- All components affected
compressed gas spherical vessel
- Process temperature range [C]
- ambient temperature (-50°C to +50°C)
- Process pressure range [MPa]
- unknown
- Location type
- Unknown
- Location
- industrial area
- Operational condition
Emergency & Consequences
- Number of fatalities
- 0
- Number of injured persons
- 0
In-depth data
- Release type
- gas mixture
- Involved substances (% vol)
- H2 54%
CH4 46% - Release temperature [°C]
- 25
- Probable IGNITION SOURCE
References
- Sources categories
- Scientific article
- Reference & weblink
Kier and Müller, 1983; A.M. Kreiser, G. Fröhlich, H. Eichert, A.Schatz, IKE Universität Stuttgart ISSN 0173-6892, April 1994Analyse von Störfällen mit Wasserstoff in bisherigen Anwendungsbereichen mit besonderer Berücksichtigung von LH2
