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 (No additional details provided)
- Macro-region
- Europe
- Country
- Germany
- Date
- Main component involved?
- Cgh2 Vessel
- How was it involved?
- Rupture & Formation Of A Flammable H2-Hc-Air Mixture
- Initiating cause
- H2-Driven Material Degradation
- Root causes
- Root CAUSE analysis
- The INITIATING CAUSE was hydrogen-assisted stress corrosion.
ROOT CAUSE is not given, but a inadequate design is suspected.
Facility
- Application
- Hydrogen Stationary Storage
- Sub-application
- unspecified
- Hydrogen supply chain stage
- All components affected
- compressed gas spherical vessel
- Location type
- Unknown
- Location description
- Industrial Area
- Operational condition
Emergency & Consequences
- Number of injured persons
- 0
- Number of fatalities
- 0
- Emergency action
- As emergency response to the event, the plant was shut down, electrical supply was cut and loading/unloading operations were stopped. The internal emergency plan operated correctly.
Event Nature
- Release type
- gas mixture
- Involved substances (% vol)
- H2 54%
CH4 46% - Presumed ignition source
- No ignition
References
- 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
JRC assessment
- Sources categories
- Scientific article
