Event
- Event ID
- 280
- Quality
- Description
Ejection of rotor wedge material lead to vibration induced failure of components, including hydrogen seals. Serious fire resulted from hydrogen leakage, which subsequently lead to an oil fire. Ignition from metal to metal contact between fractured components.
- Event Initiating system
- Classification of the physical effects
- Hydrogen Release and Ignition
- Nature of the consequences
- fire
- Macro-region
- Europe
- Country
- United Kingdom
- Date
- Component involved
- H2 coolant system (rotating seal)
- Failure mode
- leak & ignition
- Initiating cause
- conventional component failure (turbine-generator)
- Root causes
- Unknown
- Date entry in HIAD
- 28/02/2009
Facility
- Application
- Power plant
- Sub-application
- unspecified power plant
- Hydrogen supply chain stage
- All components affected
turbine, generator, cooling system
- Process temperature range [C]
- Above ambient temperature (50°C to 100°C)
- Location type
- Unknown
- Location
- unknown
- Operational condition
Emergency & Consequences
- Number of fatalities
- 0
- Number of injured persons
- 2
In-depth data
- Release type
- gas
- Involved substances (% vol)
- H2 100%
- Release temperature [°C]
- 25
- Probable IGNITION SOURCE
References
- Sources categories
- HSE
- Reference & weblink
Event description provided by HSE, original source confidential
