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Clean Hydrogen Partnership

Explosion in the alternator of a power plant

Event

Event ID
275
Quality
Description

Fire in bulk hydrogen storage compound. Pressure gauge shut off valve spindle blown out (could be completely unscrewed and removed). The subsequent leak ignited by unknown source. No injuries sustained by personnel. Fire extinguished by station staff.

Event Initiating system
Classification of the physical effects
Hydrogen Release and Ignition
Nature of the consequences
Macro-region
Europe
Country
European Union
Date
Component involved
valve (shut-off)
Failure mode
leak & ignition
Initiating cause
unknown
Root CAUSE analysis

INITIATING cause was the blown off of the pressure gauge shut off valve spindle.
The subsequent leak ignited by unknown source.
Nothing can be said on the root cause

Root causes
Unknown
Date entry in HIAD
28/02/2009

Facility

Application
Hydrogen stationary storage
Sub-application
GH2 storage
Hydrogen supply chain stage
All components affected

Pressure gauge valve

Process temperature range [C]
ambient temperature (-50°C to +50°C)
Process pressure range [MPa]
medium to high pressure (10 to 50 MPa)
Location type
Unknown
Location
unknown
Operational condition

Emergency & Consequences

Number of fatalities
0
Number of injured persons
0
Emergency action

Station staff extinguished fire.

In-depth data

Release type
gas
Involved substances (% vol)
H2 100%
Release temperature [°C]
25
Probable IGNITION SOURCE
Explosion type

References

Sources categories
HSE
Reference & weblink

Event description provided by HSE, original source confidential