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Clean Hydrogen Partnership

Explosion during hydrogen transfer

Event

Event ID
274
Quality
Description

Hydrogen leak occurred from temporary pipe work during transfer of hydrogen between permanent and emergency cylinders. Ignition source unknown. Resultant explosion caused serious burns to one employee and fire damage to the area local to the explosion.

Event Initiating system
Classification of the physical effects
Hydrogen Release and Ignition
Nature of the consequences
Macro-region
Europe
Country
United Kingdom
Date
Component involved
piping (generic)
Failure mode
internal leak
Initiating cause
unknown
Root CAUSE analysis

INITIATING cause was the leak at a hydrogen connection line.
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

pipe

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
1
Emergency action

Not known

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