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Clean Hydrogen Partnership

Hydrogen release due to false alarm

Event

Event ID
903
Quality
Description

Following a loss of power the failure of a backup battery caused an alarm in a hydrogen storage facility. Consequently, a valve on the purge circuit activated and 30 m3 of hydrogen were released to the atmosphere.

Event Initiating system
Classification of the physical effects
Unignited Hydrogen Release
Nature of the consequences
release, no ignition
Macro-region
Europe
Country
France
Date
Component involved
CGH2 tank (stationary)
Failure mode
rupture
Initiating cause
conventional component failure
Root causes
Date entry in HIAD
01/01/2018

Facility

Application
Electrical, electronics and micro-electronics industry
Sub-application
electrical and/or electronic components production
Hydrogen supply chain stage
All components affected

CGH2 storage system

Process temperature range [C]
unknown
Process pressure range [MPa]
unknown
Location type
Unknown
Location
populated area
Operational condition
Pre-event occurrences

The incident was initiated by a power failure which triggered of the backup system

Emergency & Consequences

Number of fatalities
0
Number of injured persons
0
Post-event summary

30 m3 of hydrogen released to the atmosphere

In-depth data

Release type
gas
Involved substances (% vol)
H2 100%
Released amount (kg)
2.7
Probable IGNITION SOURCE

References

Sources categories
ARIA
Reference & weblink

Original description in database ARIA https://www.aria.developpement-durable.gouv.fr/accident/15757/ (accessed September 2020)