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Clean Hydrogen Partnership

Fire on a sintering furnace for uranium pellet

Event

Event ID
242
Quality
Description
A hydrogen leak occurred on a sintering furnace in a manufactory of uranium pellets. The event happened during the restart phase after a period of maintenance. The hydrogen ignited at the location of the electrical connection used for the resistance-heating of the furnace.
The fire damaged the cooling system causing the release of 300 l of water.
Event Initiating system
Classification of the physical effects
Hydrogen Release and Ignition
Nature of the consequences
Fire (No additional details provided)
Macro-region
Europe
Country
France
Date
Main component involved?
Reactor / Oven / Furnace / Test Chamber
How was it involved?
Leak & Formation Of A Flammable H2-Air Mixture
Initiating cause
Unknown
Root causes
Unknown (No additional details provided)

Facility

Application
Steel And Metals Industry
Sub-application
uranium processing
Hydrogen supply chain stage
All components affected
uranium sintering furnace, resistance-heating, water cooling system
Location type
Confined
Location description
Industrial Area
Operational condition
Pre-event occurrences
The event happened at the restart of the furnace after a period of maintenance.

Emergency & Consequences

Number of injured persons
0
Number of fatalities
0
Post-event summary
300 l of water inundated the facility
Emergency action
The pipeline section was isolated and de-pressurised to the facility flare. Local emergency responders were dispatched and contained and extinguished the fire. The fire affected the station piping and equipment in the surrounding area.

Event Nature

Release type
Gas-liquid mixture
Involved substances (% vol)
H2,
H2O
Presumed ignition source
Electricity

References

Reference & weblink

Event description in the French database ARIA<br />
https://www.aria.developpement-durable.gouv.fr/accident/15508/<br />
(accessed October 2020)<br />

JRC assessment