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Clean Hydrogen Partnership

Fire in the off-gas system of a nuclear power plant

Event

Event ID
258
Quality
Description
Hydrogen leaked from an off-gas system, followed by a fire. The leak was due to a faulty gasket.

[Zalosh and Short, 1978]
Event Initiating system
Classification of the physical effects
Hydrogen Release and Ignition
Nature of the consequences
Fire (No additional details provided)
Macro-region
North America
Country
United States
Date
Main component involved?
Off-Gas System (Gasket)
How was it involved?
Leak & Formation Of A Flammable H2-O2-Air Mixture
Initiating cause
Material Degradation (Generic)
Root causes
Unknown (No additional details provided)

Facility

Application
Power Plant
Sub-application
Nuclear power plant
Hydrogen supply chain stage
Location type
Confined
Location description
Industrial Area
Operational condition
Unknown (No additional details provided)

Emergency & Consequences

Number of injured persons
0
Number of fatalities
0
Currency
US$
Property loss (onsite)
0
Emergency action
No active intervention. The whole LH2 content was left to evaporate and vent through the burst disc.

Event Nature

Release type
gas mixture
Involved substances (% vol)
H2,
O2
Ignition delay
Not reported

References

Reference & weblink

Table II - Industrial Incidents of Appendix A of Zalosh and Short<br />
COMPARATIVE ANALYSIS OF HYDROGEN FIRE AND EXPLOSION INCIDENTS<br />
Quarterly Report No. 2 for Period December 1, 1977 - February 28, 1978<br />
https://www.osti.gov/biblio/6566131<br />
(accessed September 2020)

JRC assessment