Skip to main content
Clean Hydrogen Partnership

fire at the top of a vent stack

Event

Event ID
436
Quality
Description
A fire occurred on top of a vent stack attached to a LH2 vessel. The ignition source was unknown but electrical storms in the vicinity may have been responsible. The flame was extinguished by purging the line with helium.

[Ordin, NASA (1974)]
Event Initiating system
Classification of the physical effects
Hydrogen Release and Ignition
Nature of the consequences
Macro-region
North America
Country
United States
Date
-
Main component involved?
Venting System (Exit)
How was it involved?
Ignition Of Vented H2
Initiating cause
Extreme Environmental Conditions (Lightning)
Root causes
Unknown (No additional details provided)
Root CAUSE analysis
Too less details, ROOT CAUSE analysis impossble.

Facility

Application
Non-Road Vehicles
Sub-application
Aerospace
Hydrogen supply chain stage
Hydrogen Storage (No additional details provided)
All components affected
vent stack
Location type
Open
Location description
Industrial Area
Operational condition
Unknown (No additional details provided)

Emergency & Consequences

Number of injured persons
0
Number of fatalities
0
Environmental damage
0
Property loss (offsite)
0

Event Nature

Release type
liquid
Involved substances (% vol)
H2 100%
Release duration
unknown
Presumed ignition source
Weather - lightning
Ignition delay
N

References

Reference & weblink

Mishap no 77 in <br />
P. L. Ordin, Review of hydrogen accidents and incidents in NASA operations, 1974, NASA TM X-71565<br />
https://ntrs.nasa.gov/citations/19740020344

Lowesmith et al., Safety issues of the liquefaction, storage and transportation of liquid hydrogen: An analysis of incidents and HAZIDS, Int. J. Hydrogen energy (2014) https://doi.org/10.1016/j.ijhydene.2014.08.002

Hankinson and Lowesmith, Qualitative Risk Assessment of Hydrogen Liquefaction, Storage and Transportation, FCH JU project IDEALHY, Deliverable 3.10 (2013)<br />
confidential<br />
(accessed October 2025)

JRC assessment