Event
- Event ID
- 366
- Quality
- Description
- While pressurizing a liquid hydrogen tanker for the transfer, a burst disc ruptured. The tanker pressure was 22 psig (ca. 1.5 bar). The relief valve was set at 27 to 29 psig (1.9 to 2 bar). The tanker was moved to remote location and the disc replaced under loaded conditions. The transfer was resumed. However, during the operation, there was a leak through the vent valve.
[Ordin, NASA (1974)] - Event Initiating system
- Classification of the physical effects
- Unignited Hydrogen Release
- Nature of the consequences
- Leak No Ignition (No additional details provided)
- Macro-region
- North America
- Country
- United States
- Date
- -
- Main component involved?
- Prd (Valve)
- How was it involved?
- Failure To Activate
- Initiating cause
- Unknown
- Root causes
- Root CAUSE analysis
- INITIATING CAUSE was due to the relief valve which did not operate. Because of this, the pressure increased sufficiently to cause the burst disc to fail. Leakage through the vent valve was attributed to water entering the system during repair to replace the burst disc.
Facility
- Application
- Hydrogen Transport And Distribution
- Sub-application
- LH2 tanker
- Hydrogen supply chain stage
- Hydrogen Transfer (No additional details provided)
- All components affected
- burst disc
- Location type
- Open
- Location description
- Industrial Area
- Operational condition
Emergency & Consequences
- Number of injured persons
- 0
- Number of fatalities
- 0
Event Nature
- Release type
- gas
- Involved substances (% vol)
- H2 100%
- Actual pressure (MPa)
- 0.15
- Design pressure (MPa)
- 0.2
- Presumed ignition source
- No ignition
References
- Reference & weblink
Mishap no 14 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
JRC assessment
- Sources categories
- ORDIN
