Disclaimer: The Lessons Learned Database includes the incidents that were voluntarily submitted. The database is not a comprehensive source for all incidents that have occurred.
Because the bottle was located outside at the time of the event, and the hydrogen did not find a source of ignition while venting through the relief valve, nothing serious happened. The failed regulator was replaced and operations continued.…
LESSONS LEARNED:
The following corrective actions have been taken:
All chemicals, including gases, should be clearly labeled and expiration dates (if applicable) identified. Incidents are more common when incompatible chemicals are mixed or when chemicals are stored/transferred using incompatible equipment.…
A flammable gas explosion is an analyzed hazard and gas detection/shut off is a safety significant control system that requires a limiting condition for operation (LCO). The rigor of the evaluation of flammable gas systems was inadequate. There…
A tool is provided for removing the cylinder cap that cannot contact the valve.
Several best practices resulted from this incident and will be implemented if similar circumstances present themselves in the future.
1. Combustible gas detectors calibrated for hydrogen can falsely report hydrogen alarms due the presence of other gases the detector may pick up, such as carbon monoxide from engine exhaust or other sources. Since this event occurred, two…
A hydrogen release of this type is a significant event. The event highlighted a number of procedural contributing factors that will influence the manner in which these fuel cell systems will be serviced in the future. A complicating factor in…
Personnel were focused on the AGES system test and results, not the compatibility of the test equipment. The manual valve was needed to successfully test the system, however the fact that this particular valve could not accommodate the full…
Key:
We are the leaders in the building industries and factories. We're word wide. We never give up on the challenges.
