HIAD Nature of the Consequences: Near Miss

[NOTE: The system involved in this neear miss are not completely clear]The system involved appears to consist in an electrolyzer, a compressor and high pressure tanks, used to refuel hydrogen buses.…

An operator noted a loose tube sheet flange stud on a high temperature, high pressure heat exchanger in an hydrodealkylation unit.The stud was found to be cracked through. Analysis proved to be made…

This near miss occurred at the at an airport's hydrogen refilling station. Around 4:30 a.m., the hydrogen detector of the station was triggered and a sound and light alarm were activated. The…

An oil leak in a compressor was identified in the end of Aug 2015 by a technician performing regular maintenance on the compressor. The oil leak had caused a contamination of the entire system from…

A hydrogen and fuel cells bus was hit by a private car, which was driving out from a parking place. Body damage on the rear, right side.

A private car did not observe the right of way and hit a hydrogen and fuel cells bus on the right side.

Private car not observing the right of way hit a hydrogen bus on the right side

A truck-trailer carrying compressed hydrogen cylinders stopped on an autobahn and reported a hydrogen leaking from the cylinders. The highway was immediately closed in both directions. When the fire…

A hydrogen leak took place on a trailer carrying compressed hydrogen, located inside the fenced perimeter of a hydrogen station. According to the company managing the hydrogen delivery and refuelling…

An accident involving a truck hauling liquid hydrogen closed an interstate highway for two hours.

The right front side of a FCEV was hit by another car.

The vehicle was being driven in traffic at low speed when it was struck from behind by a full-size pickup which forced the fuel-cell vehicle forward into another pickup. No hydrogen was released and…

A rollover accident involving a tanker truck carrying 12,000 gallons of liquid hydrogen forced the evacuation of nearly 50 homes.

During the start-up of a propylene hydrogenation reactor, very high temperatures were generated in the catalyst bed. At the time, propylene and hydrogen were being fed to the reactor which contained…

A short circuit developed in the wiring of a fire eye system on one of two 600 psig boilers serving a refinery. This triggered a rapid sequence of events that resulted in a one week shutdown of much…

Traffic accident with heavy rain.Four persons were killed when a pickup track collided head-on with a liquid hydrogen tanker in heavy rain.

Transport collision between hydrogen trailer and car, without hydrogen release. (R. G. Zalosh and T. P. Short, COMPARATIVE ANALYSIS OF HYDROGEN FIRE AND EXPLOSION INCIDENTS, Quarterly Report No. 2…

A truck conventional truck moved to another lane and did not see the FCEV. The collision caused a total loss to the latter.

Truck moving backwards hit a hydrogen and fuel cells bus and damaged its side mirror.

At 17:30 on 5 may 2019, the pipeline operator was notified by a third party that there was a possible leak on its hydrogen pipeline, as identified by sound. Operator personnel arrived on the site at…