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Fire on a Hydrogen Bus During Refueling (1072)

The fire developed an early morning on a hydrogen bus at a refuelling station for public transport. The fire Department was called to site responding to reports of a fire on the property. A section of the highway was closed as firefighters.According to the bus company release, one bus was destroyed and the dispenser of the hydrogen fuelling station was damaged. The stationary hydrogen storage and the rest of the Explosions were heard and seen from the tanks on the bus that had just been filled.

Fire on the Hydrodesulfurization Unit of a Refinery (1066)

Around 4 a.m., a major leak occurred at the outlet of the diesel hydrodesulfurization furnace in a refinery. The goal of this unit is to lower the sulfur content of diesel fuels produced in other units, by a catalytic reaction in the presence of hydrogen. At the moment of the leak the furnace was restarting. The alarms of the temperature sensors at the oven outlet were triggered. At 4:08 a.m., the operator shut down the hydrogen compressors and diesel charging pumps, closed the supply valves and called the emergency status. The first emergency operation was to decompress the unit.

Near Miss: Hydrogen Detector Triggers Alarm at Airport Refueling Station (1064)

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 hydrogen filling station was up in safe mode and the hydrogen storage system isolated. The connection pipes were purged via the vent and the power supply cut off. An on-call technician from the company in charge of managing the station arrived at 6:15 a.m., confirmed that the installation has been made safe and stopped the alarm. The leak was located on the compressors filter.

Near Miss: Hydrogen Leak at Airport Refueling Station Causes Emergency Response (1063)

This near miss occurred at an airport's hydrogen refilling station. At 7:35, a hydrogen leak was detected by hearing whistles in the near of a pipe. The operators warned the airport firefighters ten minutes later. Upon their arrival, the firefighters set up a security perimeter of 150 m around the installation. The station is located on the border between the public space and the private space and was surrounded by a fence with a gate accessible only by a code unknown to the emergency services.

Leakage at a Hydrogen Buses Refilling Station (1062)

This near miss occurred at a depot site with 20 fuel cell buses are operated by a local bus company. A hissing sound was heard coming from a hydrogen tank at the refuelling facility, and the local fire department was alerted.After roughly two hours, the fire brigade managed to close the main hydrogen supply, temporarily solving the problem, and local buses were able to resume their service, but were not able refill their H2 cylinders.

Blind Flange Connection Failure Causes Hydrogen Fire During Pipeline Inspection (1060)

An in-line inspection of the hydrogen pipeline was being conducted and prior to the last run of the in-line inspection tool (mfl), hydrogen gas was released and ignited from a blind flange connection failure on a temporary separator filter installed at the receiver site. The fire was immediately identified by on-site personnel. There were no injuries. The pipeline section was isolated and de-pressurised to the facility flare. Local emergency responders were dispatched and contained and extinguished the fire. The fire affected the station piping and equipment in the surrounding area.

Hydrogen Release and Fire at Pipeline Meter Station During Winter Storm (1056)

A hydrogen release and subsequent fire occurred at meter station of a pipeline transporting hydrogen to a refinery. Local refinery emergency response team responded and secured the area. The pipeline was isolated, and the fire extinguished itself. During a winter storm, the area was experiencing abnormal freezing conditions and widespread power outages were occurring. As a result, third party hydrogen supply to the refinery was reduced. These upsets resulted in the need to export larger than normal flow rates on the hydrogen pipeline.

Release from a Hydrogen Truck (1055)

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 station, the leak did not pose any risk to people or the environment. A preliminary assessment identified a faulty valve s source of the leak, but t was unclear a that time if it was a single defect or a systemic (i.e. design) problem.

Road Crash involving a Fcev (1054)

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 no one was injured.The vehicle was extensively damaged on both front and rear ends and later declared a total loss. A vehicle data analysis indicates that the vehicle and controls operated as designed.

Explosion of a Storage Vessel in a Hydrogen Production Facility (1053)

This incident occurred at the hydrogen production and storage unit of (probably) a power plant using hydrogen as a coolant of the turbine-generator system. Hydrogen was produced probably by water electrolysis (the source does not say it) and stored in 6 steel tanks. One of the six hydrogen storage tanks exploded killing a staff member. The investigation determined that a mixing of hydrogen and oxygen occurred in the tank. The needle valve of the hydrogen and oxygen pressure regulator as jammed, and the oxygen leaked into the hydrogen main supply line and entered the hydrogen tank.
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