Challenge
To ensure the reliable operation of hydrogen buses, the supplied hydrogen must be pressurised to the required level and be constantly available. At the same time, fast refuelling times and flexible operating conditions are crucial.

Solution
A diaphragm compressor compresses the supplied hydrogen and makes it available for storage and refuelling.

The system is designed to safely handle different inlet pressure ranges and ensure a stable supply to the refuelling station.

Implementation in Germany
At a hydrogen refuelling station for bus fleets, the delivered hydrogen is drawn in from trailers and compressed to up to 480 bar.

The compressed hydrogen is then stored in storage systems, from which the vehicles are refuelled as required. The interaction between the compressor and the storage system enables short refuelling times and reliable operation in daily use.

Results

• Reliable supply to hydrogen bus fleets
• Flexible compression under varying inlet pressure conditions
• Efficient storage and rapid refuelling
• Stable operation of the refuelling station infrastructure