How Do Alstom Fuel Their Hydrogen Trains?
I have not seen this question answered, so out of curiosity, I asked Google AI and received this answer.
Alstom fuels their hydrogen trains, specifically the Coradia iLint, using high-pressure gaseous hydrogen stored in tanks on the roof. The hydrogen combines with oxygen via fuel cells to generate electricity, which powers the electric traction motor, with only water and heat emitted. The trains refuel at specialized hydrogen stations in roughly 15 minutes.
Key Aspects of Alstom’s Hydrogen Fueling System:
Fueling Station: The trains are powered by specialized hydrogen filling stations, such as the Linde station in Bremervörde, Germany, which supplies gaseous hydrogen.
Refueling Process: The process is designed to be a “drop-in” replacement for diesel, with a filling time similar to that of diesel trains, providing a range of over 1,000 km.
Fuel Cell Technology: Inside the train, a fuel cell module (typically located on the roof) separates hydrogen molecules into protons and electrons, creating a flow of electricity.
Energy Storage: The system uses lithium-ion batteries to store excess energy from the fuel cells and energy recovered from braking.
Hydrogen Source: While some hydrogen is currently produced through conventional methods (steam reforming), there is a strong shift towards using green hydrogen produced from renewable energy on-site.
The Coradia iLint has a top speed of 140 km/h and serves non-electrified lines as a zero-emission alternative to diesel.
The Anonymous Widower 