Hydrogen is pumped into the tank of a hydrogen car under high pressure. The heat exchanger is used to dissipate the heat added to the hydrogen by the compressor.
The cooling of the hydrogen is performed using a method depending on the cooling system, in this case a liquid cooler. This is characterized by the fact that there is no phase transition and heat transfer takes place between two liquids.
Hydrogen is the future and is increasingly gaining ground. It is a sustainable alternative to fossil fuels. Hydrogen vehicles use a fuel cell to generate electricity from hydrogen and oxygen. This electricity powers the car’s electric motor(s). Instead of combustion gases, only water remains. Hydrogen is buffered at medium pressure and must be pumped into the car’s tank under high pressure. Refueling ± 4 kg of hydrogen (good for 650 km of driving pleasure) must not take longer than a regular refueling session. This is partly decisive for the cooler. ROBOX has realized a compact design that had to fit in a container (in this case not our compact Micro Shell & Tube). This cooler is suitable for the high pressures and cooling capacity required for the proper functioning of the refueling station.
This concerns a Shell & Tube heat exchanger. A one-pass shell, fixed tubesheets, and with integral welded headers. Type BEM 141/3400 entirely in stainless steel and designed for 1,050 barg according to PED cat.IV/Mod.H1 and ASME VIII Div.1 (+ extra requirements from Div.2 and 3).