LAUDA offers temperature control solutions for the hydrogen sector along the entire value chain - from the production of hydrogen to the development and testing of fuel cells to the refueling of vehicles. Our process cooling systems and equipment temper electrolysers and compressors, assist in the drying and purification of the hydrogen and are responsible for pre-cooling it to -40 °C for the refueling process. They are also used in test stands for fuel cells' development and quality control.


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GREEN HYDROGEN: Energy source of the future

Hydrogen is considered highly promising for an environmentally friendly and efficient energy-saving system – in the field of both energy storage and mobility. To achieve this, the production of green, climate-neutral hydrogen is essential. However, this is only possible with the right technology. Hydrogen’s great potential as an energy source indicates that this could pay off.

Hydrogen has a high energy content (calorific value) of 33 kWh/kg. In comparison, diesel fuel has 10 kWh/kg. By offering higher energy efficiency compared with combustion engines, fuel cell/electric drive systems can achieve a range of about 800 km with a tank filled with 5 kg of hydrogen. In addition, hydrogen electrolysis is an excellent way to utilize surplus electricity from renewable energies.


LAUDA has been a strong partner to producers and operators of hydrogen refueling stations since 2015, and in this time, has delivered dozens of systems to various industry leaders. These systems include SUK 350 L process cooling units for cooling hydrogen during refueling, as well as Ultracool line circulation chillers for cooling the electrolyzers during hydrogen production or the compressors when compressing and filling the hydrogen into storage tanks. Both products are serially produced.

For the refueling process, the hydrogen must finally be cooled down to -40°C to ensure that the temperature in the vehicle tank does not rise above 85°C due to the compression of the remaining gas (that's still in the tank from a previous refueling), thus reaching a critical value. LAUDA offers innovative temperature control systems for this purpose, which meet the special features of hydrogen as an energy source and also the standards for refueling vehicles. Our systems use an indirect cooling system and an additional cold storage buffer tank, which increases efficiency and makes the full cooling capacity immediately available.  

Please also read our press reports on the subject:

- Precise Temperatures for Hydrogen, The Energy of the Future
- Technological Expertise in Hydrogen Cooling

A hydrogen filling station with LAUDA cooling devices.
Hydrogen filling station with cooling provided by LAUDA devices / © Sam Moraud – HRS
Two circulation chillers from the Ultracool series stand side by side.

The new generation of LAUDA Ultracool circulation chillers

Experienced the improved circulation chillers in the new generation of the LAUDA Ultracool series. Thanks to their safe and reliable operation, even in tough conditions and in ambient temperatures as low as -15°C, they are the perfect choice for demanding temperature control applications for hydrogen systems.

Ultracool circulation chillers New Generation

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Precise temperatures for hydrogen logistics

Hydrogen must be pre-cooled in order to absorb the thermal energy created while refueling at a pressure of 700 bar. To achieve this, a short burst of high cooling output is required. To be precise, 40 kW for a period of about 20 seconds, shortly after the start of the refueling process. The indirect cooling process, as applied by LAUDA, allows an accumulator to be realized, which reduces this output by half and ensures that the dispenser is ready immediately, as soon as a vehicle pulls up.

What’s more, the thermal energy can be discharged over distances of 30 to 40 meters. This allows the cooling system to be positioned further away from the vehicle where the cooling output is needed. This is desirable because the cooling system causes noise emissions. Indirect cooling is also more technically robust, which qualifies it for outdoor use in the typical outdoor temperatures of central Europe, which are steadily rising.

Find out more: Download our hydrogen brochure here!

Find out what hydrogen can do and how your hydrogen systems can benefit from our devices in our free brochure.



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