This simple and eco-friendly concept uses warm air to transform it into cool air and is called adiabatic cooling concept.  

It’s a natural phenomenon we can observe close to water holes where the temperature is fresher during summer. Warm and dry air will go through a wet exchanger to provoke the water evaporation through its energy, and then cool down. The warmer and drier the air, the more efficient the solution is. 

Three essential points


To ensure the prevention of legionellosis infection, and the comfort of the occupants, the system has been designed for a regular drain of the water and so no water drop or water steam reaches the components.


Starting investment for such solution is divided by 3 when compared to a traditional air conditioning system. 

Maintenance and its operation are 6 to 10 times lower than a traditional air conditioning system. 

In our extensive experience, we encountered very few breakdowns since there is few movements of the parts within the device. 
With the right dimensioning of the adiabatic module, its electric consumption will be very.  

Recovered rainwater can supply the module which only uses what it necessary to evaporate water and the mineral deconcentration cycle. 


The electric consumption is divided by 10 in comparison to the traditional air conditioning system. 
No refrigerant liquid is used (which has a negative impact on the ozone layer). 

It is an interesting solution for buildings regularly open since the adiabatic cooling process does not provoke energy over consumption. 
To reduce urban heat areas, it is recommended to use adiabatic cooling solutions instead of traditional air conditioning systems. 

How to integrate adiabatic cooling systems in buildings ?

Depending on the occupants’ needs and the volumes of the buildings, our solutions will operate independent equipment located on the façade, roof or mobile (inside the buildings). 
Solutions also exist in complement of simple or double flux CTA systems and can be connected on the air input or air outlet of the CTA system. 


Our strengths, your advantages

Case study - Décathlon, Lompret (59)


The project objective was to optimize the cooling system homogeneity in different areas of the building without the use of air conditioning system. 


The orientation of the building and strong winds has been studied to define the best configuration per area of the building. 

On one of the two areas monitored, the adiabatic cooling system has been combined with natural ventilation to ensure an acceptable new air flow.

Cell 1 (adiabatic cooling system + natural ventilation) 

  • Surface: 6021 m²
  • Height: 9,3 m
  • Air inlets on WEST façade 
  • 5 devices with pivoting blades on the roof 
  • 10 adiabatic cooling systems 
  • 16 000 m3/h with 8 ways diffusor

Cell 2 (adiabatic cooling system only) 

  • Surface: 5972 m²
  • Height: 9,3 m
  • 4 devices with pivoting blades on the roof ​​​
  • 9 adiabatic cooling systems 
  • 16 000 m3/h with 8 ways diffusor


Results & advantages 

  • Reduction of the energy consumption  
  • Improved work conditions (comfort) 
  • Air renewal (health)