Heat exchangers

Absolut System offers highly efficient (> 98.5%) single- and two-phase heat exchangers for terrestrial and space applications.

Heat exchangers

Absolut System offers highly efficient (> 98.5%) single- and two-phase heat exchangers for terrestrial and space applications.

Principle

A heat exchanger is a piece of equipment designed to transfer thermal energy from one fluid to another (liquid or gas), without mixing, but also from a fluid to a solid (cold plate type exchanger).

Heat transfer is characterized by the exchange surface, which is specific to each technology, and the heat exchange coefficient, which depends on the fluid and geometry.

There are two types of heat exchanger:

Two-phase transfer:

Change of state (condensation or evaporation) at constant temperature and pressure.

Single-phase transfer:

With temperature rise or fall, but no change of state.

Absolut System
expertise

Absolut System expertise

Absolut System offers a range of highly efficient heat exchangers (ε > 98.5%) for transferring thermal energy in the best possible conditions, while reducing heat loss.

Absolut System offers a range of highly efficient heat exchangers (ε > 98.5%) for transferring thermal energy in the best possible conditions, while reducing heat loss. Essential components of the Reverse Turbo-Brayton (space) developed by Absolut System, they can also be fully adapted to your specifications (cryogenic or non-cryogenic conditions). Absolut System’s teams can support you from the definition of your requirements, through design and manufacture, right up to qualification (if necessary).

We have in-house capabilities for performance characterization, and can carry out mechanical tests thanks to our local partners.

Numerous heat exchanger configurations have been designed and tested by Absolut System:

Tube and shell heat exchangers (Microtubes)
3D by metal additive manufacturing
Microchannels
Metal foam plates

Our cryogenic heat exchangers are custom-designed thanks to our dynamic modeling skills and our ability to conduct sizing studies. Our technicians integrate heat exchangers developed by Absolut System into our cryogenic coolers.

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Thalès Alenia Space « Best on Innovation 2019 » award:

Design of a two-phase loop usig ammonia as the transfer fluid.

Absolut System cooled the mechanical pumping loop on the SES-17 satellite developed by Thalès Alénia Space for the European Neosat program. Design and manufacture of a Turbo-Brayton cryogenic cooler with a service life in excess of 15 years, thanks to non-contact hydrodynamic bearings.

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Absolut System expertise

Absolut System offers a range of highly efficient heat exchangers (ε > 98.5%) for transferring thermal energy in the best possible conditions, while reducing heat loss.

Essential components of the Reverse Turbo-Brayton (space) cryocooler developed by Absolut System can be fully adapted to your specifications (cryogenic or non-cryogenic conditions). Absolut System’s teams can support you from the definition of your requirements, through the design and manufacturing phases, up to qualification (if necessary).

We have in-house capabilities for performance characterization, and can carry out mechanical tests thanks to our local partners.

Numerous heat exchanger configurations have been designed and tested by Absolut System: