AEROSPACE

Lighter heat exchanger

With Comhex^©, take advantage of our unique microchannel technology. Due to a higher area density, it provides significantly smaller and lighter heat exchangers.

RAIL

Vibration-proof heat exchanger

Comhex^© is compliant with hard working conditons (vibrations, wide range of temperatures)

AUTOMOTIVE

Ultra compact heat exchanger

Thanks to its smart design, Comhex^© allows a significant footprint reduction. A real asset for the battery thermal management!

MARINE

Copper heat exchanger

Works are underway to adapt our high-performance microchannel technology to copper heat exchangers. Future Comhex^© will fit for seawater environment for silent and efficient cooling systems.

DATA CENTERS

Safer heat exchanger

Comhex^© offers an efficient heat exchanger for the cooling of data centers. The lower refrigerant charge improves the safety of your sensitive installations!

MILITARY

Customisable heat exchanger

Thanks to its clever design, Comhex^© has a great modularity. Its miniaturization enables stealthy system.

HVAC

Greener heat exchanger

Using microchannels reduces refrigerant more than 50% in comparison to classic F&T coils. Comhex^© is environmental-friendly and safer for your AC applications.

STIRAL & COMHEX^©

Comhex^©: a revolution in microchannel heat exchangers

Comhex^© is a smart and small heat exchanger based on the innovative technology of full-microchannel. This means that, unlike the traditional MCHE, both fluids flow through microchannels. Hence, the heat exchange surface is greater and the efficiency of the heat exchanger increases sharply. This is one of the many advantages of the full-microchannel technology, such as a lower footprint and a drastic decrease of the refrigerant charge that will help you meeting environmental regulation or security rules.

The Comhex^© name comes from COMpact Heat EXchanger, to highlight its high level of compactness: the area density of Comhex^©can compete successfully with the area densities of Printed Circuit Heat Exchangers (PCHE) and Marbond Heat exchangers.

Comhex^© settings

Thanks to its adaptative design that makes him intrinsically multipurpose, Comhex^© can fit many situations:

Liquid-liquid
Liquid-gas
Dual phase-liquid

This enables the design of efficient evaporator or condenser.

All our heat exchangers are made of stainless-steel, for the sturdiness, the reliability and the reasonable cost of this material. The stainless-steel brazing with nickel alloys assures good resistance to the galvanic corrosion (that could happen with a copper-based brazing) and offers a wide range of temperatures, until 600°C (or 1100°F).

Battery thermal management.
Power electronics cooling.
Heat recovery from liquids or exhaust gas.
Heating & cooling (HVAC, vehicles): condensers & evaporators.
ICE & hybrid engines cooling.
Your specific request…

The high adaptability of the Comhex^© design and sizing, and the great versatility of the stainless-steel allow tailor-made solutions that will suit to your specific request.

Light weight and high resistance to corrosion are key-requirements for some applications. This is why we develop the full-microchannel design on new materials such as aluminium and copper. More specific alloys can be studied on demand. At Stiral, we are not only willing to help for today’s challenge, but also to solve the tomorrow’s ones.

Comhex^© is unique worldwide.
Its powerful design is right now available in stainless steel. A copper Comhex^© for marine is coming soon. And soon after, two aluminium devices will be released : one for automotive, the other for aerospace.

Learn more about Comhex^© from the experts at Stiral. They will take careful attention to your needs, so that you can rely on their professionalism. Be sure they will put all their know-how at your service to find the most sustainable, money and space-saving solution!

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News

Full-microchannel heat exchangers Comhex were successfully evaluated!

A serial of benchmark tests were performed on heat exchangers Comhex. They were compared to the performance of a traditional BPHE on both condenser and evaporator settings of a heat pump. Results are strongly in favor of Comhex, with a significant reduction of the refrigerant charge and a higher heat transfer capability per unit of internal volume (improvement above 100%!)

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Legals

Contact

STIRAL & COMHEX©

Comhex©: a revolution in microchannel heat exchangers

Comhex© settings

Comhex© applications