Heat recovery:
a key lever for decarbonisation
Recovered heat is the most environmentally friendly and the most economical.
Principles and benefits
Our high-performance heat exchangers capture waste heat from industrial processes for optimal reuse, thereby drastically reducing fossil energy consumption and the carbon footprint of your facilities.
This approach to energy recovery fits perfectly within an ecological economy framework, transforming thermal losses into valuable resources for your production process or other applications.
The recovery of waste heat is an essential solution for addressing the challenges of the energy transition. By harnessing energy that is often wasted, it allows for the optimisation of resources in industry, agriculture, as well as in residential and tertiary buildings.
Waste heat refers to the heat that is inevitably released by processes, often without being utilised. This waste represents a missed opportunity, as this heat can be recovered and valued.
It can be found in various contexts: the cooling of industrial processes, heating appliances, waste incineration, and even drying.
Recovering this heat is crucial. Economically, it is generally cheaper than consuming new resources. Furthermore, it helps to reduce CO2 emissions and decrease the use of fossil fuels, thereby strengthening companies' CSR strategies. In summary, valorising waste heat is a wise choice for a sustainable future.
Need help ?
We can connect you with providers specialised in technical and financial support.
The AIREDIF heat capture solutions
AIREDIF provides you with different types of exchangers that allow you to capture waste heat in the best possible way, taking into account the nature of the medium and its temperature level.
The captured heat can be reused at a lower temperature level or upgraded with one of our heat pump solutions.
Therm-X
- Exchange between a dirty liquid flow and a clean liquid flow.
- Up to200 m3/h.
- Easy and quick cleaning.
Therm-X is a self-cleaning heat exchanger, ideal for heat recovery and wastewater treatment. It uses concentric Pillow Plates that are mechanically cleaned by mobile brushes, ensuring optimal heat exchange by eliminating deposits.
Coils
- Exchange between a clean gaseous flow (air) and a clean liquid flow.
- High flow rates.
- Wide choice of materials for the tubes and for the fins.
- Custom dimensions.
- Different mechanical constructions.
The air coils provide a robust and versatile solution for transferring heat between air and a liquid heat transfer fluid in complex spatial configurations. They are ideally suited to the high airflows of drying or ventilation processes, as well as to combustion gases, allowing for flexible integration. They represent a key component for utilising gaseous thermal effluents and optimising the overall energy efficiency of industrial installations.
Plate and shell heat exchangers
- Exchange between two clean liquid flows.
- Exchange between a clean gas flow and a clean liquid flow.
- Vapour condensing
- High flow rates.
- Wide choice of materials for the plates and the shell.
- Different mechanical constructions.
Plate and shell heat exchangers combine the high thermal efficiency of plates with the robustness of a tubular structure.
This solution allows for the sustainable recovery of large quantities of heat under extreme pressure and temperature conditions.
Flue gas condenser
- Very low pressure losses.
- Wide choice of materials for the plates, suitable for aggressive condensates.
- Custom dimensions.
Pillow plate condensers maximise the recovery of latent heat from combustion gases due to their high turbulence and exceptional resistance to fouling. This robust technology enables the effective utilisation of gaseous and humid industrial effluents while minimising maintenance requirements.
Industrial shell and tube heat exchangers
- Exchange between gaseous flows and/or liquid flows.
- High flow rates.
- Wide choice of materials for the tubes and the grille.
- Custom dimensions.
- Different mechanical constructions.
Industrial shell and tube heat exchangers offer unparalleled robustness for handling fluids under high pressure or containing particles, ensuring reliable heat recovery in the most severe environments. Their versatile design allows them to be adapted to complex configurations of liquids and gases, thus ensuring sustainable energy efficiency for demanding industrial processes.
Compact shell and tube heat exchangers
- Exchange between clean gas flows and/or clean liquid flows.
- Low to medium flows.
- Limited choice of materials for the tubes and the shell.
- Standardised, compact, custom length.
- Different configurations.
The compact shell and tube heat exchangers are primarily found in applications related to refrigeration and compressed air circuits :
- oil cooler,
- desuperheater,
- condenser.
Industrial shell and tube heat exchangers
- Particularly suitable for significant temperature changes.
- Exchange between gaseous flows and/or liquid flows.
- Low/medium flows.
- Stainless Steel.
The integration of an expansion bellows allows for intermittent high-temperature operations and/or rapid temperature variations.
Example: condensation of steam vents or subcooling of condensates.
Echangeurs monotube ailettés
- Exchange between a gaseous flow (air) and a clean liquid flow.
- High flow rates.
- Wide choice of materials for tubes and fins.
- Custom dimensions.
Monotube finned heat exchangers offer a simple, robust, and economical design, suitable for fluids such as hot water, steam, or thermal oil. With a single fluid passage, they ensure very low pressure drop and excellent operational reliability.
Monotube exchangers allow for the use of materials that are not available in the case of finned batteries or for processes that are incompatible with traditional finned batteries (high temperatures, aggressive or fouling fluids, ...).
Pillow Plate heat exchangers
- The extracted air contains a lot of moisture and dust.
- Permanent condensation.
- Optional integrated CIP device.
A high-performance solution for capturing heat from air extraction in drying processes.
The recovered heat can be used, for example, to preheat the fresh air entering the process using a finned coil.
Plate heat exchangers, brazed or gasketed
- Exchange between two flows of clean liquids.
- Allow for easy crossing of temperature profiles and low pinches.
- For low to very high flow rates.
Plate and gasket or brazed heat exchangers offer exceptional thermal efficiency for heat recovery due to their large exchange surface in a compact size, and this at a very modest cost. Their modularity allows for easy adjustment of power to specific needs.
Plate heat exchangers
- Exchange between two clean gas (air) flows.
- Very compact.
The incoming flow is preheated (or cooled) by the outgoing flow.
A simple and cost-effective device.
Ready to commit to the path of heat recovery?
Let's turn your vision into reality. Contact us today to set your processes on the path to excellence.