Low temperature heat
to reusable energy
conversion machine
Thermal machine converting low temperature heat into reusable energy
Electricity
Reduce your primary energy consumption
Compressed gas
Easy to store and to transport
Thermal enhancement
Improve the energy efficiency of your process
A disruptive technology
Current prototype – TRL6
Currently in testing in laboratory
We develop a modular thermal machine which valuate heat from 60°C into reusable energy
Supercritical CO2 ?
The thermodynamical fluid « supercritical CO2 » is achieved when carbon dioxide (CO2) is held over his critical pressure (above 74 bar). Above this point, the CO2 enters in a particular state where it combines the physical properties of liquids and gases. Our process requires no phase change (evaporation and/or condensation) and works only with the density variation of the fluid. The main challenge of our technology is the design of the structure for an optimal use of the exceptional properties of sCO2.
The exceptional properties of CO2 :
Operating principle
The conversion of waste heat into reusable energy is carried out in 3 stages :
- Alternating of heating / cooling cycles of the sCO2 in the modules
- Pressure and volume variations converted into mechanical energy
- Conversion of the mechanical power into the final energy vector
The CO2 is in a closed circuit in the machine. It is maintained in a homogenous state (no phase changing) during the operation.
Innovative advantages
Efficiency
The cellular architecture of our machine enables to get efficient heat transfers.
Usable temperature
The waste temperature needs at least 60°C with a temperature difference of 40°C to the cold source in order to ensure an economic viability of the installation.
Scalability
The cells have a standardized architecture. The amount of the cells can be adapted to the size of the heat deposit. The control system is centralized and independent of the quantity of cells.
Robustness
Our machine is developed according to the high exigences of the EU market. The tightness of the sCO2 pressure chamber is done with static seals, which reduces the wear and the maintenance efforts over the time.
Adaptability
Our machine adapts to temperature variations and the intermittency of the heat sources. Wide operating conditions with good efficiency can be achieved.
Neutral fluid
The use of CO2 as a thermodynamic fluid minimizes some risks (non-flammable, non-toxic) reduces the environmental impact (GWP=1, ODP=0), while enhancing energy efficiency
Innovative advantages
Efficiency
The cellular architecture of our machine enables to get efficient heat transfers.
Scalability
The cells have a standardized architecture. The amount of the cells can be adapted to the size of the heat deposit. The control system is centralized and independent of the quantity of cells.
Adaptability
Our machine adapts to temperature variations and the intermittency of the heat sources. Wide operating conditions with good efficiency can be achieved.
Usable temperature
The waste temperature needs at least 60°C with a temperature difference of 40°C to the cold source in order to ensure an economic viability of the installation.
Robustness
Our machine is developed according to the high exigences of the EU market. The tightness of the sCO2 pressure chamber is done with static seals, which reduces the wear and the maintenance efforts over the time.
Neutral fluid
The use of CO2 as a thermodynamic fluid minimizes some risks (non-flammable, non-toxic) reduces the environmental impact (GWP=1, ODP=0), while enhancing energy efficiency
Interested in learning more?
Download our brochure
