THERMAL ENERGY CONVERTER
We have established our business based on our expertise in various energy conversion systems. We conduct studies, design, and manufacture machine prototypes for a wide range of applications, including the aeronautical, naval, residential, and cogeneration sectors. All of our energy converters undergo rigorous testing in our state-of-the-art facilities
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INTERNAL COMBUSTION
ICE (INTERNAL COMBUSTION ENGINES)
We design and develop internal combustion engines (ICE) with power ranging from 1 kW to 1000 kW. We handle the design of all engine components in-house and establish the Integration-Validation plan for the system during the development phase. Additionally, we conduct endurance tests on our system under various environmental conditions to assess its durability in potential applications.
SPLIT CYCLE
These energy converters offer several advantages compared to conventional ICE:
- Thermal management can provide higher performance and efficiency.
- The Miller cycle can be achieved by simply increasing the length of the power cylinder.
- Piston friction can be reduced by offsetting the compression and power cylinders.
- The engine design allows for flexibility.
- It is compatible with additional devices, such as turbochargers and waste heat recovery systems.
- Higher thermal efficiencies can be achieved by incorporating an internal regenerator. »
We design and develop these engines with a power range of 1 kW to 100 kW. We handle the design of all components, define the integration validation plan during the development phase, and conduct characterization and endurance tests.
Patents : FR 3077095 – FR 3065489
GAZ TURBINE/TURBOGENERATOR
We have built expertise in designing, prototyping, and testing turbogenerator systems for various applications. Our internal research has explored different thermodynamic architectures for automotive, aeronautics, naval, and bus applications.
Currently, we are developing a high-efficiency and high-power-density turbogenerator based on the Intercooled Recuperative Reheat Gas Turbine (IRReGT) thermodynamic cycle.
Our turbogenerator system has a power range from 3 kWe (for small-scale concentrated solar power applications like Hélios) to over 150 kWe (for buses, trucks, and naval applications).
We are currently conducting comprehensive testing of this machine in our dedicated test bench facilities. Exergetica holds a license for more than 10 patents related to the IRReGT thermodynamic architecture, showcasing our commitment to innovation in this field.
EXTERNAL COMBUSTION
RANKINE
Known also as the vapor cycle, Rankine machines use changing phase working fluid as a working medium to achieve the Rankine thermodynamic cycle. This cycle uses a pump, a boiler (evaporator), an expander, and a condenser.
Water is used for medium and high-temperature sources and organic fluids for low temperatures.
We have designed different Rankine systems
for low, medium, and high temperatures.
Different expansion machines have been developed including:
– Piston expander
– Turbocompressors
– Scroll and impulse turbines.
patents :
– FR 3077122
– FR 3098286
Publications:
– Exergo-Technological Explicit Selection Methodology for Vapor Cycle Systems Optimization for Series Hybrid Electric Vehicles. ECOS 2018, Guimaraes, Portugal, 2018
– A Simulation and Experimental Study of an Innovative MAC/ORC/ERC System:
ReverCycle with an Ejector for Series Hybrid Vehicles. Energy, 230 (2021) 12083 https://doi.org/10.1016/j.energy.2021.120830 – 2021
– Assessing Fuel Consumption Reduction in Revercycle, a Reversible Mobile Air Conditioning/ Organic Rankine Cycle System. Energy, 210 (2020) 118588 https://doi.org/10.1016/j.energy.2020.118588 – 2020
Patents :
– FR 3079562
Publications:
– Stirling System Optimization for Series Hybrid Electric Vehicles Journal of Automobile Engineering, 2021
cliquez ici https://doi.org/10.1177/09544070211018034 – 2021
– Fuel Consumption Saving Potential of Stirling Machine on Series Parallel Hybrid Electric Vehicle:
Case of the Toyota Prius. SAE International, Detroit, Michigan, USA, 2018
STIRLING
Stirling engines are external combustion engines that have versatile applications such as Auxiliary Power Units (APUs) and Waste Heat Recovery (WHR) machines.
These reversible engines can also function as heat pumps, converting electric power into both hot and cold temperatures.
Stirling machines offer numerous advantages:
- Good efficiency
- No need for a working fluid
- Low material cost
- No lubrication required, resulting in minimal component wear
- Tri-generation capabilities (electricity, hot and cold) and the ability to utilize multiple fuels for cogeneration applications
At our company, we specialize in designing and developing Stirling engine prototypes for various applications. Our prototypes range in power from 2 kWe to 20 kWe. We have developed a high-efficiency and high-power-density Stirling machine based on a patented architecture, incorporating recuperative reheat technology. This machine is fully enclosed, and the electric generator is driven by a magnetic clutch, resulting in reduced emissions.
THERMOACOUSTIC
Thermoacoustic machines are external combustion and waste heat recovery systems that produce acoustic power.
These reversible machines can also be used as heat pumps, converting electric power into both hot and cold temperatures.
Thermoacoustic machines offer several advantages:
- Good efficiency
- No harmful working fluid
- Low material cost
- No lubrication required, resulting in minimal component wear
- Tri-generation capabilities (electricity, hot and cold) and the ability to utilize multiple fuels for cogeneration applications
At our company, we specialize in designing and developing thermoacoustic prototypes for various applications, including main energy converters, APUs, waste heat recovery systems, and heat pumps. Our prototypes have a power range from 100W to 10 kW.
patents :
– FR 3044707
– FR 3049696
– FR 3083595
Publications:
– Thermoacoustic Engine as Waste Heat Recovery System on Extended Range Hybrid Electric Vehicles. Energy Conversion and Management, Volume 215, 1 July 2020, 112912 – cliquezici
– Optimization of the Thermodynamic Configurations of a Thermoacoustic Engine Auxiliary Power Unit for Range Extended Hybrid Electric Vehicles. Energy, Volume 195, 15 March 2020, 116952 – cliquezici
ELECTRO CHEMICAL
PEMFC
Proton Exchange Membrane Fuel Cell
SOFC
Solid Oxide Fuel Cell
