ORC - Organic Rankine Cycle
At Enogia, we believe in a third way of renewable energy production: converting heat into energy. Indeed, the reliable production of electricity from traditional solar photovoltaic and wind power plants cannot be achieved without costly and environmentally questionable energy storage systems. However, by converting renewable heat or waste heat into electricity, you can generate clean and stable energy all year round, 24 hours a day, 7 days a week.
ENOGIA designs and manufactures heat-to-power conversion systems based on the combination of the Organic Rankine Cycle (ORC) with exclusive and patented microturbine technology. The primary heat sources can be CSP solar energy, biomass, geothermal sources, waste heat recovery (WHR) in industrial processes, or internal combustion engines (used as bottoming cycles).
Furthermore, we believe that this technological breakthrough will be accessible not only to large energy producers and other major entities but also to small businesses and transportation. Indeed, we share the vision of bringing this technology to every individual by designing compact and affordable devices. Currently, our ORC modules can be used in remote locations and are the smallest devices available on the market, so you can use them anywhere!
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Turbine – Organic Rankine Cycle - ENO-100LT compact ORC module
This extremely compact ORC module containing all the components for converting heat into electrical energy is installed very simply:
On one side, heat installation with supply and return, and on the other side, connection to the electrical grid through an inverter.
The system is fully automatic: When heat is lacking, the system shuts down, and when power returns, the system starts up automatically.
Scheme for Binder biomass boiler 500kWth for supply temperature 150°C. Electrical power 59kW.
ORC Turbine - Device Construction
Proper turbine operation requires cooling, e.g., by DryCoolers.
Applications of ORC
- Biogas Plants - Enhancing cogeneration engines on biogas by recovering exhaust gases, jacket water, or both; direct conversion of biogas to electricity using a boiler - heat recovery
- High-Temperature Solar Installations - Parabolic concentrating solar collectors for high-temperature applications
- Biomass Boiler Plants, Cogeneration - BINDER biomass boilers, Herz wood chip and pellet boilers
- Geothermal - Natural heat sources, medium temperature wells (from 80°C)
- Industrial Waste Heat Recovery - Process heat, exhaust gases, waste steam
- Diesel Prime Movers - Increasing efficiency through exhaust gas recovery, jacket water, or both
- Marine and River Transport, Rail, Heavy Trucks - Reducing fuel consumption by propulsion engines
- Recovery of waste heat from the exhaust system and/or engine cooling system
Achievements in the Automotive Industry and Transportation Sector
- Train Diesel Engine (prototype delivered in 2015)
- Vessel Diesel Engine (prototype installed in 2017)
- Truck Engine (prototype planned for 2018)
- Automotive Engine (prototype planned for 2018)
Medium ORC
- Water 80-130°C for low-temperature LT system
- Water 130-180°C for medium-temperature MT system
- Flue gas 180-500°C for direct evaporation DE system
Electrical Power of ORC Devices
- 5-180kWel
- Up to 400kWel (multi-Turbine Systems)
ORC Scheme
TECHNOLOGY - TURBOEXPANDER
The two best components are a highly efficient kinetic turbine and a high-speed generator.
ENOGIA’s innovation relies on a patented microturboexpander which was specifically designed for high reliability and performance, as well as low maintenance.
Unlike volumetric expanders, our system is oil-free and there is no metal-to-metal contact in our turbine, ensuring no wear and excellent reliability.
Designed by ENOGIA engineers, the innovative micro turbo expander is at the heart of the system.
Enogia has introduced several breakthrough innovations in reducing energy losses in traditional kinetic turbines by extensively applying Organic Rankine Cycle processes.
These improvements enable the construction of extremely compact turbine expanders with integrated high-speed generators, providing new meaning to the performance and reliability of small expanders.
Unlike volumetric expanders, lubrication is oil-free, and there is no metal-to-metal contact, ensuring the highest MTBF.
Advantages of Enogia ORC
- Hermetic high-speed turbine technology patented by ENOGIA
- Kinetic turbogenerator
- Proven concept on larger volumetric ORC units
- Frictionless, no wear
- Hermetic turbogenerator with PMG generator
- No fluid leakage
- Limited maintenance
- Extremely compact units
- Manufactured in France, exclusively from EU components, assembly in-house
Enogia has the capability to build turbo expanders for various types of working fluids to meet each customer's requirements.
Potential applications include not only the Organic Rankine Cycle but also CO2, natural gas expansion, process gas expansion, and recovery of energy from hot air.
To achieve this, ENOGIA engineers employ state-of-the-art design techniques, including finite element analysis (FEA), computational fluid dynamics (CFD), modal analysis, and strength...
In production, top-quality materials and processes such as CNC milling, and TIG welding performed by top professionals are used.
ORC Product Range 10kWel, 20kWel, 40kWel, 100kWel, 180kWel
Technical Data
Modul 180kWel - SYSTEM COMBINING EFFICIENCY AND RELIABILITY AT LOW TEMPERATURES
The ENO-180LT ORC module capable of recovering up to 2400 kWth and having a nominal output power of 180kWel from low-temperature heat sources. Designed like other LT series ORCs, the ENO-180LT is a turnkey product, stemming from engineering innovations. This system is suitable for a wide range of heat recovery applications, such as biomass boilers, gas engines, geothermal sources, heating or concentrating solar panels. With two kinetic turbines, you can recover any heat flow ranging from 70°C to 120°C. The remaining heat can be redirected to underfloor heating or drying system to achieve a global efficiency close to 95%!
