Description du projet
Les centrales à combustibles fossiles s’adaptent à l’intégration des énergies renouvelables
Les centrales électriques à combustibles fossiles actuelles ont été conçues pour fournir une puissance constante et stable. La part toujours croissante des énergies renouvelables contraint ces centrales à s’adapter afin de fournir une alimentation de secours fluctuante et assurer la stabilité du réseau. Le projet sCO2-Flex, financé par l’UE, relèvera ce défi en développant et en validant un cycle de Brayton évolutif de 25 MWe utilisant du CO2 supercritique, ce qui augmentera la flexibilité opérationnelle et l’efficacité des centrales électriques au charbon et au lignite. Les chercheurs s’efforceront d’optimiser la conception et les composants afin de mieux répondre à l’évolution des besoins en énergie, de permettre des ajustements plus rapides de la production d’énergie et de réduire au minimum les effets néfastes sur l’environnement tout en augmentant la rentabilité. En amenant le cycle du CO2 supercritique au niveau de maturité technologique 6 (TRL6), sCO2-Flex ouvre la voie à de futurs projets de démonstration et à la commercialisation de la technologie.
Objectif
Current fossil-fuel power plants have been designed to operate in base-load conditions, i.e to provide a constant power output. However, their role is changing, due to the growing share of renewables, both in and outside the EU. Fossil-fuel plants will increasingly be expected to provide fluctuating back-up power, to foster the integration of intermittent renewable energy sources and to provide stability to the grid. However, these plants are not fit to undergo power output fluctuations.
In this context, sCO2-Flex consortium addressees this challenge by developing and validating (at simulation level the global cycle and at relevant environment boiler, heat exchanger(HX) and turbomachinery) the scalable/modular design of a 25MWe Brayton cycle using supercritical CO2, able to increase the operational flexibility and the efficiency of existing and future coal and lignite power plants.
sCO2-Flex will develop and optimize the design of a 25MWe sCO2 Brayton cycle and of its main components (boiler, HX, turbomachinery, instrumentation and control strategies) able to meet long-term flexibility requirements, enabling entire load range optimization with fast load changes, fast start-ups and shut-downs, while reducing environmental impacts and focusing on cost-effectiveness. The project, bringing the sCO2 cycle to TRL6, will pave the way to future demonstration projects (from 2020) and to commercialization of the technology (from 2025). Ambitious exploitation and dissemination activities will be set up to ensure proper market uptake.
Consortium brings together ten partners, i.e academics (experts in thermodynamic cycle/control/simulation, heat exchanging, thermoelectric power, materials), technology providers (HX, Turbomachinery) and power plant operator (EDF-coordinator) covering the whole value chain, constituting an interdisciplinary group of experienced partners, each of them providing its specific expertise and contributing to the achievement of the project’s objectives.
Champ scientifique
- engineering and technologyenvironmental engineeringenergy and fuelsrenewable energy
- engineering and technologyenvironmental engineeringenergy and fuelsfossil energycoal
- engineering and technologymaterials engineeringcoating and films
- engineering and technologymechanical engineeringvehicle engineeringaerospace engineeringaeronautical engineering
Mots‑clés
Programme(s)
Régime de financement
RIA - Research and Innovation actionCoordinateur
75008 Paris
France