Mechanical engineering

Gaussian processes modeling for floating offshore wind turbine fatigue in wind farm context based on input/output dimension reduction

To support the development of electricity production from wind power, IFP Energies nouvelles is involved in the energy transition as a research and training player, especially in emerging technologies such as floating offshore wind turbines (FOWT). 

Development of a characterization protocol for the thermal runaway phenomenon of Li-ion batteries

The Li-ion battery is the technology currently used by car manufacturers to provide the energy storage required for electrified vehicles. However, these Li-ion batteries can be the source of incidents with potentially dramatic consequences that can have various origins but are grouped under the term thermal runaway. Thus, understanding and controlling thermal runaway is a major issue from a safety and economic point of view for the car industry.

Contribution of high-fidelity fluid-structure coupling to the modelling of new generation wind turbines

Cost reduction strategies for wind energy are leading to the development of increasingly large wind turbines (today nearly 300m for the tallest), located in offshore environments with favorable wind conditions. Compared to smaller models, the blades of these large rotors deform significantly, especially when facing extreme events (high winds, emergency stops). Aeroelastic coupling effects are therefore becoming increasingly critical.

Augmented Large-eddy simulations of an internal combustion engine fueled with hydrogen

Electrification of vehicles and improved efficiency of internal combustion engines (ICE) are the main levers to reduce greenhouse gas emissions. The second priority of the French strategy for the deployment of low-carbon hydrogen is the development of renewable hydrogen for use in fuel cells or for combustion in a spark-ignition engine (SIE). However, for the latter technology, many challenges must be tackled before meeting real driving emissions expectation due to the diversification and complexity of hybrid applications.

Development of a robust adaptive mesh refinement method for Large Eddy Simulations: application to hydrogen deflagrations

 A significant reduction of greenhouse gases emissions is needed to keep global warming at an acceptable level in the next decades. In particular, the decarbonization of the energy and transport sectors is necessary and the use of hydrogen is a plausible solution as its consumption, through combustion processes or in fuel cells, is carbon-free. It may also provide flexibility to systems based on intermittent resources. However, hydrogen is a volatile and highly flammable compound. Its storage and use are associated with high risks of explosions which must be adequately addressed.