In this talk, we will describe the system development approach followed by researchers and engineers of the team NAIST-RITS-Panasonic (Japan) for our participation in international robotics competitions such as the Future Convenience Store Challenge (2018 to 2022).

Gas-liquid membrane contactor (GLMC) uses hydrophobic porous membrane to separate gaseous feed and liquid absorbent is one of the cost-effective post-combustion carbon capture technologies due to its excellent selectivity and lower energy requirement. Unfortunately, GLMC suffers from membrane wetting, toxic amine usage and energy- intensive solvent regeneration process.

The use of detailed chemistry is becoming an essential requirement in CFD simulations of complex reacting flows, such as the Moderate or Intense Low-oxygen Dilution (MILD) combustion regime. However, detailed kinetics mechanisms often require to solve hundreds of ordinary differential equations per computational cell, causing the need for massive computational resources.

Natural circulation is a key issue in the design of chemical plants and nuclear power stations for simplicity, inherent safety, and maintenance reduction features. Those natural circulation systems are susceptible to flow instability, science the driving force of circulation is sensitive to momentum and energy balances.

Wall-modeling in LES is of high importance to allow the scale-resolving simulation of industrial-scale applications. Numerous models were developed and validated for incompressible flows, including a simple quasi-analytical model based on the Reichardt formula. This work presents a new scaling of this formula to properly take the compressibility effects into account.

Many countries worldwide are developing energy strategies to reduce reliance on fossil fuels and cut CO2 emissions to avoid the worst effects of climate change. Most models we use to support this decision-making process rely on very uncertain long-term forecasts for important parameters, such as fuel prices and energy demand.

For the degree of Doctor of Engineering Sciences and Technology In the current climate crisis, CO2 capture and utilization appears to be essential in achieving the climate targets and promoting the transition towards a society entirely relying on renewable energies. Among the alternatives, CO2 can be utilized as sodium bicarbonate salts, NaHCO3.

What do two ice cubes, a cracked wall and a car accident have in common? Mechanics is made of material but also immaterial movements. This is the case of the propagation of a crack or a solidification front. These movements are carried out without mass.

Pour l'obtention du grade de Docteur en sciences de l'ingénieur et technologie La gazéification est un procédé de conversion thermochimique de la biomasse utilisée dans des applications de production de chaleur et d’électricité. Ce procédé est prometteur dans un environnement ouest africain où les besoins énergétiques sont importants et où le potentiel en biomasse est considérable.