Doctoral theses

An emerging approach is expected to change the way of designing and assessing future mobility of people and goods. Whether it will be more electrified, connected, automated, digitalized or not, it will depend on which targets we aim to reach at given time horizons: environmental, economic, societal, etc.

To meet environmental objectives, one of the main levers is the electrification of the vehicle fleet. This will lead to a sharp increase in the production of Li-ion batteries over the next decade. For environmental and geostrategic reasons, recycling of these batteries in Europe will have to be implemented.

Following the rapid emergence of electric vehicles on the automotive market, manufacturers are seeking to regularly improve the performance of their products in order to stand out from the competition.

CFD simulations are currently used for the design and optimization of propulsion and industrial devices involving chemically reactive flows. They facilitate the research of new solutions that allows to reduce CO2 and pollutant emissions.

An appealing way to improve lignocellulosic enzyme cocktails, mostly produced by the filamentous fungus Trichoderma reesei is its complementation with new enzymes retrieved from biodiversity.

Since the emergence of the electric power generation industry, the proper expansion of electricity mix is an essential part of the sustainable development.

In the context of combatting climate change, hydrogen can play a key role as an energy vector in diminishing CO2 emissions if produced from renewable sources. For its storage, one viable option is to store hydrogen under high-pressure, high-strength vessels in its molecular (H2) form.

To meet environmental commitments, France must regularly limit its greenhouse gas emissions to achieve carbon neutrality by 2050. For this purpose, the implementation of the hydrogen chain should allow to make a major contribution to the decarbonation of our heavy transport and industries.

The work targeted in this thesis is part of the current global context of reducing the energy footprint of mobility through innovative techniques.