PhD position In Chemical Engineering and Chemical Kinetics
il y a 2 semaines
PhD position at ENSTA Paris and IFPEN In Chemical Engineering and Chemical Kinetics
Experimental and Kinetic Modeling Study on the Combustion of NH3/N2/H2/air Mixtures :
In the transition towards low-carbon economies, ammonia constitutes a very promising solution for industrial applications. In particular, the partial cracking of ammonia provides energy-efficient NH3/N2/H2 mixtures that can be used in combustion systems. In this context, the AMHYABLE project aims to develop fuel-flex burners presenting a stable combustion of NH3/N2/H2/air blends over a wide operating range with low pollutant emissions (e.g., NOx, unburnt NH3, and other greenhouse gases), irrespective of the exact nature and proportions of the blends. It aims to address the fundamental challenges related to the combustion of NH3/N2/H2/air mixtures, including combustion chemistry, fundamental combustion properties, pollutant emissions and evolution, combustion in industrial burners, and numerical simulations.
As part of AMHYBLE project, this PhD thesis focus on combustion chemistry of NH3/N2/H2/air mixture, as large uncertainty still remains, for both experiments and modeling. Measurement of fundamental combustion properties, such as laminar flame speed, is still challenging (for example for lean to stoichiometric mixtures), partially due to experimental setup limitations. Large uncertainty is also present in chemical kinetic model, as rate constants of many elementary reactions of NH3-based combustion are still unknown or not-well evaluated, and reaction scheme under industrial burner conditions are less studied. In addition, atmospheric reactivity and reaction schemes of NH3 combustion pollutants are not well studied.
Therefore, this thesis aims to obtain a better understanding on the fundamental combustion properties and combustion chemistry of NH3/N2/H2/air mixtures under industrial conditions. More precisely, we aim to (i) acquire the missing experimental database of laminar flame speed of NH3/N2/H2/air mixtures under industrial conditions using a heat flux burner, and (ii) develop a detailed chemical kinetic mechanism that include both combustion and atmospheric chemistry, such that it can accurately predict not only laminar flame speeds and formation of pollutants during combustion but also aging of the pollutants in atmosphere.
Keywords: Ammonia, Hydrogen, Combustion, Laminar Flame Speed, NOx, Emissions, Pollutants, Heat Flux Burner, Chemical Kinetics, Kinetic modeling, Atmospheric Chemistry
Thesis Director Prof. CATOIRE Laurent, Unité Chimie et Procédés (UCP), ENSTA Paris,
Institut Polytechnique de Paris, laurent.-
Doctoral School ED626 – IP Paris / École Doctorale de l'Institut Polytechnique de Paris,
IFPEN supervisor Dr. XU Boyang,
Dr. MATRAT Mickael,
PhD location ENSTA Paris, Palaiseau, France & IFPEN, Rueil-Malmaison, France
Duration and start date 3 years, starting in late 2025 or early 2026
Academic requirements Master degree in chemical engineering, physical chemistry
Language requirements Fluency in English, willingness to learn French
Other requirements Modeling. Programming. Knowledge in chemical kinetics is a plus.
-
Palaiseau, Île-de-France CEA Temps pleinGeneral information Organisation The French Alternative Energies and Atomic Energy Commission (CEA) is a key player in research, development and innovation in four main areas :• defence and security,• nuclear energy (fission and fusion),• technological research for industry,• fundamental research in the physical sciences and life sciences.Drawing...
-
Palaiseau, Île-de-France CEA Temps pleinGeneral information Organisation The French Alternative Energies and Atomic Energy Commission (CEA) is a key player in research, development and innovation in four main areas :• defence and security,• nuclear energy (fission and fusion),• technological research for industry,• fundamental research in the physical sciences and life sciences.Drawing...
-
Palaiseau, Île-de-France CEA Temps pleinGeneral information Organisation The French Alternative Energies and Atomic Energy Commission (CEA) is a key player in research, development and innovation in four main areas :• defence and security,• nuclear energy (fission and fusion),• technological research for industry,• fundamental research in the physical sciences and life sciences.Drawing...
-
Post-Doctoral Position in Quantum Materials Research H/F
il y a 6 jours
Palaiseau, Île-de-France CEA Temps pleinGeneral information Organisation The French Alternative Energies and Atomic Energy Commission (CEA) is a key player in research, development and innovation in four main areas :• defence and security,• nuclear energy (fission and fusion),• technological research for industry,• fundamental research in the physical sciences and life sciences.Drawing...
-
Internship position H/F
il y a 7 jours
Palaiseau, Île-de-France CEA Temps pleinInformations générales Entité de rattachement Le CEA est un acteur majeur de la recherche, au service des citoyens, de l'économie et de l'Etat.Il apporte des solutions concrètes à leurs besoins dans quatre domaines principaux : transition énergétique, transition numérique, technologies pour la médecine du futur, défense et sécurité sur un...
-
Post-doctoral fellow in model-based reinforcement learning
il y a 7 jours
Palaiseau, Île-de-France CHEManager International Temps pleinWho we are ?Télécom Paris, part of the IMT (Institut Mines-Télécom) and a founding member of the Institut Polytechnique de Paris, is one of France's top 5 general engineering schools.Themainspringof Télécom Paris is to train, imagine and undertake to design digital models, technologies and solutions for a society and economy that respect people and...
-
R&D PROJECT MANAGER
il y a 1 semaine
Palaiseau, Île-de-France Kathie Medical Temps pleinKATHIE MEDICAL SASis a French MedTech startup, incubated at École Polytechnique, developing a new generation of smart medical devices for critical drainage.Our ambition is to transform life-saving procedures that have seen little innovation, by combining advanced engineering, deep clinical insight and breakthrough sensing technologies.We are building...
-
Palaiseau, Île-de-France Inria Temps pleinLe descriptif de l'offre ci-dessous est en AnglaisType de contrat : Convention de stageContrat renouvelable : OuiNiveau de diplôme exigé : Bac + 4 ou équivalentAutre diplôme apprécié : Master level or end of engineering studiesFonction : Stagiaire de la rechercheA propos du centre ou de la direction fonctionnelleThe Inria Saclay Research Centre was...
-
Single-Photon Source Research Scientist
il y a 2 semaines
Palaiseau, Île-de-France Quandela Temps pleinAbout Quandela:Quandela is a European scale-up that provides photonic quantum computers that are modular, scalable, energy-efficient, and accessible both on the cloud and on-premise. Our team of 140 employees specialises in the development of both software and hardware solutions for a variety of quantum applications. We offer a wide range of services: from...
-
Palaiseau, Île-de-France CEA Temps pleinGeneral information Organisation The French Alternative Energies and Atomic Energy Commission (CEA) is a key player in research, development and innovation in four main areas :• defence and security,• nuclear energy (fission and fusion),• technological research for industry,• fundamental research in the physical sciences and life sciences.Drawing...
