PhD Student M/F - Experimental study of hydrogen flames for oxy-combustion with net-zero emissions

13 Feb 2024
Job Information

Organisation/Company

CNRS

Department

Laboratoire d'énergétique moléculaire et macroscopique, combustion

Research Field

Engineering
Chemistry
Physics

Researcher Profile

First Stage Researcher (R1)

Country

France

Application Deadline

4 Mar 2024 - 23:59 (UTC)

Type of Contract

Temporary

Job Status

Full-time

Hours Per Week

35

Offer Starting Date

1 Apr 2024

Is the job funded through the EU Research Framework Programme?

Not funded by an EU programme

Is the Job related to staff position within a Research Infrastructure?

No

Offer Description

Using hydrogen produced by electrolysis from renewable energies will support the climate-neutrality objective in many sectors. In particular, hydrogen combustion is bound to replace fossil fuel in many industrial systems involved with electrical power, steam, or heat generation. However, hydrogen combustion creates many challenges regarding safety, efficiency, and pollutant nitrogen oxides (NOx) emissions. Without any nitrogen, hydrogen oxy-combustion promises net-zero CO2 and net-zero NOx emissions by burning hydrogen with pure oxygen, also generated by electrolysis. The high temperature of such flames can be mitigated with steam dilution, but little is known about the stabilization of such hydrogen oxy-flames. Furthermore, this oxy-combustion leaves a high-temperature and corrosive environment in the combustion chamber, which requires innovative materials.

The HyMaX project
The HyMaX project gathers the CEMHTI, EM2C, and IRCER laboratories and the Air Liquide company. During this project, we will characterize, analyze and model the stabilization and heat transfer in hydrogen oxy-combustion. To sustain the harsh combustor environment, high-performance ceramic-based walls will be designed and tested in an oxy-flame combustor equipped with a co-axial injector. The developed coating will achieve the best compromise in terms of performance, durability, and processability. Flame stabilization above the injector and heat transfer will be studied through experiments and multiphysics simulations. Throughout HyMaX, the most advanced methods, diagnostics, and models will scrutinize the interplay between thermo-radiative properties, heat transfer, and flame stabilization.

The EM2C laboratory (CNRS/INSIS and Université Paris-Saclay/CentraleSupélec http://em2c.centralesupelec.fr/ ), through its high-level academic research on energy and combustion and its applied studies in partnership with leading companies and research centers in the fields of transport and energy, makes a significant contribution to the advancement of knowledge on these critical issues, both for the climate and the environment. To meet these challenges, the laboratory's research activities are organized around three main themes: Combustion, Non-equilibrium Plasmas, Transfer Physics, and a transversal action in Applied Mathematics. You will be integrated into the Combustion axis. As a PhD student (M/F), you will be registered in the SMEMAG doctoral school (ED 579 - Mechanical & Energy Sciences, Materials & Geosciences).. The EM2C Laboratory has around 45 permanent staff (researchers, teacher-researchers & research support staff) and 35 PhD students, post-docs, trainees & visiting professors. The position is located in a sector covered by the Protection of Scientific and Technical Potential (PPST), and therefore requires, in accordance with regulations, that your arrival be authorized by the competent MESR authority.

The EM2C CNRS Laboratory is seeking a highly qualified candidate for a Ph.D. fellowship in the area of experimental combustion and heat transfer. The successful candidate will be supervised by Dr. Clément Mirat, Dr. Christopher Betrancourt and Pr. Ronan Vicquelin to study hydrogen flames in oxy-combustion.
This work combines experiments and modeling to study stabilization of swirled oxy-flames and heat transfer as a function of injection parameters and steam dilution. Measurements based on advanced laser-based optical techniques will be performed on an atmospheric pressure experimental bench with the thermal and environmental barrier coatings developed in the HyMaX project. Physical analysis and comparisons with multi-physics simulations carried out in parallel at the EM2C laboratory will identify the key mechanisms controlling flame stabilisation and wall heat transfer. The research outcomes will be published in the major high-impact international journals.

Requirements

Research Field

Engineering

Education Level

Master Degree or equivalent

Research Field

Chemistry

Education Level

Master Degree or equivalent

Research Field

Physics

Education Level

Master Degree or equivalent

Languages

FRENCH

Level

Basic

Research Field

Engineering

Years of Research Experience

None

Research Field

Chemistry

Years of Research Experience

None

Research Field

Physics

Years of Research Experience

None

Additional Information

Website for additional job details

https://emploi.cnrs.fr/Offres/Doctorant/UPR288-CLEMIR-003/Default.aspx

Work Location(s)

Number of offers available

1

Company/Institute

Laboratoire d'énergétique moléculaire et macroscopique, combustion

Country

France

City

GIF SUR YVETTE

Geofield

Where to apply

Website

https://emploi.cnrs.fr/Candidat/Offre/UPR288-CLEMIR-003/Candidater.aspx

Contact

City

GIF SUR YVETTE

Website

http://em2c.centralesupelec.fr/

STATUS: EXPIRED