HYCOMBS Project is looking for a Research Fellow : Experimental study of turbulent-combustion interaction for premixed flames of various NH3/H2/CH4/air blends (HYCOMBS Project)
HYCOMBS PROJECT
HYCOMBS: Hydrogen and Ammonia Combustion in Singapore
In the future, Singapore may be importing renewable energy in the form of hydrogen (H2) or ammonia (NH3). These zero-carbon fuels will require the development of new gas turbines (GTs) and internal combustion engines (ICE) used in power generation, aviation, and maritime propulsion.
This project focuses on the combustion fundamentals of hydrogen, ammonia, their blends, and their blends with hydrocarbon fuels. The knowledge acquired in HYCOMBS will enable the penetration of zero-carbon fuels in the Singapore energy system and this will benefit Singaporean industries and residents.
Read more about the HYCOMBS project here.
DESCRIPTION
In the WP2 of HYCOMBS project, the objective is to improve the knowledge and understanding of flames with non-conventional fuels to improve CFD model. Turbulent-combustion interaction for NH3/air, NH3/CH4/air, NH3/H2/air mixtures remains not well understood and few data are currently available [1-3].
The objective of this post-doc position is to provide accurate experimental data base highly resolved in space and time to study the fundamental of combustion using various NH3, H2 and CH4 blends and to help CFD model development. These tests will be conducted in a spherical combustion chamber with isotropic and homogeneous turbulence at different initial thermodynamics conditions, i.e. temperature and pressure with different types of mixture [4]. In a first part several optical diagnostics will be implemented and evaluated in order to deeply study flame propagation and flame/turbulence interactions such as: PIV, 3D Mie-Scattering tomography as in [5], OH* PLIF, etc. Main part of the work will consist of the data analysis to characterize the interaction. The database will be done and discussed with the others partners of fundamental combustion tasks, and especially CARES team.
Reference
1) Lhuillier, P. Brequigny, F. Contino, C. Rousselle, Experimental investigation on ammonia combustion behavior in a spark-ignition engine by means of laminar and turbulent expanding flames, to appear, Proceedings of the Combustion Institute 2020
2) Qingshuang Fan, Xin Liu, Leilei Xu, Arman Ahamed Subash, Christian Brackmann, Marcus Aldén, Xue-Song Bai, Zhongshan Li, Flame structure and burning velocity of ammonia/air turbulent premixed flames at high Karlovitz number conditions, Combustion and Flame, Volume 238, 2022,
3) Jian-Bin Cao, Jun-Qiang Ma, Guo-Xiu Li, Hong-Meng Li, and Rong-Pei Jiang, Energy & Fuels 2024 38 (18), 17965-17977 DOI: 10.1021/acs.energyfuels.4c02942
4) Seif Zitouni, Pierre Brequigny, Christine Mounaїm-Rousselle, Turbulent flame speed and morphology of pure ammonia flames and blends with methane or hydrogen, Proceedings of the Combustion Institute, Volume 39, Issue 2, 2023, Pages 2269-2278,
5) Pervez Ahmed, Benjamin Thorne, Malcolm Lawes, Simone Hochgreb, Girish V. Nivarti, R. Stewart Cant, Three dimensional measurements of surface areas and burning velocities of turbulent spherical flames, Combustion and Flame, Volume 233, 2021, 111586,
EXPERIENCE & QUALIFICATIONS
Ph.D. in mechanical engineering
Skills:
- Experience of designing and implementing experimental methods, with fundamental knowledge in fluid mechanics, premixed combustion, turbulence
- strong experience with optical diagnostics
- strong experience in matlab tools to develop accurate post-processing
- oral and written communication to report to the partners and for conferences and peer-review journal.
FURTHER INFORMATION & CONTACT
Salary range: SGD 6,900 – SGD 10,000 (depending on suitability and experience)
Start January 2025
Duration: 18 months
Workplace address: The applicant will be a CNRS@CREATE appointee (CREATE Campus, CREATE Tower, 1 Create Way #08-01 Singapore 138602), and work on CREATE Campus, + some stays will be in Orléans France, Laboratoire PRISME
Interested applicants please contact: Pr. Christine MOUNAÏM-ROUSSELLE, [email protected]
Subject template for application by email:
HYCOMBS – Position – Name of the offer. Documents: CV and a recommendation letter to be sent directly by the candidate to the supervisors.
