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Towards low-carbon combustion: impact of adding hydrogen to fuel mixtures

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Required Education : Master ou Ecole d'ingénieur
Start date : 1 February 2020
Mission duration : 6 months
Deadline for applications : 31 January 2020
Salary : 650 euros /month

 

Context

Combustion is certainly the most efficient mode of energy production, but with significant counterparts related to non-renewable fossil fuel consumption and the emission of pollutants and greenhouse gases. One of the alternatives considered today as serious is the total or partial replacement of hydrocarbons by hydrogen, the combustion of which has the advantage of producing only water vapor. However, the physicochemical properties of hydrogen, very different from those of hydrocarbons, strongly modify the structures and combustion regimes. It is therefore necessary to characterize these effects in detail, in order to take them into account in the development and design of future combustion chambers fueled, even partially, with hydrogen.

Work program

The objective of the proposed work is to characterize in detail the laminar flame structure, in premix and diffusion regimes, for hydrogen – methane fuel mixtures. This will be done using numerical simulations including detailed chemical kinetics and detailed transport models. The simulations will be carried out with CANTERA and AVBP, the combustion code of CERFACS. Depending on the results, simplified models will be developed.

More specifically, the internship will be as follows:

– Bibliography, training on theoretical and numerical combustion, handling of CANTERA and AVBP
– Evaluation of detailed chemical mechanisms in the literature for CH4 / H2 mixtures compared with measurements available in the literature

– Study of the impact of preferential diffusion on flame structures

– Development and validation of reduced chemical kinetics (with ARCANE software)

– Development and validation of a simplified transport model, or implementation of complex transport in AVBP

Contact

B. Cuenot – cuenot@cerfacs.fr

E. Riber – riber @ cerfacs.fr