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Dr. Xinyi Chen

Working area(s)

Hydrogen and ammonia combustion: fundamentals of flame structures

Contact

Work L1|01 288
Otto-Berndt-Str. 2
64287 Darmstadt

Links

  • Ignition in premixed and non-premixed gas: ignition under extreme conditions (e.g. large Lewis number, reduced pressure), ignition in complex flow conditions (e.g. turbulence, imposed flow), ignition with complex chemistry (e.g. low/intermediate-temperature chemistry).
  • Heat release rate markers for blending fuels.
  • Combustion characteristics of fuels towards zero carbons, such as hydrogen-methane and hydrogen-ammonia mixtures.
This figure illustrates the non-monotonic effect of imposed flow on forced ignition in laminar premixed hydrogen/air mixtures at reduced pressure. On one hand, the imposed flow blows the flame kernel away from the cold electrodes, reducing the heat loss to the electrodes and modifying the flame kernel into a shape with a larger initial radius, thus facilitating ignition. On the other hand, flow always increases the dissipation rate of the spark energy. This dissipative mechanism works against the facilitating mechanism, causing the non-monotonic behaviour.
This figure illustrates the non-monotonic effect of imposed flow on forced ignition in laminar premixed hydrogen/air mixtures at reduced pressure. On one hand, the imposed flow blows the flame kernel away from the cold electrodes, reducing the heat loss to the electrodes and modifying the flame kernel into a shape with a larger initial radius, thus facilitating ignition. On the other hand, flow always increases the dissipation rate of the spark energy. This dissipative mechanism works against the facilitating mechanism, causing the non-monotonic behaviour.
  • Direct Numerical Simulations
  • Large Eddy Simulations
  • Data analysis and visualization

All publications are listed in the publication list:

Publications

Please note:

The integrated database, TUbiblio of TU Darmstadt, is currently being revised, which is why the author's complete publication list can currently only be accessed though the links above.