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Combustion characteristics of H 2/N 2 and H 2/CO syngas nonpremixed flames

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journal contribution
posted on 11.10.2012, 13:37 by K.K.J. Ranga-Dinesh, X. Jiang, M.P. Kirkpatrick, Weeratunge Malalasekera
Turbulent nonpremixed H2/N2 and H2/CO syngas flames were simulated using 3D large eddy simulations coupled with a laminar flamelet combustion model. Four different syngas fuel mixtures varying from H2-rich to CO-rich including N2 have been modelled. The computations solved the Large Eddy Simulation governing equations on a structured non-uniform Cartesian grid using the finite volume method, where the Smagorinsky eddy viscosity model with the localised dynamic procedure is used to model the sub-grid scale turbulence. Non-premixed combustion has been incorporated using the steady laminar flamelet model. Both instantaneous and time-averaged quantities are analysed and data were also compared to experimental data for one of the four H2-rich flames. Results show significant differences in both unsteady and steady flame temperature and major combustion products depending on the ratio of H2/N2 and H2/CO in syngas fuel mixture.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Citation

RANGA-DINESH, K.K.J. ... et al., 2012. Combustion characteristics of H 2/N 2 and H 2/CO syngas nonpremixed flames. International Journal of Hydrogen Energy, 37 (21), pp. 16186–16200.

Publisher

© Hydrogen Energy Publications, LLC. Published by Elsevier Ltd.

Version

AM (Accepted Manuscript)

Publication date

2012

Notes

This article was published in the journal, International Journal of Hydrogen Energy [© Hydrogen Energy Publications, LLC. Published by Elsevier Ltd.] and the definitive version is available at: http://dx.doi.org/10.1016/j.ijhydene.2012.08.027

ISSN

0360-3199

Language

en

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