Combustion characteristics of H2/N2 and H2/CO syngas nonpremixed flames
Combustion characteristics of H2/N2 and H2/CO syngas nonpremixed flames
Turbulent nonpremixed hydrogen/nitrogen and hygrogen/carbon monoxide syngas flames were simulated using 3D large eddy simulations coupled with a laminar flamelet combustion model. Four different syngas fuel mixtures varying from hydrogen-rich to carbon monoxide-rich including nitrogen 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 subgrid 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 hydrogen-rich flames. Results show significant differences in both unsteady and steady flame temperature and major combustion products depending on the ratio of hydrogen/nitrogen and hygrogen/carbon monoxide in syngas fuel mixture.
syngas, hydrogen, carbon monoxide, nitrogen, les, flamelet model
16186-16200
Ranga Dinesh, K.K.J.
6454b22c-f505-40f9-8ad4-a1168e8f87cd
Jiang, X.
008a11fa-f330-4355-b5c6-2878d1ab0f5c
Kirkpatrick, M.P.
cf76adda-898f-472d-a93a-c55d29b06fba
Malalasekera, W.
d3bc4153-1af3-41ab-9e42-4aa0d7cbaec7
November 2012
Ranga Dinesh, K.K.J.
6454b22c-f505-40f9-8ad4-a1168e8f87cd
Jiang, X.
008a11fa-f330-4355-b5c6-2878d1ab0f5c
Kirkpatrick, M.P.
cf76adda-898f-472d-a93a-c55d29b06fba
Malalasekera, W.
d3bc4153-1af3-41ab-9e42-4aa0d7cbaec7
Ranga Dinesh, K.K.J., Jiang, X., Kirkpatrick, M.P. and Malalasekera, W.
(2012)
Combustion characteristics of H2/N2 and H2/CO syngas nonpremixed flames.
[in special issue: Advances in Hydrogen Production (Selected papers from ICH2P-2011)]
International Journal of Hydrogen Energy, 37 (21), .
(doi:10.1016/j.ijhydene.2012.08.027).
Abstract
Turbulent nonpremixed hydrogen/nitrogen and hygrogen/carbon monoxide syngas flames were simulated using 3D large eddy simulations coupled with a laminar flamelet combustion model. Four different syngas fuel mixtures varying from hydrogen-rich to carbon monoxide-rich including nitrogen 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 subgrid 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 hydrogen-rich flames. Results show significant differences in both unsteady and steady flame temperature and major combustion products depending on the ratio of hydrogen/nitrogen and hygrogen/carbon monoxide in syngas fuel mixture.
Text
HE2_2012.doc
- Author's Original
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Published date: November 2012
Keywords:
syngas, hydrogen, carbon monoxide, nitrogen, les, flamelet model
Organisations:
Engineering Science Unit
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Local EPrints ID: 347365
URI: http://eprints.soton.ac.uk/id/eprint/347365
ISSN: 0360-3199
PURE UUID: 08412d8d-0fcd-4b13-ba86-4c50fd65638b
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Date deposited: 24 Jan 2013 16:53
Last modified: 15 Mar 2024 03:46
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Author:
X. Jiang
Author:
M.P. Kirkpatrick
Author:
W. Malalasekera
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