In the currently reported work, three typical mixtures of H2, CO, CH4, CO2, and N2 have been considered as representative of the producer gas (syngas) coming from biomass gasification. Syngas is being recognized as a viable energy source worldwide, particularly for stationary power generation. However, there are gaps in the fundamental understand of syngas combustion characteristics, especially at elevated pressures that are relevant to practical combustors. In this work, constant volume spherical expanding flames of three typical syngas compositions resulting from biomass gasification have been employed to measure the laminar burning velocities for pressures ranges between 1.0 and 20 bar tanking into account the stretch effect on burning velocity. Over the ranges studied, the burning velocities are fit by a functional form ; and the dependencies of α and β upon the equivalence ratio of mixture are also given. Conclusion can be drawn that the burning velocity decreases with the increase of pressure. In opposite, an increase in temperature induces an increase of the burning velocity. The higher burning velocity value is obtained for downdraft syngas. This result is endorsed to the higher heat value, lower dilution and higher volume percentage of hydrogen in the downdraft syngas.
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September 2011
Research Papers
Measurements of the Laminar Burning Velocities for Typical Syngas–Air Mixtures at Elevated Pressures
Eliseu Monteiro,
Eliseu Monteiro
CITAB,
University of Trás-os-Montes
, Alto Douro, Portugal
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Abel Rouboa
Abel Rouboa
CITAB, University of Trás-os-Montes, Alto Douro, Portugal; CITAB-UTAD/MEAM Department,
e-mail: rouboa@seas.upenn.edu
University of Pennsylvania
, 229 Towne Building, 220 South 33rd Street, Philadelphia, PA-19104-6391
Search for other works by this author on:
Eliseu Monteiro
CITAB,
University of Trás-os-Montes
, Alto Douro, Portugal
Abel Rouboa
CITAB, University of Trás-os-Montes, Alto Douro, Portugal; CITAB-UTAD/MEAM Department,
University of Pennsylvania
, 229 Towne Building, 220 South 33rd Street, Philadelphia, PA-19104-6391e-mail: rouboa@seas.upenn.edu
J. Energy Resour. Technol. Sep 2011, 133(3): 031002 (6 pages)
Published Online: September 6, 2011
Article history
Received:
January 15, 2011
Revised:
June 14, 2011
Online:
September 6, 2011
Published:
September 6, 2011
Citation
Monteiro, E., and Rouboa, A. (September 6, 2011). "Measurements of the Laminar Burning Velocities for Typical Syngas–Air Mixtures at Elevated Pressures." ASME. J. Energy Resour. Technol. September 2011; 133(3): 031002. https://doi.org/10.1115/1.4004607
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