Experimental and analytical investigation of the turbulent burning velocity of two-component fuel mixtures of hydrogen, methane and propane

Experimental and analytical investigation of the turbulent burning velocity of two-component fuel mixtures of hydrogen, methane and propane

In this paper, we present some experimental and analytical model results of two-component fuel mixtures of methane, propane and hydrogen. Experimentally obtained turbulent burning velocity S T for outwardly propagating spherical lean turbulent premixed flames is examined with an algebraic flame surf...

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Bibliographic Details
Published in:International journal of hydrogen energy Vol. 34; no. 22; pp. 9258 - 9265
Main Authors: Muppala, S.P.R., Nakahara, M., Aluri, N.K., Kido, H., Wen, J.X., Papalexandris, M.V.
Format: Journal Article
Language:English
Published: Kidlington Elsevier Ltd 01-11-2009
Elsevier
Subjects:
Applied sciences
Combustion
Combustion of gaseous fuels
Combustion. Flame
Computational fluid dynamics
Effective Lewis number
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Fuel mixtures
Lewis numbers
Mathematical analysis
Mathematical models
Methane
Preferential diffusion
Spherical flame
Theoretical studies. Data and constants. Metering
Turbulence
Turbulent burning velocity
Two-component fuel mixture
Spherical flame
Two-component fuel mixture
Turbulent burning velocity
Effective Lewis number
Preferential diffusion
Turbulent flame
Methane
Hydrogen
Premixed flame
Experimental study
Modeling
Combustion velocity
Propane
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Summary:In this paper, we present some experimental and analytical model results of two-component fuel mixtures of methane, propane and hydrogen. Experimentally obtained turbulent burning velocity S T for outwardly propagating spherical lean turbulent premixed flames is examined with an algebraic flame surface wrinkling reaction model using 1) mean local burning velocity, and 2) the critical chemical time scale from the leading edge model by Zel'dovich and Frank-Kamenetskii. Based on the latter approach, the time scale that characterizes the effects of preferential diffusion phenomenon in critically curved spherical flames is incorporated into the reaction model. For this, a proposed simple linear model is used for estimating the effective Lewis number of the two-component fuel (CH 4–H 2 and C 3H 8–H 2)/Air mixtures. In general, both approaches are effective ways in achieving qualitatively consistent S T trends for both mixtures. However, in the second approach, model predictions show large S T deviation especially at high turbulence. This may be attributed to the use of approximate values of activation temperature and for the use of the effective Lewis number of both mixtures based on the simple linear model.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0360-3199
1879-3487
DOI:10.1016/j.ijhydene.2009.09.036