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HomeMaterials Science ForumMaterials Science Forum Vol. 673Experimental Study in H2/CO/CH4-Air and...

Experimental Study in H₂/CO/CH₄-Air and H₂/CO/C₃H₈-Air Premixed Flames. Part 1: Laminar Burning Velocities and Markstein Lengths

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Abstract:

Flame propagation characteristics of hydrogen/carbon monoxide/methane (or propane)–air premixed mixtures were studied in a constant pressure combustion chamber with a schlieren system at room temperature and elevated pressures. Unstretched laminar burning velocities and Markstein lengths of various mixtures were obtained by analyzing high-speed schlieren images. Also, the experimentally measured unstretched laminar burning velocities were compared with numerical predictions using the PREMIX code with a H2/CO/C1–C4 mechanism, USC Mech II, developed by Wang et al. [23]. The two data from experiments and predictions show good agreement. The results indicate a significant increase in the unstretched laminar burning velocities with hydrogen enrichment and a decrease with the addition of hydrocarbons, whereas the opposite effects for the Markstein lengths were observed.

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Periodical:

Materials Science Forum (Volume 673)

Pages:

65-70

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.673.65

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Online since:

January 2011

Authors:

Tran Manh Vu, Jeong Park, Jeong Soo Kim, Oh Boong Kwon, Jin Han Yun, Sang In Keel

Keywords:

Hydrocarbon, Hydrogen, Laminar Burning Velocity, Markstein Length, Premixed Flame

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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