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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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:

Edited by:

S. Itoh, J.J. Yoh and K. Hokamoto

Pages:

65-70

DOI:

10.4028/www.scientific.net/MSF.673.65

Citation:

T. M. Vu et al., "Experimental Study in H2/CO/CH4-Air and H2/CO/C3H8-Air Premixed Flames. Part 1: Laminar Burning Velocities and Markstein Lengths", Materials Science Forum, Vol. 673, pp. 65-70, 2011

Online since:

January 2011

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$35.00

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