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Turbulent burning rates of methane and methane-hydrogen mixtures

Fairweather, M., Ormsby, M.P., Sheppard, C.G.W. and Woolley, R. (2009) Turbulent burning rates of methane and methane-hydrogen mixtures. Combustion and Flame, 156 (4). pp. 780-790. ISSN 00102180

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Abstract

Methane and methane-hydrogen (10%, 20% and 50% hydrogen by volume) mixtures have been ignited in a fan stirred bomb in turbulence and filmed using high speed cine schlieren imaging. Measurements were performed at 0.1 MPa (absolute) and 360 K. A turbulent burning velocity was determined for a range of turbulence velocities and equivalence ratios. Experimental laminar burning velocities and Markstein numbers were also derived. For all fuels the turbulent burning velocity increased with turbulence velocity. The addition of hydrogen generally resulted in increased turbulent and laminar burning velocity and decreased Markstein number. Those flames that were less sensitive to stretch (lower Markstein number) burned faster under turbulent conditions, especially as the turbulence levels were increased, compared to stretch-sensitive (high Markstein number) flames.

Item Type: Article
Copyright, Publisher and Additional Information: Copyright (c) 2009 Elsevier Science B.V., Amsterdam. This is an author produced version of a paper published in ' Combustion and Flame '. Uploaded in accordance with the publisher's self-archiving policy.
Institution: The University of Sheffield, The University of Leeds
Academic Units: The University of Leeds > Faculty of Engineering (Leeds) > School of Mechanical Engineering (Leeds)
The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Mechanical Engineering (Sheffield)
The University of Leeds > Faculty of Engineering (Leeds) > School of Process, Environmental and Materials Engineering (Leeds)
Depositing User: Mr Christopher Hardwick
Date Deposited: 20 Aug 2009 13:26
Last Modified: 08 Feb 2013 17:06
Published Version: http://dx.doi.org/10.1016/j.combustflame.2009.02.0...
Status: Published
Publisher: Elsevier Science B.V., Amsterdam.
Refereed: Yes
Identification Number: 10.1016/j.combustflame.2009.02.001
URI: http://eprints.whiterose.ac.uk/id/eprint/9191

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