Turbulent burning rates of methane and methane–hydrogen mixtures

Fairweather, M.; Ormsby, M. P.; Sheppard, C. G. W.; Woolley, Robert

doi:10.1016/j.combustflame.2009.02.001

Cited by 114 publications

(41 citation statements)

References 26 publications

(52 reference statements)

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“…The experimental data of Fairweather et al [3] was made available in a similar form to that of Bray [17] in that it is presented as a function of the Karlovitz stretch factor, K. Two correlations are proposed [14] for hydrogen content between 0 and 20%, and for a 50% concentration by volume as:…”

Section: Turbulent Burning Velocitymentioning

confidence: 99%

“…The experimental rig was of steel construction and measured 8.25m in length, 3.0m in width, and 2.8m in height. One 3.0  2.8m end of the rig was effectively open to the atmosphere for the purpose of the tests, being covered with a polythene sheet to retain the gas-air mixture prior to ignition.…”

Section: Experimental Workmentioning

confidence: 99%

“…This was effected through use of the results of an analysis [14] of numerous detailed experimental data sets obtained during the complementary burning velocity studies undertaken at the University of Leeds [3].…”

Section: Turbulent Burning Velocitymentioning

confidence: 99%

“…This takes the form of the most recent and comprehensive laminar and turbulent burning velocity measurements for CH 4 -H 2 mixtures [3] evaluated using an experimental explosion bomb [4] at the University of Leeds. These data build upon earlier works [5], and are implemented in the present mathematical model via inclusion in a premixed turbulent flame propagation sub-model in a modified version of an adaptive general-purpose fluid dynamics code referred to as QICA, provided by Mantis Numerics Ltd., and being a development of the earlier COBRA code.…”

Section: Introductionmentioning

confidence: 99%

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Prediction of confined, vented methane-hydrogen explosions using a computational fluid dynamic approach

Woolley

Fairweather

Falle

et al. 2013

International Journal of Hydrogen Energy

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This is a repository copy of Prediction of confined, vented methane-hydrogen explosions using a computational fluid dynamic approach. ReuseUnless indicated otherwise, fulltext items are protected by copyright with all rights reserved. The copyright exception in section 29 of the Copyright, Designs and Patents Act 1988 allows the making of a single copy solely for the purpose of non-commercial research or private study within the limits of fair dealing. The publisher or other rights-holder may allow further reproduction and re-use of this version -refer to the White Rose Research Online record for this item. Where records identify the publisher as the copyright holder, users can verify any specific terms of use on the publisher's website. TakedownIf you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing eprints@whiterose.ac.uk including the URL of the record and the reason for the withdrawal request. ABSTRACTHydrogen is seen as an important energy carrier for the future, with a great benefit being carbon-free emissions at its point of use. A hydrogen transport system between manufacturing sites and end users is required, and one solution proposed is its addition to existing natural gas pipeline networks. A major concern with this approach is that the explosion hazard may be increased, relative to natural gas, should an accidental release occur. This paper describes a mathematical model of confined,

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Section: Turbulent Burning Velocitymentioning

confidence: 99%

Section: Experimental Workmentioning

confidence: 99%

Section: Turbulent Burning Velocitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Prediction of confined, vented methane-hydrogen explosions using a computational fluid dynamic approach

Woolley

Fairweather

Falle

et al. 2013

International Journal of Hydrogen Energy

Self Cite

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“…They attributed this positive correlation to an enhancement in flame surface area due to a hydrodynamic instability induced by the decrease in kinematic viscosity when pressure increases. Fairweather et al [16] studied the influence of hydrogen substitution on sphericallypropagating turbulent flame speed in methane-air mixtures. Turbulent flame speed was found to increase with both increased hydrogen content and increased turbulent intensity.…”

Section: Introductionmentioning

confidence: 99%

Influence of turbulence–kernel interactions on flame development in lean methane/air mixtures under natural gas-fueled engine conditions

Reddy

Abraham

2013

Fuel

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Direct numerical simulations (DNS) with reduced chemistry are carried out to study the influence of flow velocity and length scales on flames developing from flame kernels in lean methane/air mixtures. This study is conducted at elevated temperature and pressure conditions relevant to lean-burn natural gas engines. There are two effects which come into consideration:the interaction of turbulence with the kernel and the interaction with the local flame. A range of scales is selected so that interactions in different regimes can be studied. A flame surface density (FSD) approach is used to determine the evolution of flame area and study how the length and velocity scales enhance or diminish flame development. From the perspective of engine performance, it is observed that shorter length scales lead to faster growth of flame kernels. The ratio of kernel diameter to length scale ratio is identified as an independent controlling variable and its effect is studied by varying the initial size of the flame kernel. Smaller ratios result in a faster increase in the flame area. It is also observed that larger velocity scales lead to higher rates of heat release.

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Global and Local Viewpoints to Analyze Turbulence-Premixed Flame Interaction

Chaudhuri

2017

Combustion for Power Generation and Transportation

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Turbulent burning rates of methane and methane–hydrogen mixtures

Abstract: Published paper

Cited by 114 publications

References 26 publications

Prediction of confined, vented methane-hydrogen explosions using a computational fluid dynamic approach

Prediction of confined, vented methane-hydrogen explosions using a computational fluid dynamic approach

Influence of turbulence–kernel interactions on flame development in lean methane/air mixtures under natural gas-fueled engine conditions

Global and Local Viewpoints to Analyze Turbulence-Premixed Flame Interaction

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