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Title: Modelling of transient stretched laminar flame speed of hydrogen-air mixtures using combustion kinetics
Authors: Gu, Jiayi
Chen, Rui
Keywords: Laminar flame speed
Hydrogen
Combustion kinetics
Thermodynamic combustion model
Issue Date: 2015
Publisher: © 2014 The Authors / Published by Elsevier
Citation: GU, J. and CHEN, R., 2015. Modelling of transient stretched laminar flame speed of hydrogen-air mixtures using combustion kinetics. Energy Procedia, 66, pp.137-140.
Abstract: The calculations of laminar burning velocity are mostly based on empirical correlations obtained from combustion bomb experiments. There is a noticeable scarcity of the fitting parameters in these correlations, especially under increased temperature and pressure conditions. The effects of flame stretch and instabilities further complicate the situation as these effects are not distinguished in some correlations. Furthermore, although combustion products are of great interests in recent computer simulations of combustion, it is difficult to integrate combustion chemistry into the existing correlations. This paper discusses a laminar burning velocity model for hydrogen-air mixtures in a constant volume combustion bomb. The model is based on a one-dimensional three-zone thermodynamic model that calculates the mass transfer and diffusion and the heat transfer between zones. The chemical process involved in the combustion is solved by an in-house chemical kinetics solver with an established reduced hydrogen-oxidation mechanism from literature. The effects of flame stretch and instabilities are simulated using existing experimental data. The calculated laminar burning velocities are compared to existing empirical correlations and experimental data obtained from constant volume combustion bomb tests. The model is able to simulate laminar burning velocities and have the potential to be integrated into IC engine models in the future.
Description: This is an Open Access paper, published by Elsevier under the the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. This paper was originally presented at the 12th International Conference on Combustion & Energy Utilisation, Lancaster, UK, 29th September - 3rd October 2014.
Version: Published
DOI: 10.1016/j.egypro.2015.02.077
URI: https://dspace.lboro.ac.uk/2134/19243
Publisher Link: http://dx.doi.org/10.1016/j.egypro.2015.02.077
ISSN: 1876-6102
Appears in Collections:Conference Papers and Presentations (Aeronautical and Automotive Engineering)

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