Heat release rate markers for premixed combustion
Nikolaou, Zacharias M
Combustion and Flame
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Nikolaou, Z. M., & Swaminathan, S. (2014). Heat release rate markers for premixed combustion. Combustion and Flame, 161 3073-3084. https://doi.org/10.1016/j.combustflame.2014.05.019
The validity of the commonly used flame marker for heat release rate (HRR) visualization, namely the rate of the reaction OH + CH2O ⇔ HCO + H2O is re-examined. This is done both for methane–air and multi-component fuel–air mixtures for lean and stoichiometric conditions. Two different methods are used to identify HRR correlations, and it is found that HRR correlations vary strongly with stoichiometry. For the methane mixture there exist alternative HRR markers, while for the multi-component fuel flame the above correlation is found to be inadequate. Alternative markers for the HRR visualization are thus proposed and their performance under turbulent conditions is evaluated using DNS data.
Heat release rate imaging, Premixed combustion, Flame markers, Laser diagnostics, Direct numerical simulation, Mild combustion
ZMN and NS acknowledges the funding through the Low Carbon Energy University Alliance Programme supported by Tsinghua University, China. ZMN also likes to acknowledge the educational grant through the A.G. Leventis Foundation. This work made use of the facilities of HECToR, the UK’s national high-performance computing service, which is provided by UoE HPCx Ltd at the University of Edinburgh, Cray Inc. and NAG Ltd., and funded by the Office of Science and Technology through EPSRC’s High End Computing Programme.
External DOI: https://doi.org/10.1016/j.combustflame.2014.05.019
This record's URL: https://www.repository.cam.ac.uk/handle/1810/246785
Attribution 2.0 UK: England & Wales
Licence URL: http://creativecommons.org/licenses/by/2.0/uk/
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