Effect of Pressure on Local Flame Propagation Characteristics of Hydrogen-Rich Syngas Turbulent Premixed Flame
Publication: Journal of Energy Engineering
Volume 149, Issue 5
Abstract
As a clean fuel with low carbon emissions, hydrogen-rich syngas has higher flame propagation speed and higher adiabatic flame temperature than other gaseous fuels, so its local flame propagation characteristics are also different from other fuels. In this paper, an experimental study on the hydrogen-rich syngas turbulent premixed flame was carried out at different pressures [101–303 kPa (1.0–3.0 bar)] when the hydrogen fraction was 65%, the fan speed was (rpm), and the equivalence ratio was 1.0. The results show that with the propagation of the flame or the increase in pressure, the fluctuation amplitude of flame local radius and flame local pulsation radius becomes smaller. Similarly, the flame local propagation speed increases with the increase of pressure. By analyzing the correlation between the turbulent premixed flame front structure and the turbulent premixed flame propagation process in hydrogen-rich syngas, it is found that when the pressure increases, the correlation between the flame local pulsation propagation speed and the flame local pulsation radius weakens.
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Data Availability Statement
All data, models, and code generated or used during the study appear in the published article.
Acknowledgments
This work is supported by the Fundamental Research Funds for the Central Universities (No. 2022YJS084) and the National Natural Science Foundation of China (No. 51706014).
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Information
Published In
Journal of Energy Engineering
Volume 149 • Issue 5 • October 2023
Copyright
© 2023 American Society of Civil Engineers.
History
Received: Mar 1, 2023
Accepted: Jun 4, 2023
Published online: Jul 24, 2023
Published in print: Oct 1, 2023
Discussion open until: Dec 24, 2023
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