The determination of the features of the process of mixture formation of hydrogen burner
DOI:
https://doi.org/10.15587/1729-4061.2024.302892Keywords:
hydrogen fuel, hydrogen burner, burner consumption, mixture formation, heat production, nitrogen oxidesAbstract
The use of hydrogen fuel as an alternative source of individual heat supply is a rather promising direction in the development of thermal energy. However, due to the physical properties of hydrogen and the peculiarities of its combustion, several problems arise for the practical use of hydrogen heat generators. Such problems include ensuring flare stability and large emissions of thermal nitrogen oxides (NOX). For stable operation of the hydrogen burner, safe operation, and reduction of nitrogen oxide emissions when burning hydrogen, first, it is necessary to ensure high-quality pre-mixing with air.
This work presents the first stage of research into the operation of a hydrogen burner for heat production in the Flow Simulation module of the SolidWorks software environment. For volume flow rates of air and hydrogen corresponding to capacities of 1, 1.5 and 2 kW and air excess coefficient α=1.6. The given design makes it possible to ensure uniform mixture formation (the volume fraction of hydrogen is approximately 18.5 % at the outlet cross-section of the burner and the speed at the outlet of the burner is 5.4, 8.1, and 10.8 m/s, respectively. The burner is a nozzle with a short premixing chamber First, hydrogen is supplied for mixing into the air flow through symmetrically located holes. After that, a vortex is created, which ensures high-quality mixing of gases with a short length of the burner, as well as a uniform distribution of velocity at the exit.
The obtained results allow to proceed to the next stage – the study of hydrogen combustion processes in the combustion chamber of the contact heat generator, which would ensure the formation of a stable flame and low NOX emissions. In addition, this design can be used in the development of hydrogen burners for heating boilers to meet the needs of private homes and small businesses
References
- Pro skhvalennia Enerhetychnoi stratehiyi Ukrainy na period do 2050 roku. Rozporiadzhennia Kabinetu Ministriv UkrainyNo. 373-r. 21.11.2023. Available at: https://zakon.rada.gov.ua/laws/show/373-2023-%D1%80#Text
- Skorokhod, B., Solonin, Y. (Ed.) (2015). Hydrogen in alternative energy and the latest technologies. Kyiv: "KIM", 294.
- Varlamov, G. B., Mitchenko, I. O., Jianguo, J., Weijie, Z., Zongyan, W. (2023). Modern technologies for increasing the energy and environmental efficiency of energy production. Power engineering: Economics, Technique, Ecology, 3. https://doi.org/10.20535/1813-5420.3.2022.271992
- Alekseev, V. A., Christensen, M., Konnov, A. A. (2015). The effect of temperature on the adiabatic burning velocities of diluted hydrogen flames: A kinetic study using an updated mechanism. Combustion and Flame, 162 (5), 1884–1898. https://doi.org/10.1016/j.combustflame.2014.12.009
- Pareja, J., Burbano, H. J., Ogami, Y. (2010). Measurements of the laminar burning velocity of hydrogen-air premixed flames. International Journal of Hydrogen Energy, 35 (4), 1812–1818. https://doi.org/10.1016/j.ijhydene.2009.12.031
- Ravi, S., Petersen, E. L. (2012). Laminar flame speed correlations for pure-hydrogen and high-hydrogen content syngas blends with various diluents. International Journal of Hydrogen Energy, 37 (24), 19177–19189. https://doi.org/10.1016/j.ijhydene.2012.09.086
- Berger, L., Kleinheinz, K., Attili, A., Pitsch, H. (2019). Characteristic patterns of thermodiffusively unstable premixed lean hydrogen flames. Proceedings of the Combustion Institute, 37 (2), 1879–1886. https://doi.org/10.1016/j.proci.2018.06.072
- Syred, N., Abdulsada, M., Griffiths, A., O’Doherty, T., Bowen, P. (2012). The effect of hydrogen containing fuel blends upon flashback in swirl burners. Applied Energy, 89 (1), 106–110. https://doi.org/10.1016/j.apenergy.2011.01.057
- Dutka, M., Ditaranto, M., Løvås, T. (2016). NOx emissions and turbulent flow field in a partially premixed bluff body burner with CH4 and H2 fuels. International Journal of Hydrogen Energy, 41 (28), 12397–12410. https://doi.org/10.1016/j.ijhydene.2016.05.154
- Aniello, A., Poinsot, T., Selle, L., Schuller, T. (2022). Hydrogen substitution of natural-gas in premixed burners and implications for blow-off and flashback limits. International Journal of Hydrogen Energy, 47 (77), 33067–33081. https://doi.org/10.1016/j.ijhydene.2022.07.066
- Skottene, M., Rian, K. E. (2007). A study of NOxNOx formation in hydrogen flames. International Journal of Hydrogen Energy, 32 (15), 3572–3585. https://doi.org/10.1016/j.ijhydene.2007.02.038
- Durocher, A., Meulemans, M., Versailles, P., Bourque, G., Bergthorson, J. M. (2021). Back to basics – NO concentration measurements in atmospheric lean-to-rich, low-temperature, premixed hydrogen–air flames diluted with argon. Proceedings of the Combustion Institute, 38 (2), 2093–2100. https://doi.org/10.1016/j.proci.2020.06.124
- Purohit, A. L., Nalbandyan, A., Malte, P. C., Novosselov, I. V. (2021). NNH mechanism in low-NOx hydrogen combustion: Experimental and numerical analysis of formation pathways. Fuel, 292, 120186. https://doi.org/10.1016/j.fuel.2021.120186
- Schmidt, N., Müller, M., Preuster, P., Zigan, L., Wasserscheid, P., Will, S. (2023). Development and characterization of a low-NOx partially premixed hydrogen burner using numerical simulation and flame diagnostics. International Journal of Hydrogen Energy, 48 (41), 15709–15721. https://doi.org/10.1016/j.ijhydene.2023.01.012
- Haynes, W. M., Lide, D. R., Bruno, T. J. (Eds.) (2016). CRC Handbook of Chemistry and Physics. CRC Press. https://doi.org/10.1201/9781315380476
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2024 Kateryna Romanova, Ivan Mitchenko
This work is licensed under a Creative Commons Attribution 4.0 International License.
The consolidation and conditions for the transfer of copyright (identification of authorship) is carried out in the License Agreement. In particular, the authors reserve the right to the authorship of their manuscript and transfer the first publication of this work to the journal under the terms of the Creative Commons CC BY license. At the same time, they have the right to conclude on their own additional agreements concerning the non-exclusive distribution of the work in the form in which it was published by this journal, but provided that the link to the first publication of the article in this journal is preserved.
A license agreement is a document in which the author warrants that he/she owns all copyright for the work (manuscript, article, etc.).
The authors, signing the License Agreement with TECHNOLOGY CENTER PC, have all rights to the further use of their work, provided that they link to our edition in which the work was published.
According to the terms of the License Agreement, the Publisher TECHNOLOGY CENTER PC does not take away your copyrights and receives permission from the authors to use and dissemination of the publication through the world's scientific resources (own electronic resources, scientometric databases, repositories, libraries, etc.).
In the absence of a signed License Agreement or in the absence of this agreement of identifiers allowing to identify the identity of the author, the editors have no right to work with the manuscript.
It is important to remember that there is another type of agreement between authors and publishers – when copyright is transferred from the authors to the publisher. In this case, the authors lose ownership of their work and may not use it in any way.