Monitoring the Combustion Characteristic of Premixed Burners with Flame Ionization Current
Publication: Journal of Energy Engineering
Volume 147, Issue 4
Abstract
Fully premixed burners are widely used in the field of gas boilers, and the excess air rate is a crucial parameter to control. In this paper, a low-cost solution for monitoring the excess air rate based on the flame ionization current is applied to premixed burners. The ion signal measurement system is independently developed by the authors’ research group to convert a weak ion signal into a measurable detection voltage. The detection voltage of the metal fiber (MF) and stainless steel (SS) are compared. When the excess air rate is in the range of 1.1–1.5, the detection voltage of the MF and SS burner decreases from 1.914 to and to . Moreover, the function is established because both of them have a strong linear relationship. Based on Class 5 of emissions (with a minimum value of 40 ppm) with respect to the European norm (EN 677), the detection voltage of the MF and SS burner is lower than 1.810 and , as the heat load is , respectively.
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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 research was funded by the Science and Technology Plans of the Ministry of Housing and Urban-Rural Development of the People’s Republic of China and the Opening Projects of Beijing Advanced Innovation Center for Future Urban Design, Beijing University of Civil Engineering and Architecture (the design and study of the cold and hot energy supply system for buildings with gas as the sources of energy, UDC2017031012).
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Published In
Journal of Energy Engineering
Volume 147 • Issue 4 • August 2021
Copyright
© 2021 American Society of Civil Engineers.
History
Received: Oct 7, 2020
Accepted: Jan 5, 2021
Published online: May 6, 2021
Published in print: Aug 1, 2021
Discussion open until: Oct 6, 2021
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