Effects of slit shapes on the flashback limits of premixed hydrogen slit burners

Fruzza, F., Chu, H., Lamioni, R., Grenga, T., Pitsch, H. and Galletti, C. (2023) Effects of slit shapes on the flashback limits of premixed hydrogen slit burners. Joint Meeting of the Belgian and Italian sections of the Combustion Institute: 45th Meeting of the Italian Section of the Combustion Institute, Auditorium di Sant’Apollonia, Florence, Italy. 28 - 31 May 2023. 6 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

With a growing interest in hydrogen as a clean fuel for providing heat in residential and commercial sectors, the development of new designs for end-user devices is becoming increasingly necessary to ensure both efficiency and safety. In this work, we use 3D simulations to investigate the effects of slit shape and dimensions on the flash back limits for hydrogen premixed flames in perforated burners, typically employed in end-user devices such as condensing boilers. We compute flashback velocities for different slit lengths and widths and analyze the results in terms of the physical mechanisms involved

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Published date: May 2023

Venue - Dates: Joint Meeting of the Belgian and Italian sections of the Combustion Institute: 45th Meeting of the Italian Section of the Combustion Institute, Auditorium di Sant’Apollonia, Florence, Italy, 2023-05-28 - 2023-05-31