Mira, Daniel and Both, A. and Lehmkuhl, O. and Gomez, S. and Forck, J. and Tanneberger, Tom and Stathopoulos, Panagiotis and Paschereit, C. (2021) High-fidelity simulations of the mixing and combustion of a technically premixed hydrogen flame. European Combustion Meeting, Online Event.
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Abstract
Numerical simulations are used here to obtain further understanding on the flashback mechanism of a technically premixed hydrogen flame operated in lean conditions. Recent work from the authors (Mira et al., 2020) showed that the hydrogen momentum strongly influences the flame dynamics and plays a fundamental role on the stability limits of the combustor. The axial injection influences the vortex breakdown position and therefore, the propensity of the burner to produce flashback. This work is an extension of our previous work where we include a detailed description of the mixing process and the influence of equivalence ratio fluctuations and heat loss on the flame dynamics.
Item URL in elib: | https://elib.dlr.de/147778/ | ||||||||||||||||||||||||||||||||||||
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Document Type: | Conference or Workshop Item (Speech) | ||||||||||||||||||||||||||||||||||||
Title: | High-fidelity simulations of the mixing and combustion of a technically premixed hydrogen flame | ||||||||||||||||||||||||||||||||||||
Authors: |
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Date: | 17 December 2021 | ||||||||||||||||||||||||||||||||||||
Refereed publication: | No | ||||||||||||||||||||||||||||||||||||
Open Access: | Yes | ||||||||||||||||||||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||||||||||||||||||||
In SCOPUS: | No | ||||||||||||||||||||||||||||||||||||
In ISI Web of Science: | No | ||||||||||||||||||||||||||||||||||||
Status: | Published | ||||||||||||||||||||||||||||||||||||
Keywords: | hydrogen, turbulent flame, large-eddy simulations, flamelets | ||||||||||||||||||||||||||||||||||||
Event Title: | European Combustion Meeting | ||||||||||||||||||||||||||||||||||||
Event Location: | Online Event | ||||||||||||||||||||||||||||||||||||
Event Type: | international Conference | ||||||||||||||||||||||||||||||||||||
HGF - Research field: | Energy | ||||||||||||||||||||||||||||||||||||
HGF - Program: | Materials and Technologies for the Energy Transition | ||||||||||||||||||||||||||||||||||||
HGF - Program Themes: | High-Temperature Thermal Technologies | ||||||||||||||||||||||||||||||||||||
DLR - Research area: | Energy | ||||||||||||||||||||||||||||||||||||
DLR - Program: | E VS - Combustion Systems | ||||||||||||||||||||||||||||||||||||
DLR - Research theme (Project): | E - Combustion and Power Plant Systems | ||||||||||||||||||||||||||||||||||||
Location: | Cottbus | ||||||||||||||||||||||||||||||||||||
Institutes and Institutions: | Institute of Low-Carbon Industrial Processes | ||||||||||||||||||||||||||||||||||||
Deposited By: | Stathopoulos, Panagiotis | ||||||||||||||||||||||||||||||||||||
Deposited On: | 17 Dec 2021 17:10 | ||||||||||||||||||||||||||||||||||||
Last Modified: | 17 Dec 2021 17:10 |
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