Transient near-wall emission characteristics of NH3/H2/N2 flames

Kovaleva, Marina ORCID: https://orcid.org/0000-0002-6516-3658, Gruber, Andrea, Minamoto, Yuki and Hayakawa, Akihiro 2023. Transient near-wall emission characteristics of NH3/H2/N2 flames. Presented at: 2nd Symposium on Ammonia Energy, Orleans, France, 10 - 13 July 2023.

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Abstract

To advance the development of combustion devices that operate on alternative fuels, it is important to clarify near-wall flame behaviour. As the flame and wall mutually interact, the wall acts as a heat and radical sink, with significant implications on pollutant formation, efficiency, and combustor wall durability. However, accurately measuring the propagation of flames toward solid surfaces and characterizing the behaviour of these near-wall quenching flames in a laboratory setting poses considerable challenges. Therefore, the present work explores ammonia/hydrogen/nitrogen flames in a head-on quenching (HOQ) configuration at various wall temperatures and equivalence ratios. This study aims to provide insights into near-wall chemistry, especially transient emissions formation and the underlying transport mechanisms of these species.

Item Type:	Conference or Workshop Item (Paper)
Status:	Unpublished
Schools:	Engineering
Subjects:	T Technology > TJ Mechanical engineering and machinery
Last Modified:	30 Dec 2023 02:30
URI:	https://orca.cardiff.ac.uk/id/eprint/160894

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