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Ammonia-methane combustion in tangential swirl burners for gas turbine power generation

Valera Medina, Agustin, Marsh, Richard, Runyon, Jon, Pugh, Daniel, Beasley, Paul, Hughes, Timothy and Bowen, Phil 2017. Ammonia-methane combustion in tangential swirl burners for gas turbine power generation. Applied Energy 185 (2) , pp. 1362-1371. 10.1016/j.apenergy.2016.02.073

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Ammonia has been proposed as a potential energy storage medium in the transition towards a low-carbon economy. This paper details experimental results and numerical calculations obtained to progress towards optimisation of fuel injection and fluidic stabilisation in swirl burners with ammonia as the primary fuel. A generic tangential swirl burner has been employed to determine flame stability and emissions produced at different equivalence ratios using ammonia–methane blends. Experiments were performed under atmospheric and medium pressurised conditions using gas analysis and chemiluminescence to quantify emission concentrations and OH production zones respectively. Numerical calculations using GASEQ and CHEMKIN-PRO were performed to complement, compare with and extend experimental findings, hence improving understanding concerning the evolution of species when fuelling on ammonia blends. It is concluded that a fully premixed injection strategy is not appropriate for optimised ammonia combustion and that high flame instabilities can be produced at medium swirl numbers, hence necessitating lower swirl and a different injection strategy for optimised power generation utilising ammonia fuel blends.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Additional Information: This is an open access article under the CC-BY-NC-ND license.
Publisher: Elsevier
ISSN: 0306-2619
Date of First Compliant Deposit: 30 March 2016
Date of Acceptance: 14 February 2016
Last Modified: 17 Mar 2021 02:47

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