Jon Runyon
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Numerical Analysis on the Evolution of NH<sub>2</sub> in Ammonia/hydrogen Swirling Flames and Detailed Sensitivity Analysis under Elevated Conditions Open
Ammonia/hydrogen blends have received some attention toward the development of new technologies focused on gas turbine combustion systems, as doping of hydrogen in ammonia enhances flame speed and stability while decreasing ignition energy…
Characterization of Additive Layer Manufacturing Swirl Burner Surface Roughness and Its Effects on Flame Stability Using High-Speed Diagnostics Open
In this study, two Inconel 625 swirl nozzle inserts with identical bulk geometry were constructed via additive layer manufacturing (ALM) for use in a generic gas turbine swirl burner. Further postprocessing by grit blasting of one swirl no…
Influence of steam addition and elevated ambient conditions on NOx reduction in a staged premixed swirling NH3/H2 flame Open
There is growing interest in the application of renewably-generated NH3 to support future energy requirements, however combustor designs and strategies require considerable development to reduce NOx emissions in particular. A turbulent swi…
Lean methane flame stability in a premixed generic swirl burner: Isothermal flow and atmospheric combustion characterization Open
Gas turbine combustors operating in lean premixed mode are known to be susceptible to flame blowoff due to competing influences of increasing chemical timescales and decreasing flow time scales under these conditions. In this study, combus…
Catalytic Influence of Water Vapor on Lean Blow-Off and NOx Reduction for Pressurized Swirling Syngas Flames Open
It has become increasingly cost-effective for the steel industry to invest in the capture of heavily carbonaceous basic oxygen furnace or converter gas, and use it to support the intensive energy demands of the integrated facility, or for …
Dissociative influence of H 2 O vapour/spray on lean blowoff and NO x reduction for heavily carbonaceous syngas swirling flames Open
Recent studies have described and evidenced the enhancement of fundamental combustion parameters such as laminar flame speed due to the catalytic influence of H2O with heavily carbonaceous syngas mixtures. In this study, the potential bene…
Premixed methane oxycombustion in nitrogen and carbon dioxide atmospheres: measurement of operating limits, flame location and emissions. Proceedings of the Combustion Institute Open
The influence of O2 concentration on a premixed swirling flame was investigated for changes in discrete levels of CO2 and N2 dilution, with application to carbon capture in gas turbine systems. Chemical kinetic models were utilised to supp…
View article: Ammonia–methane combustion in tangential swirl burners for gas turbine power generation
Ammonia–methane combustion in tangential swirl burners for gas turbine power generation Open
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 a…