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Hewlett, Sally, Pugh, Daniel ORCID: https://orcid.org/0000-0002-6721-2265, Valera Medina, Agustin ORCID: https://orcid.org/0000-0003-1580-7133, Goktepe, Burak, Runyon, Jon ORCID: https://orcid.org/0000-0003-3813-7494, Giles, Anthony ORCID: https://orcid.org/0000-0002-1221-5987 and Morris, Steve ORCID: https://orcid.org/0000-0001-5865-8911 2025. The effects of secondary air staging location, pressure and humidification on NOx emissions for a high ammonia blend in premixed swirl combustion. Presented at: ASME Turbo Expo 2025: Turbomachinery Technical Conference and Exposition, Memphis, Tennessee, USA, 16-20 June 2025. Proceedings of the Turbomachinery Technical Conference and Exposition. Coal, Biomass, Hydrogen & Alternative Fuels , vol.2 American Society of Mechanical Engineers, 10.1115/gt2025-151612

Agwu, Ogbonnaya, Runyon, Jon ORCID: https://orcid.org/0000-0003-3813-7494, Goktepe, Burak, Chong Tung, Cheng, Ng, Jo-Han, Giles, Anthony ORCID: https://orcid.org/0000-0002-1221-5987 and Valera Medina, Agustin ORCID: https://orcid.org/0000-0003-1580-7133 2023. Dual phase renewable fuel combustion in an atmospheric gas turbine burner. Journal of Thermal Science 32 , pp. 1278-1291. 10.1007/s11630-023-1719-9
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Mashruk, Syed, Xiao, Hua, Pugh, Daniel ORCID: https://orcid.org/0000-0002-6721-2265, Chiong, Meng-Choung, Runyon, Jon ORCID: https://orcid.org/0000-0003-3813-7494, Goktepe, Burak, Giles, Anthony ORCID: https://orcid.org/0000-0002-1221-5987 and Valera Medina, Agustin ORCID: https://orcid.org/0000-0003-1580-7133 2023. Numerical analysis on the evolution of NH2 in ammonia/hydrogen swirling flames and detailed sensitivity analysis under elevated conditions. Combustion Science and Technology 195 (6) , pp. 1251-1278. 10.1080/00102202.2021.1990897
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Zitouni, S., Pugh, D. ORCID: https://orcid.org/0000-0002-6721-2265, Crayford, A. ORCID: https://orcid.org/0000-0002-6921-4141, Bowen, P. J. ORCID: https://orcid.org/0000-0002-3644-6878 and Runyon, J. ORCID: https://orcid.org/0000-0003-3813-7494 2022. Lewis number effects on lean premixed combustion characteristics of multi-component fuel blends. Combustion and Flame 238 , 111932. 10.1016/j.combustflame.2021.111932
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Pugh, D. ORCID: https://orcid.org/0000-0002-6721-2265, Valera-Medina, A. ORCID: https://orcid.org/0000-0003-1580-7133, Bowen, P. ORCID: https://orcid.org/0000-0002-3644-6878, Giles, A. ORCID: https://orcid.org/0000-0002-1221-5987, Goktepe, B., Runyon, J. ORCID: https://orcid.org/0000-0003-3813-7494, Morris, S. ORCID: https://orcid.org/0000-0001-5865-8911, Hewlett, S. and Marsh, R. ORCID: https://orcid.org/0000-0003-2110-5744 2021. Emissions performance of staged premixed and diffusion combustor concepts for an NH3/air flame with and without reactant humidification. Journal of Engineering for Gas Turbines and Power 143 (5) , 051012. 10.1115/1.4049451
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Pugh, D. ORCID: https://orcid.org/0000-0002-6721-2265, Valera-Medina, A. ORCID: https://orcid.org/0000-0003-1580-7133, Bowen, P. ORCID: https://orcid.org/0000-0002-3644-6878, Giles, A. ORCID: https://orcid.org/0000-0002-1221-5987, Goktepe, B., Runyon, J. ORCID: https://orcid.org/0000-0003-3813-7494, Morris, S. ORCID: https://orcid.org/0000-0001-5865-8911, Hewlett, S. and Marsh, R. ORCID: https://orcid.org/0000-0003-2110-5744 2021. Emissions performance of staged premixed and diffusion combustor concepts for an NH3/air flame with and without reactant humidification. Presented at: ASME Turbo Expo 2020: Turbomachinery Technical Conference & Exposition, Virtual, 21-25 September 2020. ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition. , vol.4A ASME, 10.1115/GT2020-14953
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Runyon, Jon ORCID: https://orcid.org/0000-0003-3813-7494, Pugh, Daniel ORCID: https://orcid.org/0000-0002-6721-2265, Giles, Anthony ORCID: https://orcid.org/0000-0002-1221-5987, Goktepe, Burak, Bowen, Philip ORCID: https://orcid.org/0000-0002-3644-6878, Marsh, Richard ORCID: https://orcid.org/0000-0003-2110-5744 and Morris, Steven ORCID: https://orcid.org/0000-0001-5865-8911 2021. Experimental and kinetic evaluation of pressurized lean premixed hydrogen-air flame stability with carbon dioxide and steam dilution. Presented at: ASME Turbo Expo 2020: Turbomachinery Technical Conference & Exposition, Virtual, 21-25 September 2020. Proceedings of ASME Turbo Expo 2020Turbomachinery Technical Conference and Exposition. , vol.4B ASME, 10.1115/GT2020-16083
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Hewlett, S. G., Pugh, D. G. ORCID: https://orcid.org/0000-0002-6721-2265, Valera-Medina, A. ORCID: https://orcid.org/0000-0003-1580-7133, Giles, A. ORCID: https://orcid.org/0000-0002-1221-5987, Runyon, J. ORCID: https://orcid.org/0000-0003-3813-7494, Goktepe, B. and Bowen, P.J. ORCID: https://orcid.org/0000-0002-3644-6878 2021. Industrial wastewater as an enabler of green ammonia to power via gas turbine technology. Presented at: Turbomachinery Technical Conference & Exposition (TURBO EXPO 2020), Virtual, 21-25 September 2020. Proceedings of ASME Turbo Expo 2020 Turbomachinery Technical Conference and Exposition. ASME, GT2020-14581. 10.1115/GT2020-14581
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Pugh, Daniel ORCID: https://orcid.org/0000-0002-6721-2265, Runyon, Jon ORCID: https://orcid.org/0000-0003-3813-7494, Bowen, Philip ORCID: https://orcid.org/0000-0002-3644-6878, Giles, Anthony ORCID: https://orcid.org/0000-0002-1221-5987, Valera-Medina, Agustin ORCID: https://orcid.org/0000-0003-1580-7133, Marsh, Richard ORCID: https://orcid.org/0000-0003-2110-5744, Goktepe, Burak and Hewlett, Sally 2021. An investigation of ammonia primary flame combustor concepts for emissions reduction with OH*, NH2* and NH* chemiluminescence at elevated conditions. Proceedings of the Combustion Institute 38 (4) , pp. 6451-6459. 10.1016/j.proci.2020.06.310
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Agwu, Ogbonnaya, Runyon, Jon ORCID: https://orcid.org/0000-0003-3813-7494, Goktepe, Burak, Chong, Cheng T., Ng, Jo-Han, Giles, Anthony ORCID: https://orcid.org/0000-0002-1221-5987 and Valera-Medina, Agustin ORCID: https://orcid.org/0000-0003-1580-7133 2020. Visualisation and performance evaluation of biodiesel/methane co-combustion in a swirl-stabilised gas turbine combustor. Fuel 277 , 118172. 10.1016/j.fuel.2020.118172
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Runyon, Jon ORCID: https://orcid.org/0000-0003-3813-7494, Giles, Anthony ORCID: https://orcid.org/0000-0002-1221-5987, Marsh, Richard ORCID: https://orcid.org/0000-0003-2110-5744, Pugh, Daniel ORCID: https://orcid.org/0000-0002-6721-2265, Goktepe, Burak, Bowen, Philip ORCID: https://orcid.org/0000-0002-3644-6878 and Morris, Steve ORCID: https://orcid.org/0000-0001-5865-8911 2020. Characterization of Additive Layer Manufacturing Swirl Burner Surface Roughness and Its Effects on Flame Stability Using High-Speed Diagnostics. Journal of Engineering for Gas Turbines and Power 142 (4) , 041017. 10.1115/1.4044950
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Pugh, Daniel ORCID: https://orcid.org/0000-0002-6721-2265, Bowen, Philip ORCID: https://orcid.org/0000-0002-3644-6878, Valera-Medina, Agustin ORCID: https://orcid.org/0000-0003-1580-7133, Giles, Anthony ORCID: https://orcid.org/0000-0002-1221-5987, Runyon, Jon ORCID: https://orcid.org/0000-0003-3813-7494 and Marsh, Richard ORCID: https://orcid.org/0000-0003-2110-5744 2019. Influence of steam addition and elevated ambient conditions on NOx reduction in a staged premixed swirling NH3/H2 flame. Proceedings of the Combustion Institute 37 (4) , pp. 5401-5409. 10.1016/j.proci.2018.07.091
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Runyon, Jon ORCID: https://orcid.org/0000-0003-3813-7494, Giles, Anthony ORCID: https://orcid.org/0000-0002-1221-5987, Marsh, Richard ORCID: https://orcid.org/0000-0003-2110-5744, Pugh, Daniel ORCID: https://orcid.org/0000-0002-6721-2265, Goktepe, Burak, Bowen, Phil ORCID: https://orcid.org/0000-0002-3644-6878 and Morris, Steve ORCID: https://orcid.org/0000-0001-5865-8911 2019. Characterization of ALM swirl burner surface roughness and its effect on flame stability using high-speed diagnostics. Presented at: ASME Turbo Expo 2019, Phoenix, Arizona, USA, 17-21 June 2019. ASME Turbo Expo 2019: Turbomachinery Technical Conference and Exposition: Volume 4A: Combustion, Fuels, and Emissions. GT2019-90215-V04AT04A008. 10.1115/GT2019-90215

Crayford, Andrew P. ORCID: https://orcid.org/0000-0002-6921-4141, Lacan, Franck ORCID: https://orcid.org/0000-0002-3499-5240, Runyon, Jon ORCID: https://orcid.org/0000-0003-3813-7494, Bowen, Philip J. ORCID: https://orcid.org/0000-0002-3644-6878, Balwadkar, Shrinivas, Harper, Joseph ORCID: https://orcid.org/0000-0002-1207-7086 and Pugh, Daniel G. 2019. Manufacture, characterization and stability limits of an AM prefilming air-blast atomizer. Presented at: ASME Turbo Expo 2019: Turbomachinery Technical Conference and Exposition, Phoenix, AZ, USA, 17-21 June 2019. Turbo Expo: Power for Land, Sea and Air. Volume 4B: Combustion, Fuels, and Emissions. ASME, 10.1115/GT2019-91624

Runyon, Jon ORCID: https://orcid.org/0000-0003-3813-7494, Marsh, Richard ORCID: https://orcid.org/0000-0003-2110-5744, Bowen, Philip ORCID: https://orcid.org/0000-0002-3644-6878, Pugh, Daniel ORCID: https://orcid.org/0000-0002-6721-2265, Giles, Anthony ORCID: https://orcid.org/0000-0002-1221-5987 and Morris, Steven 2018. Lean methane flame stability in a premixed generic swirl burner: Isothermal flow and atmospheric combustion characterization. Experimental Thermal and Fluid Science 92 , pp. 125-140. 10.1016/j.expthermflusci.2017.11.019
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Pugh, Daniel ORCID: https://orcid.org/0000-0002-6721-2265, Bowen, Philip ORCID: https://orcid.org/0000-0002-3644-6878, Crayford, Andrew ORCID: https://orcid.org/0000-0002-6921-4141, Marsh, Richard ORCID: https://orcid.org/0000-0003-2110-5744, Runyon, Jon ORCID: https://orcid.org/0000-0003-3813-7494, Morris, Steven ORCID: https://orcid.org/0000-0001-5865-8911 and Giles, Anthony ORCID: https://orcid.org/0000-0002-1221-5987 2018. Catalytic influence of water vapor on lean blowoff and NOx reduction for pressurised swirling syngas flames. Journal of Engineering for Gas Turbines and Power 140 (6) , 061502. 10.1115/1.4038417
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Mashruk, Syed, Marsh, Richard ORCID: https://orcid.org/0000-0003-2110-5744, Runyon, Jon ORCID: https://orcid.org/0000-0003-3813-7494, Morris, Steve ORCID: https://orcid.org/0000-0001-5865-8911 and Bowen, Phil ORCID: https://orcid.org/0000-0002-3644-6878 2018. Methodology and comparison of quantitative NO-LIF imaging in a bunsen burner with numerical simulation results. Presented at: 19th International Symposium on Applications of Laser and Imaging Techniques to Fluid Mechanics (LXLASER 2018), Lisbon, Portugal, 16-19 July 2018. Proceedings of the19th International Symposium on Applications of Laser and Imaging Techniques to Fluid Mechanics. Lisbon: Instituto Superior Técnico,
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Buffi, Marco, Valera Medina, Agustin ORCID: https://orcid.org/0000-0003-1580-7133, Marsh, Richard ORCID: https://orcid.org/0000-0003-2110-5744, Pugh, Daniel ORCID: https://orcid.org/0000-0002-6721-2265, Giles, Anthony ORCID: https://orcid.org/0000-0002-1221-5987, Runyon, Jon ORCID: https://orcid.org/0000-0003-3813-7494 and Chiaramonti, David 2017. Emissions characterization tests for hydrotreated renewable jet fuel from used cooking oil and its blends. Applied Energy 201 , pp. 84-93. 10.1016/j.apenergy.2017.05.104

Pugh, D. G. ORCID: https://orcid.org/0000-0002-6721-2265, Bowen, P. J. ORCID: https://orcid.org/0000-0002-3644-6878, Marsh, R. ORCID: https://orcid.org/0000-0003-2110-5744, Crayford, A. P. ORCID: https://orcid.org/0000-0002-6921-4141, Runyon, J. ORCID: https://orcid.org/0000-0003-3813-7494, Morris, S. ORCID: https://orcid.org/0000-0001-5865-8911, Valera-Medina, A. ORCID: https://orcid.org/0000-0003-1580-7133 and Giles, A. ORCID: https://orcid.org/0000-0002-1221-5987 2017. Dissociative influence of H2O vapour/spray on lean blowoff and NOx reduction for heavily carbonaceous syngas swirling flames. Combustion and Flame 177 , pp. 37-48. 10.1016/j.combustflame.2016.11.010
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Valera Medina, Agustin ORCID: https://orcid.org/0000-0003-1580-7133, Marsh, Richard ORCID: https://orcid.org/0000-0003-2110-5744, Runyon, Jon ORCID: https://orcid.org/0000-0003-3813-7494, Pugh, Daniel ORCID: https://orcid.org/0000-0002-6721-2265, Beasley, Paul, Hughes, Timothy and Bowen, Phil ORCID: https://orcid.org/0000-0002-3644-6878 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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Pugh, Daniel ORCID: https://orcid.org/0000-0002-6721-2265, Bowen, Philip ORCID: https://orcid.org/0000-0002-3644-6878, Crayford, Andrew ORCID: https://orcid.org/0000-0002-6921-4141, Marsh, Richard ORCID: https://orcid.org/0000-0003-2110-5744, Runyon, Jon ORCID: https://orcid.org/0000-0003-3813-7494, Morris, Steven ORCID: https://orcid.org/0000-0001-5865-8911 and Giles, Anthony ORCID: https://orcid.org/0000-0002-1221-5987 2017. Catalytic influence of water vapor on lean blowoff and NOx reduction for pressurised swirling syngas flames. Presented at: ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition, North Carolina, USA, 26-30 June 2017. Volume 4B: Combustion, Fuels and Emissions. ASME, V04BT04A033. 10.1115/GT2017-64609

Runyon, Jon ORCID: https://orcid.org/0000-0003-3813-7494, Marsh, Richard ORCID: https://orcid.org/0000-0003-2110-5744, Pugh, Daniel ORCID: https://orcid.org/0000-0002-6721-2265, Bowen, Philip ORCID: https://orcid.org/0000-0002-3644-6878, Giles, Anthony ORCID: https://orcid.org/0000-0002-1221-5987, Morris, Steven ORCID: https://orcid.org/0000-0001-5865-8911 and Valera Medina, Agustin ORCID: https://orcid.org/0000-0003-1580-7133 2017. Experimental analysis of confinement and swirl effects on premixed ch4-h-2 flame behavior in a pressurized generic swirl burner. Presented at: ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition, North Carolina, USA, 26-30 June 2017. ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition. , vol.4B ASME, 10.1115/GT2017-64794

Runyon, Jon ORCID: https://orcid.org/0000-0003-3813-7494 2017. Gas turbine fuel flexibility: pressurized swirl flame stability, thermoacoustics, and emissions. PhD Thesis, Cardiff University.
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Kurji, Hayder, Valera Medina, Agustin ORCID: https://orcid.org/0000-0003-1580-7133, Runyon, Jon ORCID: https://orcid.org/0000-0003-3813-7494, Giles, Anthony ORCID: https://orcid.org/0000-0002-1221-5987, Pugh, Daniel ORCID: https://orcid.org/0000-0002-6721-2265, Marsh, Richard ORCID: https://orcid.org/0000-0003-2110-5744, Cerone, N., Zimbardi, F. and Valerio, V. 2016. Combustion characteristics of biodiesel saturated with pyrolysis oil for power generation in gas turbines. Renewable Energy 99 , pp. 443-451. 10.1016/j.renene.2016.07.036
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Marsh, R. ORCID: https://orcid.org/0000-0003-2110-5744, Runyon, J. ORCID: https://orcid.org/0000-0003-3813-7494, Giles, A. ORCID: https://orcid.org/0000-0002-1221-5987, Morris, S. ORCID: https://orcid.org/0000-0001-5865-8911, Pugh, D. ORCID: https://orcid.org/0000-0002-6721-2265, Valera-Medina, A. and Bowen, P ORCID: https://orcid.org/0000-0002-3644-6878 2016. Premixed methane oxycombustion in nitrogen and carbon dioxide atmospheres: measurement of operating limits, flame location and emissions. Proceedings of the Combustion Institute. Proceedings of the Combustion Institute 36 (3) , pp. 3949-3958. 10.1016/j.proci.2016.06.057
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Buffi, Marco, Valera Medina, Agustin ORCID: https://orcid.org/0000-0003-1580-7133, Runyon, Jon ORCID: https://orcid.org/0000-0003-3813-7494, Pugh, Daniel ORCID: https://orcid.org/0000-0002-6721-2265, Giles, Anthony ORCID: https://orcid.org/0000-0002-1221-5987, Marsh, Richard ORCID: https://orcid.org/0000-0003-2110-5744 and Chiaramonti, D. 2016. Evaluation of combustion behavior of renewable jet fuel in a combustor rig: influence of HEFA and its blends on flame stability and emissions compared to aviation kerosene. Presented at: 24th European Biomass Conference, Amsterdam, The Netherlands, 6-9 June 2016.
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Valera Medina, Agustin ORCID: https://orcid.org/0000-0003-1580-7133, Morris, Steven ORCID: https://orcid.org/0000-0001-5865-8911, Runyon, Jon ORCID: https://orcid.org/0000-0003-3813-7494, Pugh, Daniel G. ORCID: https://orcid.org/0000-0002-6721-2265, Marsh, Richard ORCID: https://orcid.org/0000-0003-2110-5744, Beasley, P. and Hughes, Thomas ORCID: https://orcid.org/0000-0002-3055-3154 2015. Ammonia, methane and hydrogen for gas turbines. Energy Procedia 75 , pp. 118-123. 10.1016/j.egypro.2015.07.205
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Runyon, Jon ORCID: https://orcid.org/0000-0003-3813-7494, Marsh, Richard ORCID: https://orcid.org/0000-0003-2110-5744, Sevcenco, Yura Alexander ORCID: https://orcid.org/0000-0002-6489-9903, Pugh, Daniel ORCID: https://orcid.org/0000-0002-6721-2265 and Morris, Steven ORCID: https://orcid.org/0000-0001-5865-8911 2015. Development and commissioning of a chemiluminescence imaging system for an optically-accessible high-pressure generic swirl burner. Presented at: 7th European Combustion Meeting (ECM 2015), Budapest, Hungary, 31 Mar - 2 Apr 2015. EMC 2015: 7th European Combustion Meeting, March 30 - April 2, 2015, Budapest, Hungary. (P3-29) pp. 1-6.
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Runyon, Jon ORCID: https://orcid.org/0000-0003-3813-7494, Marsh, Richard ORCID: https://orcid.org/0000-0003-2110-5744, Valera Medina, Agustin ORCID: https://orcid.org/0000-0003-1580-7133, Giles, Anthony ORCID: https://orcid.org/0000-0002-1221-5987, Pugh, Daniel ORCID: https://orcid.org/0000-0002-6721-2265, Sevcenco, Yura Alexander ORCID: https://orcid.org/0000-0002-6489-9903 and Bowen, Philip John ORCID: https://orcid.org/0000-0002-3644-6878 2015. Methane-oxygen flame stability in a generic premixed gas turbine swirl combustor at varying thermal power and pressure. Presented at: ASME Turbo Expo 2015: Turbine Technical Conference and Exposition, Montreal, Quebec, Canada, 15–19 June 2015. Conference Proceedings of ASME Turbo Expo 2015: Turbine Technical Conference and Exposition. Combustion, Fuels and Emissions , vol.4B New York: ASME, 10.1115/GT2015-43588

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