![Daniel Pugh](https://profiles-cardiff.imgix.net/attachments/7076?w=200&h=200&auto=format&crop=faces&fit=crop&q=90")
Dr Daniel Pugh
- Ar gael fel goruchwyliwr ôl-raddedig
Timau a rolau for Daniel Pugh
Uwch Ddarlithydd
Trosolwyg
Rwy'n Uwch-ddarlithydd ym Mhrifysgol Caerdydd ac yn Gyfarwyddwr Canolfan Ymchwil Tyrbinau Nwy yr Ysgol Peirianneg. Mae fy ymchwil yn canolbwyntio ar ddatblygu a nodweddu tanwydd amgen ar gyfer ceisiadau trafnidiaeth a phŵer.
Cyrhaeddwyd fy PhD trwy brosiect a ariannwyd gan EPSRC i werthuso safle ynni-ddwys a phenderfynu a oes modd canoli cynhyrchu trydan a dosbarthu stêm yn well i'w yfed yn lleol o wres gwastraff a thanwydd sgil-gynnyrch.
O fewn Canolfan Ymchwil i Ynni, Gwastraff a'r Amgylchedd yng Nghaerdydd, mae fy ngwaith cyfoes yn cwmpasu agweddau sylfaenol ar hylosgi o fewn systemau ynni tanwydd wedi'u datgarboneiddio, a lleihau cynhyrchu allyriadau niweidiol. Mae gen i brofiad gydag ystod o gymwysiadau trosglwyddo ynni, gan gynnwys tanwydd di-garbon fel H2 a NH3, Dal a Storio Carbon (CCS), tanwydd sgil-gynnyrch gwastraff, a cheisiadau Awyrofod.
Rwyf wedi cyfrannu ymchwil i brosiectau a ariennir gan EPSRC, Innovate UK, WEFO, a BEIS, a alluogwyd trwy ddatblygu cyfleusterau arbrofol a diagnosteg uwch yn y Ganolfan Ymchwil Tyrbinau Nwy. Mae hyn wedi arwain at dderbyn gwobr Hinshelwood 2020 am waith teilyngdod ym maes llosgi.
Cyhoeddiad
2026
- Davies, T. et al. 2026. Influence of emissions normalisation methods on H2–CH4 fuel comparisons in generic and NOx-Abated gas turbine combustion. International Journal of Hydrogen Energy 223 154402. (10.1016/j.ijhydene.2026.154402)
- Giles, A. et al. 2026. Operability study with spatial resolved temperature and water molar concentration measurements of a new pressurised optical modular staged combustor. Journal of Engineering for Gas Turbines and Power 148 (3) 031010. (10.1115/1.4069603)
- Vivoli, R. et al. 2026. Surface roughness effects on the operability and performance of a hydrogen jet burner. Journal of Engineering for Gas Turbines and Power 148 (1) 011014. (10.1115/1.4069474)
2025
- Vivoli, R. et al. 2025. Insights from swirl number and ambient pressure variations with a hydrogen/ammonia swirl stabilized diffusion flame. International Journal of Hydrogen Energy 190 151941. (10.1016/j.ijhydene.2025.151941)
- Vivoli, R. et al. 2025. Modeling of roughness effects on generic gas turbine swirler via a detached eddy simulation low-y+ approach. Energies 18 (19) 5240. (10.3390/en18195240)
- Davies, J. et al. 2025. Control of emissions from cracked ammonia swirling flames by heat loss management. International Journal of Hydrogen Energy 168 151061. (10.1016/j.ijhydene.2025.151061)
- Vivoli, R. et al. 2025. Surface roughness effects on the operability and performance of a hydrogen jet burner. 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. Vol. 3A.Combustion, Fuels & Emissions American Society of Mechanical Engineers. (10.1115/gt2025-151389)
- Giles, A. et al. 2025. Operability study with spatial resolved temperature and water molar concentration measurements of a new pressurised optical modular staged combustor. 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. Vol. 3A.Combustion, Fuels & Emissions American Society of Mechanical Engineers. (10.1115/gt2025-152180)
- Hewlett, S. et al. 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. Vol. 2.Coal, Biomass, Hydrogen & Alternative Fuels American Society of Mechanical Engineers(10.1115/gt2025-151612)
- Davies, J. et al. 2025. Emissions analyses of humidified cracked ammonia swirling flames. Combustion and Flame 274 113984. (10.1016/j.combustflame.2025.113984)
- Davies, J. et al. 2025. Experimental and numerical investigation of NH3/H2/N2 combustion in a premixed/stratified swirl burner. Journal of Engineering for Gas Turbines and Power 147 (1) 011006. (10.1115/1.4066207)
2024
- O’Malley, E. et al. 2024. A deep learning-based method for non-intrusive load monitoring and load disaggregation of 11kV/400V electrical Substations. Presented at: 18th International Conference on Energy Sustainability Anaheim, California 15-17 July 2024. ASME 2024 18th International Conference on Energy Sustainability. American Society of Mechanical Engineers(10.1115/es2024-130477)
- Davies, J. et al. 2024. Experimental and numerical investigation of NH3/H2/N2 combustion in a premixed/stratified swirl burner. Presented at: ASME Turbo Expo 2024: Turbomachinery Technical Conference and Exposition London, UK 24-28 June 2024. Ceramics and Ceramic Composites; Coal, Biomass, Hydrogen, and Alternative Fuels. Vol. 2.(10.1115/GT2024-127419)
- Pugh, D. et al. 2024. Influence of variable swirl on emissions in a non-premixed fuel-flexible burner at elevated ambient conditions. Journal of Engineering for Gas Turbines and Power 146 (6) 061006. (10.1115/1.4063786)
2023
- Alnasif, A. et al. 2023. Evolution of ammonia reaction mechanisms and modeling parameters: A review. Applications in Energy and Combustion Science 15 100175. (10.1016/j.jaecs.2023.100175)
- Pugh, D. et al. 2023. Influence of variable swirl on emissions in a non-premixed fuel-flexible burner at elevated ambient conditions. Presented at: ASME Turbo Expo 2023: Turbomachinery Technical Conference and Exposition 26-30 June 2023. ASME Turbo Expo 2023: Turbomachinery Technical Conference and Exposition: Combustion, Fuels, and Emissions. Vol. 3A.ASME. (10.1115/GT2023-102457)
- Mashruk, S. et al. 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)
2022
- Valera Medina, A. et al. 2022. Ammonia. In: O'Connor, J. , Noble, B. and Lieuwen, T. eds. Renewable Fuels: Sources, Conversion, and Utilization. Cambridge University Press. , pp.245-274. (10.1017/9781009072366.011)
- Mashruk, S. et al. 2022. Evolution of N2O production at lean combustion condition in NH3/H2/air premixed swirling flames. Combustion and Flame 244 112299. (10.1016/j.combustflame.2022.112299)
- Harper, J. et al. 2022. Influence of alternative fuel properties and combustor operating conditions on the nvPM and gaseous emissions produced by a small-scale RQL combustor. Fuel 315 123045. (10.1016/j.fuel.2021.123045)
- Zitouni, S. et al. 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)
2021
- Pugh, D. et al. 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)
- Giles, A. et al. 2021. A waste heat recovery strategy and its deployment: an integrated steelworks case study. Proceedings of the ICE - Waste and Resource Management 174 (1), pp.3-11. (10.1680/jwarm.20.00011)
- Pugh, D. et al. 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)
- Runyon, J. et al. 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)
- Pugh, D. et al. 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)
2020
- Crayford, A. et al. 2020. Influence of humidity and fuel hydrogen content on ultrafine non-volatile particulate matter formation in RQL gas turbine technology. Presented at: Turbomachinery Technical Conference and Exposition (TURBO EXPO 2020) Virtual 21-25 September 2020. Proceedings of the ASME Turbo Expo 2020. Vol. 4A.Combustion, Fuels, and Emissions (10.1115/GT2020-15168)
- Hewlett, S. G. et al. 2020. 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. Vol. 3.Vol. GT2020. ASME(10.1115/GT2020-14581)
- Runyon, J. et al. 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)
2019
- Pugh, D. et al. 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)
- Hewlett, S. et al. 2019. Gas turbine co-firing of steelworks ammonia with coke oven gas or methane: A fundamental and cycle Analysis. Presented at: ASME Turbo Expo 2019 Phoenix, Arizona, USA 17-21 June 2019. ASME Turbo Expo 2019: Turbomachinery Technical Conference and Exposition: Volume 3: Coal, Biomass, Hydrogen, and Alternative Fuels; Cycle Innovations; Electric Power; Industrial and Cogeneration; Organic Rankine Cycle Power Systems. ASME. , pp.GT2019-91404. (10.1115/GT2019-91404)
- Runyon, J. et al. 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. Vol. GT2019. (10.1115/GT2019-90215)
- Valera Medina, A. et al. 2019. Premixed ammonia/hydrogen swirl combustion under rich fuel conditions for gas turbines operation. International Journal of Hydrogen Energy 44 (16), pp.8615-8626. (10.1016/j.ijhydene.2019.02.041)
2018
- Upadhyay, A. et al., 2018. A new RAM normalized 1f-WMS technique for the measurement of gas parameters in harsh environments and a comparison with 2f/1f. IEEE Photonics Journal 10 (6) 6804611. (10.1109/JPHOT.2018.2883548)
- Valera-Medina, A. et al. 2018. Investigation of combustion of emulated biogas in a gas turbine test rig. Journal of Thermal Science 27 (4), pp.331-340. (10.1007/s11630-018-1024-1)
- Runyon, J. et al. 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)
- Pugh, D. et al. 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)
2017
- Valera Medina, A. et al. 2017. Preliminary study on lean premixed combustion of ammonia-hydrogen for swirling gas turbine combustors. International Journal of Hydrogen Energy 42 (38), pp.24495-24503. (10.1016/j.ijhydene.2017.08.028)
- Buffi, M. et al., 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. et al. 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)
- Valera Medina, A. et al. 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)
- Pugh, D. et al. 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. , pp.V04BT04A033. (10.1115/GT2017-64609)
- Runyon, J. et al. 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)
2016
- Kurji, H. et al. 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)
- Marsh, R. et al. 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)
- Pugh, D. G. et al. 2016. Parametric investigation of water loading on heavily carbonaceous syngases. Combustion and Flame 164 , pp.126-136. (10.1016/j.combustflame.2015.11.009)
- Buffi, M. et al., 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.
2015
- Valera Medina, A. et al. 2015. Ammonia, methane and hydrogen for gas turbines. Energy Procedia 75 , pp.118-123. (10.1016/j.egypro.2015.07.205)
- Runyon, J. et al. 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. Vol. P3-29. , pp.1-6.
- Runyon, J. et al. 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. Vol. 4B.Combustion, Fuels and Emissions New York: ASME(10.1115/GT2015-43588)
2014
- Pugh, D. et al. 2014. Laminar flame speed and markstein length characterisation of steelworks gas blends. Applied Energy 136 , pp.1026-1034. (10.1016/j.apenergy.2014.04.044)
- Pugh, D. et al. 2014. Variation in laminar burning velocity and Markstein length with water addition for industrially produced syngases. Presented at: urbo Expo 2014: Turbine Technical Conference and Exposition Dusseldorf, Germany 16-20 June 2014. ASME Turbo Expo 2014: Turbine Technical Conference and Exposition: Volume 4A: Combustion, Fuels and Emissions. ASME. , pp.V04AT04A030. (10.1115/GT2014-25455)
2013
- Pugh, D. 2013. Combustion characterisation of compositionally dynamic steelworks gases. PhD Thesis , Cardiff University.
- Pugh, D. et al. 2013. Thermal distributive blast furnace gas characterisation, a steelworks case study. Applied Thermal Engineering 53 (2), pp.358-365. (10.1016/j.applthermaleng.2012.05.014)
- Pugh, D. et al. 2013. Sensitivity to change in laminar burning velocity and Markstein length resulting from variable hydrogen fraction in blast furnace gas for changing ambient conditions. International Journal of Hydrogen Energy 38 (8), pp.3459-3470. (10.1016/j.ijhydene.2012.12.081)
- Syred, N. et al. 2013. Effect of inlet and outlet configurations on blow-off and flashback with premixed combustion for high hydrogen content fuels in a generic swirl burner. Presented at: ICAE 2013 Pretoria, South Africa 12-15 November 2013.
2012
- Pugh, D. et al. 2012. Laminar burning velocity and Markstein length characterisation of compositionally dynamic blast furnace gas. Presented at: Turbo Expo 2012: Turbine Technical Conference and Exposition Copenhagen, Denmark 11-15 June 2012. ASME Turbo Expo 2012: Turbine Technical Conference and Exposition Volume 2: Combustion, Fuels and Emissions, Parts A and B. ASME. , pp.1257-1266. (10.1115/GT2012-69667)
Adrannau llyfrau
- Valera Medina, A. et al. 2022. Ammonia. In: O'Connor, J. , Noble, B. and Lieuwen, T. eds. Renewable Fuels: Sources, Conversion, and Utilization. Cambridge University Press. , pp.245-274. (10.1017/9781009072366.011)
Cynadleddau
- Vivoli, R. et al. 2025. Surface roughness effects on the operability and performance of a hydrogen jet burner. 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. Vol. 3A.Combustion, Fuels & Emissions American Society of Mechanical Engineers. (10.1115/gt2025-151389)
- Giles, A. et al. 2025. Operability study with spatial resolved temperature and water molar concentration measurements of a new pressurised optical modular staged combustor. 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. Vol. 3A.Combustion, Fuels & Emissions American Society of Mechanical Engineers. (10.1115/gt2025-152180)
- Hewlett, S. et al. 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. Vol. 2.Coal, Biomass, Hydrogen & Alternative Fuels American Society of Mechanical Engineers(10.1115/gt2025-151612)
- O’Malley, E. et al. 2024. A deep learning-based method for non-intrusive load monitoring and load disaggregation of 11kV/400V electrical Substations. Presented at: 18th International Conference on Energy Sustainability Anaheim, California 15-17 July 2024. ASME 2024 18th International Conference on Energy Sustainability. American Society of Mechanical Engineers(10.1115/es2024-130477)
- Davies, J. et al. 2024. Experimental and numerical investigation of NH3/H2/N2 combustion in a premixed/stratified swirl burner. Presented at: ASME Turbo Expo 2024: Turbomachinery Technical Conference and Exposition London, UK 24-28 June 2024. Ceramics and Ceramic Composites; Coal, Biomass, Hydrogen, and Alternative Fuels. Vol. 2.(10.1115/GT2024-127419)
- Pugh, D. et al. 2023. Influence of variable swirl on emissions in a non-premixed fuel-flexible burner at elevated ambient conditions. Presented at: ASME Turbo Expo 2023: Turbomachinery Technical Conference and Exposition 26-30 June 2023. ASME Turbo Expo 2023: Turbomachinery Technical Conference and Exposition: Combustion, Fuels, and Emissions. Vol. 3A.ASME. (10.1115/GT2023-102457)
- Pugh, D. et al. 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)
- Runyon, J. et al. 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)
- Crayford, A. et al. 2020. Influence of humidity and fuel hydrogen content on ultrafine non-volatile particulate matter formation in RQL gas turbine technology. Presented at: Turbomachinery Technical Conference and Exposition (TURBO EXPO 2020) Virtual 21-25 September 2020. Proceedings of the ASME Turbo Expo 2020. Vol. 4A.Combustion, Fuels, and Emissions (10.1115/GT2020-15168)
- Hewlett, S. G. et al. 2020. 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. Vol. 3.Vol. GT2020. ASME(10.1115/GT2020-14581)
- Hewlett, S. et al. 2019. Gas turbine co-firing of steelworks ammonia with coke oven gas or methane: A fundamental and cycle Analysis. Presented at: ASME Turbo Expo 2019 Phoenix, Arizona, USA 17-21 June 2019. ASME Turbo Expo 2019: Turbomachinery Technical Conference and Exposition: Volume 3: Coal, Biomass, Hydrogen, and Alternative Fuels; Cycle Innovations; Electric Power; Industrial and Cogeneration; Organic Rankine Cycle Power Systems. ASME. , pp.GT2019-91404. (10.1115/GT2019-91404)
- Runyon, J. et al. 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. Vol. GT2019. (10.1115/GT2019-90215)
- Pugh, D. et al. 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. , pp.V04BT04A033. (10.1115/GT2017-64609)
- Runyon, J. et al. 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)
- Buffi, M. et al., 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.
- Runyon, J. et al. 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. Vol. P3-29. , pp.1-6.
- Runyon, J. et al. 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. Vol. 4B.Combustion, Fuels and Emissions New York: ASME(10.1115/GT2015-43588)
- Pugh, D. et al. 2014. Variation in laminar burning velocity and Markstein length with water addition for industrially produced syngases. Presented at: urbo Expo 2014: Turbine Technical Conference and Exposition Dusseldorf, Germany 16-20 June 2014. ASME Turbo Expo 2014: Turbine Technical Conference and Exposition: Volume 4A: Combustion, Fuels and Emissions. ASME. , pp.V04AT04A030. (10.1115/GT2014-25455)
- Syred, N. et al. 2013. Effect of inlet and outlet configurations on blow-off and flashback with premixed combustion for high hydrogen content fuels in a generic swirl burner. Presented at: ICAE 2013 Pretoria, South Africa 12-15 November 2013.
- Pugh, D. et al. 2012. Laminar burning velocity and Markstein length characterisation of compositionally dynamic blast furnace gas. Presented at: Turbo Expo 2012: Turbine Technical Conference and Exposition Copenhagen, Denmark 11-15 June 2012. ASME Turbo Expo 2012: Turbine Technical Conference and Exposition Volume 2: Combustion, Fuels and Emissions, Parts A and B. ASME. , pp.1257-1266. (10.1115/GT2012-69667)
Erthyglau
- Davies, T. et al. 2026. Influence of emissions normalisation methods on H2–CH4 fuel comparisons in generic and NOx-Abated gas turbine combustion. International Journal of Hydrogen Energy 223 154402. (10.1016/j.ijhydene.2026.154402)
- Giles, A. et al. 2026. Operability study with spatial resolved temperature and water molar concentration measurements of a new pressurised optical modular staged combustor. Journal of Engineering for Gas Turbines and Power 148 (3) 031010. (10.1115/1.4069603)
- Vivoli, R. et al. 2026. Surface roughness effects on the operability and performance of a hydrogen jet burner. Journal of Engineering for Gas Turbines and Power 148 (1) 011014. (10.1115/1.4069474)
- Vivoli, R. et al. 2025. Insights from swirl number and ambient pressure variations with a hydrogen/ammonia swirl stabilized diffusion flame. International Journal of Hydrogen Energy 190 151941. (10.1016/j.ijhydene.2025.151941)
- Vivoli, R. et al. 2025. Modeling of roughness effects on generic gas turbine swirler via a detached eddy simulation low-y+ approach. Energies 18 (19) 5240. (10.3390/en18195240)
- Davies, J. et al. 2025. Control of emissions from cracked ammonia swirling flames by heat loss management. International Journal of Hydrogen Energy 168 151061. (10.1016/j.ijhydene.2025.151061)
- Davies, J. et al. 2025. Emissions analyses of humidified cracked ammonia swirling flames. Combustion and Flame 274 113984. (10.1016/j.combustflame.2025.113984)
- Davies, J. et al. 2025. Experimental and numerical investigation of NH3/H2/N2 combustion in a premixed/stratified swirl burner. Journal of Engineering for Gas Turbines and Power 147 (1) 011006. (10.1115/1.4066207)
- Pugh, D. et al. 2024. Influence of variable swirl on emissions in a non-premixed fuel-flexible burner at elevated ambient conditions. Journal of Engineering for Gas Turbines and Power 146 (6) 061006. (10.1115/1.4063786)
- Alnasif, A. et al. 2023. Evolution of ammonia reaction mechanisms and modeling parameters: A review. Applications in Energy and Combustion Science 15 100175. (10.1016/j.jaecs.2023.100175)
- Mashruk, S. et al. 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)
- Mashruk, S. et al. 2022. Evolution of N2O production at lean combustion condition in NH3/H2/air premixed swirling flames. Combustion and Flame 244 112299. (10.1016/j.combustflame.2022.112299)
- Harper, J. et al. 2022. Influence of alternative fuel properties and combustor operating conditions on the nvPM and gaseous emissions produced by a small-scale RQL combustor. Fuel 315 123045. (10.1016/j.fuel.2021.123045)
- Zitouni, S. et al. 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)
- Pugh, D. et al. 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)
- Giles, A. et al. 2021. A waste heat recovery strategy and its deployment: an integrated steelworks case study. Proceedings of the ICE - Waste and Resource Management 174 (1), pp.3-11. (10.1680/jwarm.20.00011)
- Pugh, D. et al. 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)
- Runyon, J. et al. 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)
- Pugh, D. et al. 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)
- Valera Medina, A. et al. 2019. Premixed ammonia/hydrogen swirl combustion under rich fuel conditions for gas turbines operation. International Journal of Hydrogen Energy 44 (16), pp.8615-8626. (10.1016/j.ijhydene.2019.02.041)
- Upadhyay, A. et al., 2018. A new RAM normalized 1f-WMS technique for the measurement of gas parameters in harsh environments and a comparison with 2f/1f. IEEE Photonics Journal 10 (6) 6804611. (10.1109/JPHOT.2018.2883548)
- Valera-Medina, A. et al. 2018. Investigation of combustion of emulated biogas in a gas turbine test rig. Journal of Thermal Science 27 (4), pp.331-340. (10.1007/s11630-018-1024-1)
- Runyon, J. et al. 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)
- Pugh, D. et al. 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)
- Valera Medina, A. et al. 2017. Preliminary study on lean premixed combustion of ammonia-hydrogen for swirling gas turbine combustors. International Journal of Hydrogen Energy 42 (38), pp.24495-24503. (10.1016/j.ijhydene.2017.08.028)
- Buffi, M. et al., 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. et al. 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)
- Valera Medina, A. et al. 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)
- Kurji, H. et al. 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)
- Marsh, R. et al. 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)
- Pugh, D. G. et al. 2016. Parametric investigation of water loading on heavily carbonaceous syngases. Combustion and Flame 164 , pp.126-136. (10.1016/j.combustflame.2015.11.009)
- Valera Medina, A. et al. 2015. Ammonia, methane and hydrogen for gas turbines. Energy Procedia 75 , pp.118-123. (10.1016/j.egypro.2015.07.205)
- Pugh, D. et al. 2014. Laminar flame speed and markstein length characterisation of steelworks gas blends. Applied Energy 136 , pp.1026-1034. (10.1016/j.apenergy.2014.04.044)
- Pugh, D. et al. 2013. Thermal distributive blast furnace gas characterisation, a steelworks case study. Applied Thermal Engineering 53 (2), pp.358-365. (10.1016/j.applthermaleng.2012.05.014)
- Pugh, D. et al. 2013. Sensitivity to change in laminar burning velocity and Markstein length resulting from variable hydrogen fraction in blast furnace gas for changing ambient conditions. International Journal of Hydrogen Energy 38 (8), pp.3459-3470. (10.1016/j.ijhydene.2012.12.081)
Gosodiad
- Pugh, D. 2013. Combustion characterisation of compositionally dynamic steelworks gases. PhD Thesis , Cardiff University.
Ymchwil
Contracts
| Title | People | Sponsor | Value | Duration |
|---|
Supervised Students
| Title | Student | Status | Degree |
|---|
Bywgraffiad
Addysg
- 2013: PhD (Peirianneg Fecanyddol) Prifysgol Caerdydd, Caerdydd, UK
- 2009: MEng (Peirianneg Integredig) Prifysgol Caerdydd, Caerdydd, y DU
Anrhydeddau a gwobrau
- Ennill Gwobr Hinshelwood 2020 - adolygwyd gan gymheiriaid gan y Sefydliad Hylosgi
Aelodaeth broffesiynol
- Aelod o Adran Brydeinig y Sefydliad Hylosgi
- Cymrodoriaeth AU Uwch (FHEA)
Swyddi academaidd
- 2020 - presennol: Darlithydd mecaneg hylif, Prifysgol Caerdydd
- 2017 - 2020: Cymrawd Ymchwil, Prifysgol Caerdydd
- 2013 - 2017: Cydymaith Ymchwil, Prifysgol Caerdydd
Cefais fy nghyflogi'n agos fel Cynorthwy-ydd Ymchwil ar ôl cwblhau gwaith israddedig a wnaed ar gyfer fy ngradd Peirianneg Integredig. Roedd y prosiect yn gofyn am nodweddu cyfraddau ocsideiddio fferrus, yn enwedig arddangos a mesur dylanwad awtocatalytig o fewn atebion ferric colloidal. Cafodd yr astudiaeth dderbyniad da ac arweiniodd at gymhwyso a chaffael cyllid ychwanegol ac ymchwil pellach cyn cwblhau fy ngradd Meistr.
Wedi hynny, gwnes gais i ymgymryd ag ymchwil doethurol ar brosiect a ariennir gan EPSRC, gan fonitro/optimeiddio cynhyrchu ynni ar y safle a'i ddefnyddio ar gyfer cyfleuster integredig mawr. Fy nghylch gwaith o fewn y tîm amlddisgyblaethol oedd astudio nwyon sy'n gynhenid i'r broses gwneud dur integredig, gan arwain at ymchwil ym maes hylosgi sylfaenol a chymhwysol. Ar yr adeg hon, dechreuais weithio gyda myfyrwyr Meistr ac Israddedigion ar eu prosiectau; Datblygu dealltwriaeth o'r adwaith cineteg sy'n gysylltiedig â lluosogi fflam a defnyddio tanwydd amgen. Caniateir canlyniadau ar gyfer dealltwriaeth fanwl o ymddygiad hylosgi mewn perthynas â lleihau ansefydlogrwydd gweithredol o fewn systemau diwydiannol ymarferol.
Ar ôl ennill fy PhD, cymerais swydd Cydymaith Ymchwil cyntaf, yna yn Gymrawd yng Nghanolfan Ymchwil Tyrbinau Nwy yr Ysgol Peirianneg sy'n ymchwilio i agweddau ar losgi sylfaenol a chymhwysol. Roedd y rôl yn gofyn am weithredu a dylunio cyfleusterau arbrofol a rhaglenni profi a gyfrannodd at brosiectau cydweithredol a ariennir gan gyrff allanol, a fy ymchwil newydd fy hun. Rwyf wedi cyfrannu at brosiectau a ddyfarnwyd gan sawl corff ariannu gan gynnwys EPSRC, y Bwrdd Strategaeth Technoleg (Innovate UK) a'r UE, gan gydweithio â phartneriaid diwydiannol blaenllaw. Mae gwaith crynodol wedi canolbwyntio ar losgi sylfaenol a chymhwysol. Mae'r agweddau a astudiwyd yn cynnwys: Fflamau chwyrnu a gwrthlif mewn amodau uchel ar gyfer cymwysiadau tyrbinau nwy, tanwydd di-garbon a bio-deillio amgen, fflamau cam/trylediad, lleihau allyriadau niweidiol, lluosogi fflam laminaidd a chythryblus, a cheineteg cemegol gyda dilysu a datblygu mecanweithiau adwaith.
Meysydd goruchwyliaeth
Mae gen i ddiddordeb mewn goruchwylio myfyrwyr PhD ym meysydd:
- Cymhwyso tanwydd di-garbon fel H2 a NH3
- Hylosgi Sylfaenol
- Lleihau allyriadau
- Datblygu technegau diagnostig uwch
- Datblygu gweithgynhyrchu ychwanegion ar gyfer ceisiadau hylosgi
Goruchwyliaeth gyfredol
