Publications

Below is a list of all of my scientific publications to date. If you are interested in any of these and want to find out more, please get in touch.

Journal articles

Ogrodniczak, P., Sayma, A., White, M., 2025, “Optimisation of a converging-diverging nozzle for the wet-to-dry expansion of the siloxane MM”, Applied Thermal Engineering, 260(2), 124870. https://doi.org/10.1016/j.applthermaleng.2024.124870
Abdeldayem, A., White, M., Sayma, A., 2024, “The effect of different blade geometrical parameters on the operational flexibility and aerodynamic performance of axial sCO₂ turbines”, International Journal of Gas Turbine, Propulsion and Power Systems, 15(5). https://doi.org/10.38036/jgpp.15.5_v15n5tp01
White, M., 2024, “A web-based tool for teaching non-ideal thermodynamic cycles”, SoftwareX, 27, 101806. https://doi.org/10.1016/j.softx.2024.101806
Aqel, O., White, M., 2024, “Loss analysis in radial inflow turbines for supercritical CO₂ mixtures”, Journal of Turbomachinery, 146(5), 051003. https://doi.org/10.1115/1.4064193
Salah, S., Abdeldayem, A., White, M., Sayma, A., 2024, “Off-design performance assessment of an axial turbine for a 100 MWe concentrated solar power plant operating with CO₂ mixtures”, Applied Thermal Engineering, 238, 122001. https://doi.org/10.1016/j.applthermaleng.2023.122001
Abdeldayem, A., Paggini, A., Diurnal, T., Orazi, C., White, M., Ruggiero, M., Sayma, A., 2024, “Integrated aerodynamic and mechanical design of a large-scale axial turbine operating with supercritical carbon dioxide mixtures”, Journal of Engineering for Gas Turbines and Power, 146(2), 021011. https://doi.org/10.1115/1.4063530
Ogrodniczak, P., White, M., 2023, “Non-equilibrium CFD simulation of the wet-to-dry expansion of the siloxane MM in a converging-diverging nozzle”, Applied Thermal Engineering. https://doi.org/10.1016/j.applthermaleng.2023.121158
Abdeldayem, A., Salah, S., White, M., Salma, A., 2023, “A modified loss breakdown approach for axial turbines operating with blended supercritical carbon dioxide”, Journal of Engineering for Gas Turbines and Power. https://doi.org/10.1115/1.4062478
Salah, S., Crespi, F., White, M., Munoz, A., Paggini, A., Ruggiero, M., Sanchez, D., Salma, A., 2023, “Axial turbine flow path design for concentrated solar power plants operating with CO₂ blends”, Applied Thermal Engineering, 230(A), 120612. https://doi.org/10.1016/j.applthermaleng.2023.120612
Abdeldayem, A., White, M., Paggini, A., Ruggiero, M., Sayma, A., 2022, “Integrated aerodynamic and structural blade shape optimisation of axial turbines operating with supercritical carbon dioxide blended with dopants”, Journal of Engineering for Gas Turbines and Power, 144(10), 101016. https://doi.org/10.1115/1.4055232
Salah, S., White, M., Sayma, A., 2022, “A comparison of axial turbine loss models for air, sCO₂ and ORC turbines across a range of scales”, International Journal of Thermofluids, 15, 100156. https://doi.org/10.1016/j.ijft.2022.100156
White, M., 2021, “Investigating the wet-to-dry expansion of organic fluids for power generation”, International Journal of Heat and Mass Transfer, 192, 122921. https://doi.org/10.1016/j.ijheatmasstransfer.2022.122921
White, M., 2021, “Cycle and turbine optimisation for an ORC operating with two-phase expansion”, Applied Thermal Engineering, 192, 116852. https://doi.org/10.1016/j.applthermaleng.2021.116852
Aqel, O., White, M., Khader, M., Sayma, A., 2021, “Sensitivity of transcritical cycle and turbine design to dopant fraction in CO₂-based working fluids”, Applied Thermal Engineering, 190, 116796. https://doi.org/10.1016/j.applthermaleng.2021.116796
White, M., Bianchi, G., Chai, L., Tassou, S., Sayma, A., 2021, “Review of supercritical CO₂ technologies and systems for power generation”, Applied Thermal Engineering, 185, 116447. doi: https://doi.org/10.1016/j.applthermaleng.2020.116447
White, M., Read, M., Sayma, A., 2020, “Making the case for cascaded organic Rankine cycles for waste-heat recovery”, Energy, 211, 118912. https://doi.org/10.1016/j.energy.2020.118912
Salah, S.I., Khader, M.A., White, M., Sayma, A., 2020, “Mean-line design of a supercritical CO2 micro axial turbine”, Applied Sciences, 10(15), 5069. https://doi.org/10.3390/app10155069
White, M., Sayma, A., 2020, “A new method to identify the optimal temperature of latent-heat thermal-energy storage systems for power generation from waste heat”, International Journal of Heat and Mass Transfer, 149, 119111. https://doi.org/10.1016/j.ijheatmasstransfer.2019.119111
White, M., Sayma, A., 2019, “Simultaneous cycle optimization and fluid selection for ORC systems accounting for the effect of the operating conditions on turbine efficiency”, Front Energy Res, 7, 50. https://doi.org/10.3389/fenrg.2019.00050
White, M., Oyewunmi, O., Chatzopoulou, M. et al., 2018, “Computer-aided working-fluid design and thermoeconomic optimisation of novel ORC systems for waste-heat recovery applications”, Energy, 161, 1181—1198. https://doi.org/10.1016/j.energy.2018.07.098
White, M., Sayma, A., 2018, “A generalised assessment of working fluids and radial turbines for non-recuperated subcritical organic Rankine cycles”, Energies, 11(4), 800. https://doi.org/10.3390/en11040800
White, M., Sayma, A., Markides, C., 2018, “Working-fluid replacement in supersonic organic Rankine cycle turbines”, J Eng Gas Turb Power, 140(9), 091703. https://doi.org/10.1115/1.4038754
White, M., Oyewunmi, O., Chatzopoulou, M. et al., 2017, “Integrated computer-aided working-fluid design and thermoeconomic ORC system optimisation”, Enrgy Proced, 129(9), 152—159. https://doi.org/10.1016/j.egypro.2017.09.095
Unamba, C., White, M., Sapin, P. et al., 2017, “Experimental investigation of the operating point of a 1 kW ORC system”, Enrgy Proced, 129(9), 875—882. https://doi.org/10.1016/j.egypro.2017.09.211
White, M., Oyewunmi, O., Haslam, A., et al., 2017, “Industrial waste-heat recovery through integrated computer-aided working-fluid and ORC system optimisation using SAFT-γ Mie”, Energ Convers Manage, 150, 851—869. https://doi.org/10.1016/j.enconman.2017.03.048
White, M., Sayma, A., Markides, C., 2017, “Supersonic flow of non-ideal fluids in nozzles: An application of similitude theory and lessons for ORC turbine design and flexible use considering system performance”, J Phys Conf Ser, 821, 012002. https://doi.org/10.1088/1742-6596/821/1/012002
White, M., Sayma, A., 2016, “Improving the economy-of-scale of small organic Rankine cycle systems through appropriate working fluid selection”, Appl Energ, 183, pp. 1227—1239. https://doi.org/10.1016/j.apenergy.2016.09.055
White, M., Sayma, A., 2015, “The impact of component performance on the overall cycle performance of small-scale low temperature organic Rankine cycles”, IOP Conf Ser-Mat Sci, 90, 012063. https://doi.org/10.1088/1757-899X/90/1/012063
White, M., Sayma, A., 2015, “The application of similitude theory for the performance prediction of radial turbines within small-scale low temperature organic Rankine cycles”, J Eng Gas Turb Power, 137(12), 122605. https://doi.org/10.1115/1.4030836
White, M., Sayma, A., 2015, “System and component modelling and optimisation for an efficient 10 kWe low-temperature organic Rankine cycle utilising a radial inflow expander”, P I Mech Eng A-J Pow, 229(7), 795—809. https://doi.org/10.1177/0957650915574211

Books

Handagama, N., White, M., Sapin, P., Markides, C., 2023, “Renewable and Waste-heat Utilisation Technologies”, Cambridge University Press. https://doi.org/10.1017/9781108691093

Books (Edited)

White, M., El Samad, T., Karathanassis, I., Sayma, A., Pini, M., Guardone, A., 2023, “Proceedings of the 4th International Seminar on Non-Ideal Compressible Fluid Dynamics for Propulsion and Power”, Springer. https://doi.org/10.1007/978-3-031-30936-6

Conference papers

Westpfel, C., Ogrodniczak, P., White, M., 2024, “Design of a two-phase blowdown test facility”, 5th International Seminar on Non-Ideal Compressible Fluid Dynamics for Propulsion & Power, 30-31st October, Lyon, France.
El-Baz, O., El Samad, T., Ghavami, M., White, M.T., Sayma, A.I., 2024, “Commissioning and preliminary testing of the NextORC facility”, 5th International Seminar on Non-Ideal Compressible Fluid Dynamics for Propulsion & Power, 30-31st October, Lyon, France.
Aqel, O., White, M., Sayma, A., 2024, “CO2-based power cycles: What effect does additive molecular complexity have on the cycle layout?”, Proceedings of ASME Turbo Expo 2024, 24-28th June, London United Kingdom.
Ghamvami, M., White, M.T., Chibli, H., Sayma, A.I., 2024, “Design and simulation of a blowdown facility for supercritical carbon dioxide”, Proceedings of ASME Turbo Expo 2024, 24-28th June, London United Kingdom.
White, M., 2023, “pocketORC: A browser-based calculator for teaching organic Rankine cycle power systems”, 7th International Seminar on ORC Power Systems, 4-6th September, Seville, Spain.
Ogrodniczak, P., Sayma, A., White, M., 2023, “Pressure profile optimisation of a nozzle for wet-to-dry expansion”, 7th International Seminar on ORC Power Systems, 4-6th September, Seville, Spain.
Abdeldayem, A., Paggini, A., Diurnal, T., Orazi, C., White, M., Ruggiero, M., Sayma, A., 2023, “Integrated aerodynamic and mechanical design of a large-scale axial turbine operating with supercritical carbon dioxide mixtures”, GT2023 ASME Turbo Expo, 26-30th June, Boston, Massachusetts. https://doi.org/10.1115/GT2023-102236
Aqel, O., White, M., Sayma, A., 2023, “Loss analysis of radial inflow turbines for supercritical CO₂ mixtures”, GT2023 ASME Turbo Expo, 26-30th June, Boston, Massachusetts. https://doi.org/10.1115/GT2023-102556
Salah, S., White, M., Sayma, A., 2023, “A comparison of flow path designs for axial turbines operating with pure CO₂ and CO₂ mixtures”, GT2023 ASME Turbo Expo, 26-30th June, Boston, Massachusetts. https://doi.org/10.1115/GT2023-101511
Abdeldayem, A., Salah, S., Aqel, O., White, M., Salma, A., 2023, “Design of a 130 MW axial turbine operating with a supercritical carbon dioxide mixture for the SCARABEUS project”, 15th European Conference on Turbomachinery Fluid Dynamics & Thermodynamics, 24-28 April, Budapest, Hungary.
Ogrodniczak, P., White, M.., 2022, “Numerical validation of a two-phase nozzle design tool based on the two-fluid model applied to wet-to-dry expansion of organic fluids”, Proceedings of the 4th International Seminar on Non-Ideal Compressible Fluid Dynamics: NICFD 2022, 3-4 November, London, UK.
White, M., Turunen-Saaresti, T., 2021, “Simulation of a supersonic stator vane under two-phase inlet conditions”, 6th International Seminar on ORC Power Systems, 11-13th October, Munich, Germany. https://doi.org/10.14459/2021mp1632898
Abdeldayem, A., White, M., Sayma, A., 2021, “Comparison of CFD predictions of supercritical carbon dioxide axial flow turbines using a number of turbulence models”, GT2021 ASME Turbo Expo, 7-11th June, Online. https://doi.org/10.1115/GT2021-58883
Aqel, O., White, M., Sayma, A., 2021, “Binary interaction uncertainty in the optimisation of a transcritical cycle: Consequences on cycle and turbine design”, The 4th European sCO2 Conference for Energy Systems, 23-24th March, Online. https://doi.org/10.17185/duepublico/73959
White, M., 2020, “Investigating the validity of the fundamental derivative in the equilibrium and non-equilibrium two-phase expansion of MM”, 3^rd International Seminar on Non-Ideal Compressible Fluid Dynamics for Propulsion and Power, 29-30th October, Delft, Netherlands. https://doi.org/10.1007/978-3-030-69306-0_1
White, M., Sayma, A., 2020, “Fluid selection for small-scale Rankine cycle plants: Can you draw some lines in the sand?”, IIR Rankine 2020 Conference - Advances in Cooling, Heating and Power Generation, 27-31st July, Glasgow, UK. https://iifiir.org/en/fridoc/142633
White, M., Read, M., Sayma, A., 2019, “Comparison between single and cascaded organic Rankine cycle systems accounting for the effects of expansion volume ratio on expander performance”, IOP Conf Ser: Mater Sci Eng, 604, 012086. https://doi.org/10.1088/1757-899X/604/1/012086
White, M., Read, M., Sayma, A., 2019, “A comparison between cascaded and single-stage ORC systems taken from the component perspective”, Proceedings of the 5th International Seminar on ORC Power Systems, September 9-11, 2019, Athens, Greece, ISBN: 978-90-9032038-0. https://www.orc2019.com/online/proceedings/display_manuscript/113.htm
White, M., Read, M., Sayma, A., 2018, “Using a cubic equation of state to identify optimal working fluids for an ORC operating with two-phase expansion using a twin-screw expander”, 17th International Refrigeration and Air Conditioning Conference, 9-12th July, Purdue, US. https://docs.lib.purdue.edu/iracc/1870
White, M., Read, M., Sayma, A., 2018, “Optimisation of cascaded organic Rankine cycle systems for high-temperature waste-heat recovery”, 31st International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, 17-22nd June, Guimareas, Portugal.
White, M., Sayma, A., 2018, “Design of a closed-loop optical-access supersonic test facility for organic vapours”, GT2018 ASME Turbo Expo, 11-15th June, Oslo, Norway. https://doi.org/10.1115/GT2018-75301
White, M., Sayma, A., 2018, “A preliminary comparison of different turbine architectures for a 100 kW supercritical CO2 Rankine cycle turbine”, The 6th International Supercritical CO2 Power Cycles Symposium, 27-29th March, Pittsburgh, U.S.
White, M., Oyewunmi, O., Haslam, A., et al., 2017, “Exploring optimal working fluids and cycle architetures for organic Rankine cycle systems using advanced computer-aided molecular design methodologies”, HEFAT, 17-19th July, Portoroz, Slovenia.
Oyewunmi, O., White, M., Chatzopoulou, M., et al., 2017, “Integrated computer-aided working-fluid design and power system optimisation: Beyond thermodynamic modelling”, 30th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, 2-6th July, San Diego, U.S.
White, M., Oyewunmi, O., Haslam, A., et al., 2017, “High-efficiency waste-heat recovery through computer-aided integrated working-fluid and ORC system optimisation”, SusTEM 2017, 28-30th June, Alkmaar, Netherlands.
White, M., Sayma, A., 2016, “Investigating the effect of changing the working fluid on the three-dimensional flow within organic Rankine cycle turbines”, GT2016 ASME Turbo Expo, 13-17th June, Seoul, South Korea.
White, M., Sayma, A., 2015, “The one-dimensional meanline design of radial turbines for small scale low temperature organic Rankine cycles”, GT2015 ASME Turbo Expo, 15-19th June, Montreal, Canada.