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Jouhara, H., Żabnieńska-Góra, A., Delpech, B. , Olabi, V., El Samad, T. ORCID: 0000-0003-1590-9885 & Sayma, A. I. ORCID: 0000-0003-2315-0004view all authors (2024). High-temperature heat pumps: fundamentals, modelling approaches and applications. Energy, 303, article number 131882. doi: 10.1016/j.energy.2024.131882

Ghavami, M. ORCID: 0000-0002-0772-7726, White, M. T., Chibli, H. & Sayma, A. I.view all authors (2024). Design and Simulation of a Blowdown Facility for Supercritical Carbon Dioxide. In: Proceedings of ASME Turbo Expo 2024. ASME Turbo Expo 2024: Turbomachinery Technical Conference and Exposition, 24-28 Jun 2024, London, UK. doi: 10.1115/gt2024-129415

Khader, M. A. ORCID: 0000-0002-5771-2258, Ghavami, M. ORCID: 0000-0002-0772-7726, Al-Zaili, J. ORCID: 0000-0003-4072-2107 & Sayma, A. I. ORCID: 0000-0003-2315-0004view all authors (2024). Residential Micro-CHP system with integrated Phase change material thermal energy storage. Energy, 300, article number 131606. doi: 10.1016/j.energy.2024.131606

El Samad, T. ORCID: 0000-0003-1590-9885, Żabnieńska-Góra, A., Jouhara, H. & Sayma, A. I. ORCID: 0000-0003-2315-0004view all authors (2024). A review of compressors for high temperature heat pumps. Thermal Science and Engineering Progress, 51, article number 102603. doi: 10.1016/j.tsep.2024.102603

Abdeldayem, A. S., Salah, S. I., Aqel, O. A. , White, M. T. ORCID: 0000-0002-7744-1993 & Sayma, A. I. ORCID: 0000-0003-2315-0004view all authors (2024). Design of a 130 MW Axial Turbine Operating with a Supercritical Carbon Dioxide Mixture for the SCARABEUS Project. International Journal of Turbomachinery, Propulsion and Power, 9(1), article number 5. doi: 10.3390/ijtpp9010005

Abdeldayem, A., Paggini, A., Diurno, T. , Orazi, C., White, M. ORCID: 0000-0002-7744-1993, Ruggiero, M. & Sayma, A. I. ORCID: 0000-0003-2315-0004view all authors (2024). Integrated Aerodynamic and Mechanical Design of a Large-Scale Axial Turbine Operating With A Supercritical Carbon Dioxide Mixture. Journal of Engineering for Gas Turbines and Power, 146(2), article number 021011. doi: 10.1115/1.4063530

Salah, S. I., Abdeldayem, A. S., White, M. ORCID: 0000-0002-7744-1993 & Sayma, A. I. ORCID: 0000-0003-2315-0004view all authors (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, article number 122001. doi: 10.1016/j.applthermaleng.2023.122001

Abdeldayem, A., Paggini, A., Diurno, T. , Orazi, C., White, M. ORCID: 0000-0002-7744-1993, Ruggiero, M. & Sayma, A. I. ORCID: 0000-0003-2315-0004view all authors (2023). Integrated Aerodynamic and Mechanical Design of a Large-Scale Axial Turbine Operating With Supercritical Carbon Dioxide Mixtures. In: Proceedings of the ASME Turbo Expo 2023. ASME Turbo Expo 2023: Turbomachinery Technical Conference and Exposition, 26-30 Jun 2023, Boston, USA. doi: 10.1115/GT2023-102236

Abdeldayem, A. S., Salah, S. I., White, M. T. ORCID: 0000-0002-7744-1993 & Sayma, A. I. ORCID: 0000-0003-2315-0004view all authors (2023). A Modified Loss Breakdown Approach for Axial Turbines Operating With Blended Supercritical Carbon Dioxide. Journal of Engineering for Gas Turbines and Power, 145(8), article number 081002. doi: 10.1115/1.4062478

Salah, S., Crespi, F., White, M. ORCID: 0000-0002-7744-1993 , Munoz, A., Paggini, A., Ruggiero, M., Sanchez, D. & Sayma, A. I. ORCID: 0000-0003-2315-0004view all authors (2023). Axial turbine flow path design for concentrated solar power plants operating with CO2 blends. Applied Thermal Engineering, 230(Part A), article number 120612. doi: 10.1016/j.applthermaleng.2023.120612

Sharma, K., Al-Zaili, J. ORCID: 0000-0003-4072-2107 & Sayma, A. I. ORCID: 0000-0003-2315-0004 (2023). A System Dynamics Approach to Assess the Impact of Policy Interventions on the Market Penetration of Micro Gas Turbines. In: Proceedings of the ASME Turbo Expo. ASME Turbo Expo 2023 Turbomachinery Technical Conference and Exposition, 26-30 Jun 2023, Boston, USA. doi: 10.1115/GT2023-101952

Abuhaiba, A. ORCID: 0009-0008-4076-4888, Assadi, M., Apostolopoulou, D. ORCID: 0000-0002-9012-9910 , Al-Zaili, J. ORCID: 0000-0003-4072-2107 & Sayma, A. I. ORCID: 0000-0003-2315-0004view all authors (2023). Power Transmission and Control in Microturbines’ Electronics: A Review. Energies, 16(9), article number 3901. doi: 10.3390/en16093901

Abdeldayem, A., Salah, S., Aqel, O. , White, M. ORCID: 0000-0002-7744-1993 & Sayma, A. I. ORCID: 0000-0003-2315-0004view all authors (2023). Design of a 130 MW axial turbine operating with a supercritical carbon dioxide mixture for the SCARABEUS project. In: European Conference on Turbomachinery Fluid Dynamics and Thermodynamics, ETC. 15th European Conference on Turbomachinery Fluid dynamics & Thermodynamics, 24-28 Apr 2023, Budapest, Hungary.

Aqel, O., White, M. ORCID: 0000-0002-7744-1993 & Sayma, A. I. ORCID: 0000-0003-2315-0004 (2023). Loss Analysis in Radial Inflow Turbines for Supercritical CO2 Mixtures. In: Proceedings of the ASME Turbo Expo. ASME Turbo Expo 2023: Turbomachinery Technical Conference and Exposition, 26-30 Jun 2023, Boston, USA. doi: 10.1115/GT2023-102556

Salah, S., White, M. ORCID: 0000-0002-7744-1993 & Sayma, A. I. ORCID: 0000-0003-2315-0004 (2022). A comparison of axial turbine loss models for air, sCO₂ and ORC turbines across a range of scales. International Journal of Thermofluids, 15, article number 100156. doi: 10.1016/j.ijft.2022.100156

Ghavami, M. ORCID: 0000-0002-0772-7726, Al-Zaili, J. ORCID: 0000-0003-4072-2107 & Sayma, A. I. ORCID: 0000-0003-2315-0004 (2022). A methodology for techno-economic and operation strategy optimisation of micro gas turbine-based solar powered dish-engine systems. Energy, 251, article number 123873. doi: 10.1016/j.energy.2022.123873

Danieli, P., Lazzaretto, A., Al-Zaili, J. ORCID: 0000-0003-4072-2107 , Sayma, A. I., Masi, M. & Carraro, G.view all authors (2022). The potential of the natural gas grid to accommodate hydrogen as an energy vector in transition towards a fully renewable energy system. Applied Energy, 313, article number 118843. doi: 10.1016/j.apenergy.2022.118843

Khader, M. A. ORCID: 0000-0002-5771-2258, Ghavami, M. ORCID: 0000-0002-0772-7726, Al-Zaili, J. ORCID: 0000-0003-4072-2107 & Sayma, A. I. ORCID: 0000-0003-2315-0004view all authors (2021). Heat Transfer Effect on Micro Gas Turbine Performance for Solar Power Applications. Energies, 14(20), article number 6745. doi: 10.3390/en14206745

AbdElDayem, A., White, M. ORCID: 0000-0002-7744-1993 & Sayma, A. I. ORCID: 0000-0003-2315-0004 (2021). Comparison of CFD predictions of supercritical carbon dioxide axial flow turbines using a number of turbulence models. In: Proceedings of the ASME Turbo Expo 2021: Turbomachinery Technical Conference and Exposition. ASME Turbo Expo 2021: Turbomachinery Technical Conference and Exposition, 7-11 Jun 2021, Online. doi: 10.1115/GT2021-58883

Yang, J., Xiao, G., Ghavami, M. ORCID: 0000-0002-0772-7726 , Al-Zaili, J. ORCID: 0000-0003-4072-2107, Yang, T., Sayma, A. I. ORCID: 0000-0003-2315-0004 & Ni, D.view all authors (2021). Thermodynamic modelling and real-time control strategies of solar micro gas turbine system with thermochemical energy storage. Journal of Cleaner Production, 304, article number 127010. doi: 10.1016/j.jclepro.2021.127010

Aqel, O., White, M. ORCID: 0000-0002-7744-1993 & Sayma, A. I. ORCID: 0000-0003-2315-0004 (2021). Binary interaction uncertainty in the optimisation of a transcritical cycle: Consequences on cycle and turbine design. Paper presented at the 4th European sCO2 Conference for Energy Systems, 23-24 Mar 2021, Online. doi: 10.17185/duepublico/73959

White, M. ORCID: 0000-0002-7744-1993, Bianchi, G., Chai, L. , Tassou, S. A. & Sayma, A. I. ORCID: 0000-0003-2315-0004view all authors (2021). Review of supercritical CO2 technologies and systems for power generation. Applied Thermal Engineering, 185(116447), article number 116447. doi: 10.1016/j.applthermaleng.2020.116447

Aqel, O., White, M. ORCID: 0000-0002-7744-1993, Khader, M. A. ORCID: 0000-0002-5771-2258 & Sayma, A. I. ORCID: 0000-0003-2315-0004view all authors (2021). Sensitivity of transcritical cycle and turbine design to dopant fraction in CO2-based working fluids. Applied Thermal Engineering, 190, article number 116796. doi: 10.1016/j.applthermaleng.2021.116796

White, M. ORCID: 0000-0002-7744-1993, Read, M. G. ORCID: 0000-0002-7753-2457 & Sayma, A. I. ORCID: 0000-0003-2315-0004 (2020). Making the case for cascaded organic Rankine cycles for waste-heat recovery. Energy, 211, article number 118912. doi: 10.1016/j.energy.2020.118912

White, M. ORCID: 0000-0002-7744-1993 & Sayma, A. I. (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, article number 119111. doi: 10.1016/j.ijheatmasstransfer.2019.119111

White, M. ORCID: 0000-0002-7744-1993 & Sayma, A. I. ORCID: 0000-0003-2315-0004 (2020). Fluid Selection for Small-Scale Rankine Cycle Plants: Can You Draw Some Lines in the Sand?. IIR Rankine Conference 2020, article number 1161. doi: 10.18462/iir.rankine.2020.1161

Salah, S., Khader, M. A., White, M. T. ORCID: 0000-0002-7744-1993 & Sayma, A. I. ORCID: 0000-0003-2315-0004view all authors (2020). Mean-Line Design of a Supercritical CO2 Micro Axial Turbine. Applied Sciences, 10(15), article number 5069. doi: 10.3390/app10155069

Iaria, D., Zhou, X., Al Zaili, J. ORCID: 0000-0003-4072-2107 , Zhang, Q., Xiao, G. & Sayma, A. I.view all authors (2019). Development of a Model for Performance Analysis of a Honeycomb Thermal Energy Storage for Solar Power Microturbine Applications. Energies, 12(20), article number 3968. doi: 10.3390/en12203968

White, M. ORCID: 0000-0002-7744-1993, Read, M. G. ORCID: 0000-0002-7753-2457 & Sayma, A. I. ORCID: 0000-0003-2315-0004 (2019). A comparison between cascaded and single-stage ORC systems taken from the component perspective. In: Sotirios, K. & Kakaras, E. (Eds.), Proceedings of the 5th International Seminar on ORC Power Systems.

White, M. ORCID: 0000-0002-7744-1993, Read, M. G. & Sayma, A. I. (2019). Comparison between single and cascaded organic Rankine cycle systems accounting for the effects of expansion volume ratio on expander performance. IOP Conference Series: Materials Science and Engineering, 604(1), article number 12086. doi: 10.1088/1757-899X/604/1/012086

White, M. ORCID: 0000-0002-7744-1993 & Sayma, A. I. (2019). Simultaneous Cycle Optimization and Fluid Selection for ORC Systems Accounting for the Effect of the Operating Conditions on Turbine Efficiency. Frontiers in Energy Research, 7(JUN), article number 50. doi: 10.3389/fenrg.2019.00050

Khader, M. A. ORCID: 0000-0002-5771-2258 & Sayma, A. I. ORCID: 0000-0003-2315-0004 (2018). Drag reduction within radial turbine rotor passages using riblets. Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering, 236(1), pp. 14-25. doi: 10.1177/0954408918819399

White, M. ORCID: 0000-0002-7744-1993, Read, M. G. ORCID: 0000-0002-7753-2457 & Sayma, A. I. ORCID: 0000-0003-2315-0004 (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. In: International Refrigeration and Air Conditioning Conference. 17th International Refrigeration and Air Conditioning Conference, 09-12 Jul 2018, West Lafayette, USA.

White, M. ORCID: 0000-0002-7744-1993, Read, M. G. & Sayma, A. I. (2018). Optimisation of cascaded organic Rankine cycle systems for high-temperature waste-heat recovery. Paper presented at the ECOS 2018 - The 31st International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, 17 - 22 June 2018, Guimarães, Portugal.

White, M. ORCID: 0000-0002-7744-1993 & Sayma, A. I. ORCID: 0000-0003-2315-0004 (2018). Design of a closed-loop optical-access supersonic test facility for organic vapours. In: ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition. ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition, 11-15 Jun 2018, Oslo, Norway. doi: 10.1115/GT2018-75301

White, M. ORCID: 0000-0002-7744-1993 & Sayma, A. I. ORCID: 0000-0003-2315-0004 (2018). A generalised assessment of working fluids and radial turbines for organic Rankine cycles. Energies, 11(4), article number 800. doi: 10.3390/en11040800

White, M. ORCID: 0000-0002-7744-1993 & Sayma, A. I. ORCID: 0000-0003-2315-0004 (2018). A preliminary comparison of different turbine architectures for a 100 kW supercritical CO2 Rankine cycle turbine. Paper presented at the The 6th International Supercritical CO2 Power Cycles Symposium, 27 - 29 Mar 2018, Pittsburgh, Pennsylvania.

Iaria, D., Nipkey, H., Al Zaili, J. , Sayma, A. I. ORCID: 0000-0003-2315-0004 & Assadi, M.view all authors (2018). Development and Validation of a Thermo-Economic Model for Design Optimisation and Off-Design Performance Evaluation of a Pure Solar Microturbine. Energies, 11(11), article number 3199. doi: 10.3390/en11113199

White, M. ORCID: 0000-0002-7744-1993, Markides, C. & Sayma, A. I. (2017). Working-Fluid replacement in supersonic organic Rankine Cycle Turbines. Journal of Engineering for Gas Turbines and Power, 140(9), article number 091703. doi: 10.1115/1.4038754

Al Zaili, J. ORCID: 0000-0003-4072-2107, Sayma, A. I. ORCID: 0000-0003-2315-0004 & Iaria, D. (2017). Reducing Levelised Cost of Energy and Environmental Impact of a Hybrid Microturbine-Based Concentrated Solar Power Plant. In: Proceedings of Shanghai 2017 Global Power and Propulsion Forum 30th October–1st November, 2017. 2017Global Power and PropulsionForum, 30th October - 1st November 2017, Shanghai, China.

Khader, M. A. & Sayma, A. I. (2017). Effect of end-wall riblets on radial turbine performance. IOP Conference Series: Materials Science and Engineering, 232(1), article number 012075. doi: 10.1088/1757-899x/232/1/012075

Ghavami, M. ORCID: 0000-0002-0772-7726, Alzaili, J. ORCID: 0000-0003-4072-2107, Sayma, A. I. ORCID: 0000-0003-2315-0004 & ASMEview all authors (2017). A Comparative Study of the Control Strategies for Pure Concentrated Solar Power Micro Gas Turbines. In: Proceedings of the ASME Turbo Expo. ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition, 26-30 Jun 2017, Charlotte, NC USA. doi: 10.1115/gt2017-63987

Ioannou, E. & Sayma, A. I. (2017). Full Annulus Numerical Study of Hot Streaks Propagation in a Hydrogen-rich Syngas-Fired Heavy Duty Axial Turbine. Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, 231(5), pp. 344-356. doi: 10.1177/0957650917706861

Li, Y. & Sayma, A. I. (2017). Computational Fluid Dynamics Simulation of Surge in a Three Stage Axial Compressor. International Journal of Turbines & Sustainable Energy Systems, 1(1), doi: 10.4273/ijtse.1.1.04

White, M. ORCID: 0000-0002-7744-1993, Sayma, A. I. & 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. Journal of Physics: Conference Series, 821(1), article number 012002. doi: 10.1088/1742-6596/821/1/012002

Sayma, A. I., Iaria, D., Khader, M. & Al Zaili, J. ORCID: 0000-0003-4072-2107view all authors (2017). Multi-Objective Optimisation of A Centrifugal Compressor for a Micro Gas Turbine Operated by Concentrated Solar Power. In: Proceedings of the Global Power and Propulsion Forum 2017.

Sayma, A. I. (2017). Gas Turbines for Marine Applications. In: Carlton, J., Jukes, P. & Sang, C-Y. (Eds.), Encyclopedia of Maritime and Offshore Engineering. (pp. 1-10). John Wiley & Sons, Ltd.. doi: 10.1002/9781118476406.emoe227

White, M. ORCID: 0000-0002-7744-1993 & Sayma, A. I. (2016). Improving the economy-of-scale of small organic rankine cycle systems through appropriate working fluid selection. Applied Energy, 183, pp. 1227-1239. doi: 10.1016/j.apenergy.2016.09.055

Sayma, A. I. ORCID: 0000-0003-2315-0004 & Al Zaili, J. ORCID: 0000-0003-4072-2107 (2016). Challenges in the Development of Micro Gas Turbines for Concentrated Solar Power Systems. Paper presented at the 8th International Gas Turbine Conference – The Future of Gas Turbine Technology, 12-13 Oct 2016, Brussels, Belgium.

White, M. ORCID: 0000-0002-7744-1993 & Sayma, A. I. (2015). The Application of Similitude Theory for the Performance Prediction of Radial Turbines Within Small-Scale Low-Temperature Organic Rankine Cycles. Journal of Engineering for Gas Turbines and Power, 137(12), pp. 1-10. doi: 10.1115/1.4030836

White, M. ORCID: 0000-0002-7744-1993 & Sayma, A. I. (2015). System and component modelling and optimisation for an efficient 10 kWe low-temperature organic Rankine cycle utilising a radial inflow expander. Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, 229(7), pp. 795-809. doi: 10.1177/0957650915574211

White, M. ORCID: 0000-0002-7744-1993 & Sayma, A. I. (2015). The impact of component performance on the overall cycle performance of small-scale low temperature organic Rankine cycles. IOP Conference Series: Materials Science and Engineering, 90(1), article number 012063. doi: 10.1088/1757-899x/90/1/012063

White, M. ORCID: 0000-0002-7744-1993 & Sayma, A. I. (2015). The one-dimensional meanline design of radial turbines for small scale low temperature organic rankine cycles. In: ASME Turbo Expo 2015: Turbine Technical Conference and Exposition. ASME Turbo Expo 2015: Turbine Technical Conference and Exposition, 15-19 Jun 2015, Montreal, Canada. doi: 10.1115/GT2015-42466

Li, Y. & Sayma, A. I. (2014). Computational fluid dynamics simulations of blade damage effect on the performance of a transonic axial compressor near stall. Proceedings of the Institution of Mechanical Engineers Part C: Journal of Mechanical Engineering Science, 229(12), pp. 2242-2260. doi: 10.1177/0954406214553828

Li, Y-L. & Sayma, A. I. (2014). Numerical investigation of VSVs mal-schedule effects in a threestage axial compressor. Paper presented at the ASME Turbo Expo 2014: Turbine Technical Conference and Exposition, 16-06-2014 - 20-06-2014, Dusseldorf, Germany. doi: 10.1115/GT2014-25145

Moghaddam, E.R., Long, C. & Sayma, A. I. (2013). A numerical investigation of moment coefficient and flow structure in a rotor-stator cavity with rotor-mounted bolts. PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART A-JOURNAL OF POWER AND ENERGY, 227(3), pp. 306-327. doi: 10.1177/0957650912473543

Li, Y. & Sayma, A. I. (2012). Effects of blade damage on the performance of a transonic axial compressor rotor. Paper presented at the ASME Turbo Expo 2012: Turbine Technical Conference and Exposition, 11-06-2012 - 15-06-2012, Copenhagen, Denmark. doi: 10.1115/GT2012-68324

Nucara, P. & Sayma, A. I. (2012). Effects of using Hydrogen-rich syngas in industrial gas turbines while maintaining fuel flexibility on a multistage axial compressor design. Paper presented at the ASME Turbo Expo 2012: Turbine Technical Conference and Exposition, 11-06-2012 - 15-06-2012, Copenhagen, Denmark.

Nucara, P. & Sayma, A. I. (2011). Effects of using Hydrogen-rich Syngas in industrial gas turbines while maintaining fuel flexibility on compressor design. Paper presented at the ASME Turbo Expo 2011, 06-06-2011 - 10-06-2011, Vancouver, Canada. doi: 10.1115/GT2011-45589

Sayma, A. I. (2011). Towards virtual testing of compression systems in gas turbine engines. NAFEMS International Journal of CFD Case Studies, 9, pp. 29-42.

Wang, F., Sayma, A. I., Peng, Z. J. & Huang, Y.view all authors (2011). A multi-section droplet combustion model for spray combustion simulation. Paper presented at the ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition, 06-06-2011 - 10-06-2011, Vancouver, Canada. doi: 10.1115/GT2011-45023

Moghaddam, E.R., Coren, D., Long, C. & Sayma, A. I.view all authors (2011). A numerical investigation of moment coefficient and flow structure in a rotor-stator cavity with rotor mounted bolts. In: Proceedings of the ASME Turbo Expo. A NUMERICAL INVESTIGATION OF ROTOR BOLT WINDAGE WITHIN A ROTOR STATOR CAVITY, Vancouver, Canada. doi: 10.1115/GT2011-45588

Bohari, B. & Sayma, A. I. (2010). CFD analysis of effects of damage due to bird strike on fan performance. Paper presented at the ASME Turbo Expo 2010: Power for Land, Sea, and Air, 14-06-2010 - 18-06-2010, Glasgow, UK. doi: 10.1115/GT2010-22365

Wang, F., Leboeuf, F., Huang, Y. , Zhou, L. X. & Sayma, A. I.view all authors (2010). An algebraic sub-grid scale turbulent combustion model. Paper presented at the ASME Turbo Expo 2010: Power for Land, Sea, and Air, 14-06-2010 - 18-06-2010, Glasgow, UK. doi: 10.1115/GT2010-22033

di Mare, L., Imregun, M., Green, J. S. & Sayma, A. I.view all authors (2010). A numerical study of labyrinth seal flutter. Journal of Tribology, 132(2), pp. 1-7. doi: 10.1115/1.3204774

Chassaing, J. C., Sayma, A. I. & Imregun, M. (2008). A combined time and frequency domain approach for acoustic resonance prediction. Journal of Sound and Vibration, 311(3-5), pp. 1100-1113. doi: 10.1016/j.jsv.2007.10.006