U.S.-Pakistan Center for Advanced Studies in Energy
Faculty Abubakr Ayub Sheikh

Abubakr Ayub Sheikh

Assistant Professor
Summary

I hold PhD in Mechanical and Industrial Engineering with specialisation in the techno-economic assessment of supercritical and transcritical CO₂ closed Brayton cycles for power generation. My research focuses on advanced energy systems for decarbonization, including: 1. Alternative low-carbon fuels for the shipping sector 2. High-temperature heat pumps for industrial process heating 3. Desalination and post-desalination zero liquid discharge (ZLD) processes 4. PCM based thermal energy storage 5. CO₂ capture, liquefaction, and utilization 6. Advanced CO₂-based power cycles for heat recovery and solar power applications 7. Finite Element and CFD modeling of power cycle components 8. Design of radial and axial turbomachinery >> I am open to supervising MS and PhD students on related research topics.

Academic Background
PhD (Advanced carbon dioxide power cycles for CSP and industrial heat recovery) Brescia University January 28, 2019 - February 13, 2023
Honours and Awards
Publications
Towards greener shipping: Thermodynamic modelling and feasibility of methanol reforming, CO₂ capture and port-side CO2 utilisation for UK maritime corridors April 01, 2026 Journal of CO2 Utilization - Volume 106, Article Number 103374
Thermodynamic and economic viability of advanced thermodynamic cycles for power generation in cement plant: case study of Bestway Cement Plant August 01, 2025 Journal of Thermal Analysis and Calorimetry - Volume:150, Issue:16, Page:12447-12466
Utilization of locally sourced waste fats for biodiesel production: Experimental characterization and environmental life cycle assessment March 01, 2025 Biomass and Bioenergy - Volume:194, Article Number 107692
Thermodynamic optimization and performance study of supercritical CO2 thermodynamic power cycles with dry cooling using response surface method March 01, 2023 International Communications in Heat and Mass Transfer - Volume:142, Article Number 106675
Adoption of the CO2 + SO2 mixture as working fluid for transcritical cycles: A thermodynamic assessment with optimized equation of state March 01, 2022 Energy Conversion and Management - Volume:255, Article Number 115263
Carbon dioxide mixtures as working fluid for high-temperature heat recovery: A thermodynamic comparison with transcritical organic rankine cycles August 04, 2020 Energies - Volume:13, Issue:15, Article Number 4014
Exergetic optimization and comparison of combined gas turbine supercritical CO2 power cycles July 01, 2018 Journal of Renewable and Sustainable Energy - Volume:10, Issue:4, Article Number 044703
Conferences
Advanced thermodynamic power cycles utilizing carbon dioxide based mixtures as working fluids for high temperature waste heat recovery March 23, 2021 - March 24, 2021 Gioele di Marcoberardino, Costante Mario Invernizzi, Paolo Iora, Abubakr Ayub Sheikh, 4th European sCO2 Conference for energy systems
Thermal efficiency gains enabled by using supercritical CO2 mixtures in Concentrated Solar Power applications March 23, 2021 - March 24, 2021 Francesco Crespi, P. Rodríguez-de Arriba, David Sanchez, Abubakr Ayub Sheikh, Gioele di Marcoberardino, Costante mario Invernizzi, G.S.Martínez, Paolo Iora, D. Di Bona, M. Binotti, Giampaolo Manzolini, Giampaolo Manzolini, 4th European sCO2 Conference for energy systems
AKT Researcher Teesside University March 18, 2024 - July 16, 2024
Research Fellow Teesside University October 03, 2023 - October 31, 2025
Lab Engineer Capital University of Science and Technology, Islamabad October 01, 2015 - January 15, 2019