Rate My Professor Abulnaser Sayma

Professor Sayma's research specializations encompass the development of innovative turbomachinery designs and thermal power cycles for diverse temperature ranges. Key areas include low-temperature waste heat recovery via organic Rankine cycles, waste heat upgrading with heat pumps, intermediate-temperature power generation using supercritical carbon dioxide cycles, and high-temperature power production through Brayton cycles for micro gas turbines and gas turbines. He also advances technologies for thermal energy storage employing phase change materials across low, high, and ultrahigh temperatures. His PhD supervision covers turbomachinery design, analysis, and innovations in thermal power cycles such as gas turbines, organic Rankine cycles, supercritical CO2 cycles, and high-temperature heat pumps. Notable publications feature "A review of compressors for high temperature heat pumps" in Thermal Science and Engineering Progress (2024), "Aerothermal Investigation of the Effect of Endwall Riblets" (2025), "Supercritical CO2 power cycle control strategies: A review" (2025), "Design of micro-channel based actively cooled thermal shields" (2026), and several works on loss analysis and design optimization in radial inflow turbines and axial turbines for supercritical CO2 applications. With over 3,500 citations on Google Scholar, his contributions significantly influence the field of energy engineering.