Prof. Bartosz Zajączkowski is a graduate of the Faculty of Mechanical and Power Engineering at Wrocław University of Science and Technology (2003, major in Mechanical Engineering, specialization in Process Equipment). He obtained his PhD in technical sciences (mechanics) in 2009, and his DSc degree in 2018 in the field of construction and operation of machines, for a series of publications on heat and mass transfer in sorption systems.

Since the beginning of his professional career, he has been affiliated with Wrocław University of Science and Technology. He gained international experience during research stays at SINTEF in Oslo (2004), RICOH in Yokohama (2005), San Diego State University (2009), and Stirling Cryogenics in the Netherlands under the Marie Curie program (2009–2010). In 2012, he participated in the Top 500 Innovators: Science – Management – Commercialization program at Stanford University. He actively collaborates with research centers in France (INSA Lyon, Université de Rennes 1, CNAM Paris), Germany (ILK Dresden), Spain (Universitat Jaume I Castellón), Italy (CNR Messina), and Norway (HVL Bergen).

Prof. Zajączkowski's scientific work focuses on advanced heat transfer technologies that combine classical thermal engineering processes with nanotechnology and research on structured heating surfaces. He conducts experimental studies on phase change phenomena and multiphase flows (liquid–gas and liquid–solid), with particular emphasis on boiling and condensation, as well as their applications in refrigeration, trigeneration systems, and waste heat recovery installations.

He is also involved in research on nanofluids and ferro-nanofluids, using their unique properties for thermal process control and controlled deposition of nanomaterials on heat exchange surfaces. In parallel, he develops studies on phase change materials (PCMs) for thermal energy storage and accumulation. A new direction in his research is the application of machine learning methods for the prediction and optimization of thermal processes and the design of adaptive, high-efficiency energy devices.

He has supervised two completed doctoral theses and served as assistant supervisor in two others. Currently, he is supervising four PhD candidates. Three of his doctoral students have received funding through NCN Preludium grants, and in 2024, two were awarded the Rector’s Award for the best PhD students at Wrocław University of Science and Technology.

He has led research projects funded by the National Science Centre (Opus and Preludium Bis), as well as commercial projects that resulted in the development and implementation of adsorption and absorption installations powered by district heating. He is actively involved in European research networks: he was a member of the management committees of COST Action CA15119 NANOUPTAKE, COST Action CA16144 RESTORE, and the COST Innovators Grant CIG-15119.

Prof. Zajączkowski's scientific output includes over 130 publications, including 42 in JCR-listed journals. He is also the author of a national patent for a carrier of the active agent.

Since 2021, he has served as Head of the Department of Thermal Sciences. From 2020 to 2024, he was Vice-Dean for General Affairs, and since 2024, he has been Vice-Dean for Cooperation and Research at the Faculty of Mechanical and Power Engineering. He is active in international and national scientific bodies: he is Vice-Chair of Commission B2 of the International Institute of Refrigeration, a member of Commissions B1 and D1, a former eight-year Chair of Technical Committee No. 5 for Refrigeration at the Polish Committee for Standardization, and a member of Academia Professorum Iuniorum (2025–2026). He serves as a reviewer for grant agencies and international scientific journals.

Prof. Zajączkowski teaches courses and supervises theses in the fields of refrigeration and thermal engineering. He also lectures at the Doctoral School, where he runs a course on grant proposal writing.

Privately, he is passionate about long-distance running and has completed several marathons, including in New York, Chicago, and Berlin.

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