Dr. Ahmad Arabkoohsar received his PhD degree in mechanical engineering from Federal University of Minas Gerais in Brazil. He then worked as a postdoctoral fellow, assistant professor, and associate professor at several European universities, including Aarhus University, Eindhoven University of Technology, and Aalborg University. Dr. Arabkoohsar is currently a senior researcher (associate professor) in the Department of Civil and Mechanical Engineering at the Technical University of Denmark (DTU). His main field of research includes thermodynamic modeling and optimization of thermal energy systems and energy storage systems, in which he has published numerous articles in top-ranked international journals, the monograph Mechanical Energy Storage Technologies, and several book chapters with leading scientific publishers. He has also given several keynote speeches, invited talks, and presentations for a variety of international scientific platforms, conferences, and events. Dr. Arabkoohsar serves as a member of the editorial board of several international journals, international conferences committees, and scientific panels.