Professor Dušan Petráš from Slovak University of Technology in Bratislava-Slovakia, is the former vice-rector of STU and dean of the Faculty of Civil Engineering. Also he is the president of Slovakian HVAC-Association SSTP (Slovak Society of Environmental Technology) and the past-president REHVA (Representative European Heating, Ventilation Association).

Currently, he is the professor at the Department of Building services and dealing with the HVAC-systems in buildings. His scientific work is focused on the energy conservation by performance of the buildings with respect to the providing the health and comfortable indoor environment. He is author and coauthor of 15 books (Energy auditing of Buildings, Renewable Energy Sources for Low-temperature systems, Low-temperature heating and High-temperature cooling…), 50 scientific papers in foreign journals/on international conferences as well as about 100 lectures in 25 countries in 3 world languages. Professor Petráš is also member of AEE, ASHRAE, Academy of ISIAQ, REHVA Fellow, he was also the Guest Professor in DTU Lyngby (Denmark) and Guest Lecturer in FH Pinkafeld (Austria).