Svetoslav Vlashki, MEng is a second generation refrigeration and heat pump systems specialist and has more than ten years of professional experience. He graduated with honours from the Technical University of Sofia, specialty Thermal Engineering. He received a scholarship from the Chamber of Engineers in the Investment Design. Currently Svetoslav Vlashki is an assistant and PhD student in the Department of Heating and Refrigeration Engineering at the Technical University of Sofia. Over the course of his professional career he has participated in many academic and commercial projects related to research, development, diagnostics and analysis of refrigeration and heat pump systems. He works as a consultant and performs technical control for one of the biggest Bulgarian and foreign companies. He conducts trainings in refrigeration systems and hydraulics in the HVAC. In 2016 Svetoslav Vlashki established company VLASHKI ENGINEERING LTD.

Borislav Stankov, PhD is an assistant in the Department of Heating and Refrigeration Engineering at the Technical University of Sofia. In 2010 he graduated from the Technical University of Sofia, specialty Thermal Engineering. At the time of his studies he won the ASHRAE’s honorary reward of the International Student Competition in the category Integrated Sustainable Building Design. In this period he worked as a trainee at the German branch of AREVA NP where he developed his thesis. In 2016 he completed PhD thesis in the specialty Energy Conversion Technologies and Systems and meanwhile he did several training courses among which is an education by the project PROMITHEAS-4 and distance education of Massachusetts Institute of Technology - Statistical Methods and Analysis. He has experience in participating in scientific and other projects in the field of energy efficiency of buildings and industrial systems. Since 2013 he has been a technical expert in the field of thermal imaging non-destructive control at Executive Agency Bulgarian Accreditation Service.