Kamil Śmierciew, PhD, DSc is an associate professor at Bialystok University of Technology. His Master’s degree was obtained in 2007 at Koszalin University of Technology, Poland. In 2011, he received his PhD in thermal engineering at the Szewalski Institute of Fluid-Flow Machinery Polish Academy of Sciences in Gdansk, Poland. Habilitation was obtained in 2019 at Bialystok University of Technology. Research field: ejectors, numerical modelling of thermal-flow processes, gas dynamic, heat exchangers, waste heat utilization, refrigeration systems and heat pumps, and CFD modelling. He is an expert of the National Refrigeration Forum – Employer’s Community with personal certification and examination in the refrigeration air-conditioning and heat pumps technology, member of Examination Committee of Renewable Energy Sources at the Office of Technical Inspection, member of commission E1: Conditionnement d'air, International Institute of Refrigeration, member of editorial Board: AIMS Energy, and member of editorial Board: AIMS Energy