Vodice The Imperial Park Hotel 26 - 28 March 2025
27 th International Conference on Heating, Cooling and Air-conditioning
ABSTRACT
PAPER
doc. dr. sc. Luka BOBAN University of Zagreb Faculty of Mechanical Engineering and Naval Architecture Ulica Ivana Lučića 5 10 000 Zagreb Croatia e-mail: luka.boban@fsb.unizg.hr
MP4
PRESENTATION VIDEO
He was born on 18 April 1989 in Split. He graduated from undergraduate and graduate studies in mechanical en- gineering at the Faculty of Mechanical Engineering and Naval Architecture of the University of Zagreb (FSB). He received his PhD in 2019, also at FSB, in the field of experimental and theoretical research of geothermal heat pumps. During his studies, he actively participated in the work of the Student Association for the Promotion of Ener- gy Efficiency and Consulting (SUPEUS) and the UNIZG University Team at the 'Solar Decathlon Europe' competition in 2014, and was also an external associate of the EGE magazine. After completing his studies, he first worked as an assistant manager on the project 'Research and Promotion of Shallow Geothermal Potentials in Croatia (Geo- Mapping)' financed by the Structural Funds. Since 2014, he has been working at the FSB's Department of Ther- modynamics, Thermal and Process Engineering, where he is currently an assistant professor and participates in teaching courses related to refrigeration processes and heat pumps, theoretical thermodynamics and mechanical operations, and his research interests include the field of refrigeration processes, heat pumps and natural working fluids. He has been an active member of the Technical Committee HZN/TO 86 'Refrigeration, air conditioning and heat pumps' at the Croatian Standards Institute since 2016 and the secretary of the Croatian Heat Pump Associ- ation (HUDiT) since 2019. He has published several papers in scientific journals and conference proceedings and participated in the preparation of several professional studies.
dr. sc. Saša MUDRINIĆ University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, Croatia prof. dr. Andrej KITANOVSKI University of Ljubljana, Faculty of Mechanical Engineering, Ljubljana, Slovenia
doc. dr. Katja KLINAR University of Ljubljana, Faculty of Mechanical Engineering, Ljubljana, Slovenia prof. dr. sc. Vladimir SOLDO University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, Croatia
EVALUATION OF WORKING FLUIDS FOR HIGH- TEMPERATURE REVERSED BRAYTON CYCLE HEAT PUMP
Decarbonizing energy-intensive industries is crucial for achieving a sustainable, carbon-neutral future, as industrial heat production significantly contrib- utes to global greenhouse gas emissions. One po- tential solution is upgrading available waste heat using heat pumps to meet industry demand at appropriate temperature levels. Currently avail- able industrial-scale high-temperature heat pump technologies, such as vapor compression and open-cycle mechanical vapor recompression, op- erate within a temperature range of 100 to 300 °C,
leaving a significant portion of process heating out- side their operating range. A promising solution for high-temperature demand is the gas-cycle heat pump based on the reversed Brayton cycle. How- ever, the choice of working fluid for such a cycle re- mains an open question and depends on process requirements as well as various environmental and thermophysical properties. Therefore, this re- search focuses on the criteria for selecting working fluids for high-temperature reversed Brayton cycle heat pumps in industrial applications.
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1st Thematic Section - FRAN BOŠNJAKOVIĆ DAY
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