Data About Participant

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    doc. dr. sc. Gordan LJEŠIĆ

    University of Mostar, Faculty of Mechanical Engineering, Computing and Electrical Engineering, Mostar, Bosnia and Herzegovina

     

    • co-author:

     

    prof. dr. sc. Vladimir SOLDO

    University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, Croatia

    Klima-forum 2025 and INTER-KLIMA 2025 Conference:

    THE INFLUENCE OF INTERNAL HEAT EXCHANGER ON THE EFFICIENCY OF THE REFRIGERATION PROCESS WITH PROPANE AS A REFRIGERANT

    In this paper energy performance analysis of refrigeration process with propane (R290) as a natural refrigerant is presented. The paper determines the influence of internal heat exchanger on the system efficiency.

    Experimental rig is a compression refrigeration cycle consisting of scroll compressor, electronic expansion valve and helically coiled tube-in-tube condenser and evaporator. The cycle is equipped with auxiliary components, oil separator, receiver and internal heat exchanger that can be bypassed in order to determine individual impact on the system. Experimental rig is also equipped with advanced monitoring and acquisition system which enables determination of main system parameters, energy flow and system efficiency. 

    Energy efficiency ratio (EER) values are determined at different condensing temperatures 30 °C, 35 °C, 40 °C and 45 °C, and different cooling capacity values in the range of 6 to 11 kW. The measuring results show a negligible impact of the internal heat exchanger on the system efficiency.

    CV

    He received his PhD degree in 2022 from the Faculty of Mechanical Engineering, Computing and Electrical Engineering of the University of Mostar (FSRE). Today, he is an assistant professor at the FSRE.

    Ovogodišnje izlaganje:

    POREDBENA ISKUSTVA U REGULACIJI TEHNOLOGIJE POLUSAMOVOZEĆIH SUSTAVA U MOTORNIM VOZILIMA

    Valja izložiti poredbeni modeli regulacije korištenja naprednih sustava za ispomoć u vožnji motornih vozila te sustava za automatiziranu vožnju motornih vozila. Naglasak je pri tome na američkim i europskim iskustvima u vezi uvođenja i primjene tehnologije na trećoj i četvrtoj razini autonomije (SAE klasifikacija).

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