Atilla G. Devecioğlu

Thermodynamic Analysis of a Refrigeration System Operating with R1234yf Refrigerant

After restriction of European Union on using high-GWP refrigerants, the investigations have been directed to utilize low-GWP refrigerants in available systems to determine the suitability of their operating conditions. In this study, energy and exergy parameters were investigated as a result of using R1234yf in a refrigeration system originally constructed to operate with R134a. The experimental work was conducted at two different ambient temperatures of 20 and 40 °C, while the evaporation temperature was 0 °C. The temperature, pressure, electrical power consumption, and mass flow measurements in the system revealed cooling capacity, COP, and exergetic efficiency for both R134a and R1234yf refrigerants.