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This research was conducted to investigate the performance of vapor compression refrigeration systems with Musicool 134 refrigerant. The scope of this study was to compare the performance of double expansion valves installed parallel to the temperature expansion valve (TEV). The temperature and pressure of the refrigerant at the variable cooling load of 0.23, 0.33, and 0.39 Kg/s were observed during the system worked until steady conditions. The results of the study show that double expansion valves installed parallel produce better performance. The highest refrigeration effect produced was 257 kJ / kg and the COP was 5.84.

Characteristics of vapor compression refrigeration system with parallel expansion valves using refrigerant musicool 134