Comparative energy and exergy analysis of cooling performance of reciprocating and scroll type compressors

The compressorwhich is the heart of the cooling system, rising energy demand and has had to be constantly renewed with a sense of economy. There are new studies all the time about the renewed compressors. In this study, scroll and semi-hermetic piston compressor, R-134a, R-404A or R-507A cooling capacity for cooling gases defined by reference to energy and energy analysis are reviewed.In this work, compressor power consumption for evaporation temperatures between work +10 -25 R-134a used refrigerant varies between 3 kW and 6.1 kW, R404-and R-507A used refrigerants from 5.2 kW to 10.6 kW it has varied. The mass flow rate is varied between 129 kg/h and 601 kg/h when using refrigerant R-134a and it is varied between 307 kg/h and 1045 kg/h when using refrigerants R-404A and R-507A. When using R-134a refrigerant, compressor outlet temperatures were observed to be used in a smaller quantity. The cooling performances (COP) and exergetic efficiencies for each of the variations of the fluid are examined for evaporation temperatures between +10°C to -25 °C.At the end of the study, energy efficiency, R-134a, R-404a or R-507a for entropy production and by an assessment of the performance effects of scroll and semi-hermetic reciprocating piston compressor reviewed.