Comparative exergy analysis of the cascade cooling system for alternative refrigerant couples

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International Journal of Energy Applications and Technologies
Volume:7 Issue:4
Comparative exergy analysis of the cascade cooling system for alternative refrigerant couples

Comparative exergy analysis of the cascade cooling system for alternative refrigerant couples

Authors : Erkan DİKMEN, Arzu ŞENCAN ŞAHİN

Pages : 115-119

Doi:10.31593/ijeat.772180

View : 49 | Download : 11

Publication Date : 2020-12-31

Article Type : Research Paper

Abstract :In this work, a comparative exergy analysis of cascade cooling system working with alternative refrigerant couples has been carried out. In study; R454C and R-744 as low temperature cycle insert ignore into journalissuearticles values(LTC); refrigerant and R1234ze, R1234yf and R717 as high temperature cycle insert ignore into journalissuearticles values(HTC); refrigerant were used. The refrigerants used in the study have zero ODP and low GWP values. Exergy analysis was carried out to investigate the effect to exergy efficiency of operation parameters in cascade cooling system. The exergy efficiency values of the cascade cooling system decreases with increasing evaporator temperature for all refrigerant couples. The exergy efficiency values of the cascade cooling system decreases with increasing the condenser temperature. Obtained results show that in all cases, the refrigerant couple R454C/R717 has the highest exergy efficiency.
Keywords : cascade cooling system, Exergy, Refrigerant, Thermodynamic analysis

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