Thermal modelling of three stage vapour compression cascade refrigeration system using entropy generation principle for reducing global warming and ozone depletion using ecofriendly refrigerants for semen preservation

Thermodynamic analysis of three stages cascade vapor compression refrigeration systems using ecofriendly refrigerants used for low-temperature applications. The effect of thermal performance parameters (i.e. approaches, condenser temperature, and temperature variations in the evaporators) on the first law thermal performances COPSystem and also in terms of second law efficiency of the cascade system (exergetic efficiency) and System exergy destruction ratio (SEDR) has been optimized thermodynamically using the entropy generation principle. The utility of R1234ze and R1234yf and in the high-temperature circuits and new eco-friendly refrigerants in the intermediates circuits and R134a or R404a in the low-temperature cascade circuit have been optimized. It was observed that in the low temperature (between- 50C to -100C) applications. It was observed that the best combination in terms of R1234ze-R134aR404a gives better thermal performance than using R1234yf-R134a-R404a. Similarly other combination in terms of R1234ze-R134a-R404a gives better thermal performance than using R1234ze-R1234yf-R404a.

This article is published in peer review journal and open access journalInternational journal of research in engineering and innovation (IJREI), which have a high impact factor journal for more details regarding this article, please go through our journal website.

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