Energy, Exergy, and Environmental (3E) Analysis of Hydrocarbons as Low GWP Alternatives to R134a in Vapor Compression Refrigeration Configurations

The phase-down of hydrofluorocarbons and substitution with low global warming potential values are consequences the awareness about environmental impacts greenhouse gases. This theoretical study evaluated energy exergy performances impact three vapor compression system configurations operating hydrocarbons R290, R600a, R1270 as alternatives to R134a. refrigeration cycle investigated in this include a single-stage cycle, equipped an internal heat exchanger, two-stage injection. According results, alternative hydrocarbon refrigerants could provide comparable performance analysis results also revealed that using exchanger or flash tank injection improve system’s efficiency while decreasing heating capacity. most efficient configuration was injection, by analysis. indicated utilization environmentally-friendly improving mitigate equivalent CO2 emissions significantly. reduced carbon footprint 50%, 1% 8% reduction be achieved