Taguchi, and Analytic Hierarchy Process Analysis for the Vapor Compression Refrigeration Cycle

This study selected the best refrigerants by considering thermophysical characteristics, cost, safety, and environmental and ecoeconomic factors. We examined the effectiveness of a vapor compression refrigeration cycle using statistical and thermodynamic methods. We computed efficiency and coefficient of performance (COP) for a range of experimental configurations. We determined the ideal settings for A2B1C2D2E1 and A2B2C1D1E3 to yield the highest COP and efficiency. The results showed that D > A > C > B > E and E > A > B > D > C significantly influenced the efficiency and COP. Evaporator and condenser temperatures, along with high- and low-pressure compressor efficiencies, most effectively determined the COP and efficiency under operational conditions; the COP is 2.54, and the efficiency is 30.46%.