Volume 15, Issue 6

Experimental Comparative Analysis of the Performance and Energy Efficiency of Central Air Conditioning Systems Using R22 and R410A Refrigerants

Author

Eng Sayed Fadhel Abdullah, Eng Saleh Abdulsamad Ben Safar

Abstract

This study presents an experimental comparative analysis of the performance and energy efficiency of central air conditioning systems operating with R22 and R410A refrigerants. The investigation was conducted under identical operating conditions using two vapor compression systems of equal cooling capacity. Key performance parameters, including cooling capacity, compressor power consumption, coefficient of performance (COP), energy efficiency ratio (EER), operating pressures, and temperature profiles, were evaluated. The experimental results indicate significant thermodynamic differences between the two refrigerants. R410A operates at higher suction and discharge pressures compared to R22, which affects compressor work and system performance. Variations in energy consumption and efficiency indicators were observed, highlighting the influence of refrigerant properties on system behavior. Statistical analysis using the independent sample t-test confirmed that the differences between the two systems are statistically significant at α = 0.05. The findings contribute to improved understanding of refrigerant selection in central air conditioning systems and provide insights for energy-efficient and environmentally compliant HVAC design.

Keywords: R22, R410A, central air conditioning, vapor compression cycle, COP, EER, energy efficiency, thermodynamic performance.

DOI: https://doi.org/10.62226/ijarst20262712

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DOI

https://doi.org/10.62226/ijarst20262712

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