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Variations in the Thermal Performance of R22 and R410A Refrigeration Systems Depending on Operation Conditions  

Jeong, Ji-Hwan (Department of Environmental System, Baekseok College)
Kweon, Young-Chel (Department of Mechanical Engineering, Sunmoon University)
Chang, Keun-Sun (Department of Mechanical Engineering, Sunmoon University)
Publication Information
International Journal of Air-Conditioning and Refrigeration / v.12, no.1, 2004 , pp. 10-20 More about this Journal
Abstract
Experiments have been conducted in order to make comparisons of characteristics of a R410a cycle with a R22 cycle in terms of cooling capacity and coefficient of performance (COP). The parameters examined in the present work include air flow rate, indoor and outdoor air temperatures, and indoor relative humidity. These two refrigeration cycles constructed for this study share all components except compressor, accumulator, oil separator, and piping. The measurements were made using a psychrometric calorimeter. The experimental results show that the R410A cycle has several advantages for indoor units while the R22 cycle yields better performance for outdoor units.
Keywords
Alternative refrigerant; R22; R410A; Refrigeration cycle; Cooling capacity; COP;
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