Calculation of exergy losses, exergy efficiency and cooling coefficient of refrigerant R22

Nguyễn Văn Hoàng *

Lecturer in Faculty of Electrics and Electronics, Nha Trang College of Technology, Nha Trang 650000, Khanh Hoa, Vietnam.
 
Research Article
International Journal of Science and Research Archive, 2024, 13(01), 2969–2978.
Article DOI: 10.30574/ijsra.2024.13.1.1976
Publication history: 
Received on 05 September 2024; revised on 17 October 2024; accepted on 19 October 2024
 
Abstract: 
This study presents a detailed analysis of the exergy losses, exergy efficiency, and cooling coefficient of performance (COP) for the refrigerant R22 in refrigeration systems. Exergy analysis, which considers both the quantity and quality of energy, is used to identify and quantify the irreversibilities within the system. The objective of this analysis is to provide insights into the areas of inefficiency and potential improvements for enhanced energy performance. Results indicate that the exergy losses in R22 systems are primarily associated with the compressor and expansion valve, highlighting these components as key targets for efficiency improvements. The exergy efficiency was found to vary significantly with operating conditions, suggesting that system performance could be optimized through appropriate design and control strategies. Additionally, the cooling COP of R22 was evaluated, demonstrating its effectiveness in converting input energy into cooling capacity under various conditions. This analysis contributes to the broader understanding of R22's thermodynamic performance and offers a foundation for developing more sustainable and efficient refrigeration technologies.
 
Keywords: 
Cooling coefficient; Exergy losses; Efficiency; R22; Refrigerant
 
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