Този доклад е отличен като Best Paper. Отвори публикуваната версия от сборника Best Paper.
FRI-20.21-1-TMS-07
STUDY OF THE INFLUENCE OF REFRIGERANT MASS ON THE PERFORMANCE OF AUTOMOTIVE AIR CONDITIONING SYSTEMS
Abstract
The performance of automotive air conditioning (A/C) systems is strongly influenced by the amount of refrigerant circulating within the system. This study investigates the effect of varying refrigerant charge on the thermodynamic performance, cooling capacity, and energy efficiency of an automotive A/C system operating under controlled conditions. Experimental tests were conducted using different refrigerant masses, ranging from undercharged to overcharged states, while monitoring system parameters. The results demonstrate that there exists an optimal refrigerant charge that maximizes cooling efficiency and minimizes energy consumption. The findings highlight the importance of precise refrigerant charging during maintenance and system design, contributing to improved energy efficiency, reduced emissions, and enhanced passenger comfort in automotive applications.
Keywords
Automotive Air Conditioning, Refrigerant Charge, Coefficient of Performance (Cop), Compressor Load, Thermal Management
REFERENCES
- Hanriot, S., & Vieira, B. (2011). Analysis of Performance of the Refrigeration Cycle of an Automotive Air Conditioning System," SAE Technical Paper, 2011-36-0098.
- Macagnan, M., Copetti, J., Souza, R., Reichert, R., & Amaro, M. (2013). Analysis of the Influence of Refrigeration Charge and Compressor Duty Cycle in an Automotive Air Conditioning System. 22nd International Congress of Mechanical Engineering (COBEM 2013), 6151-6161.
- Meena, A., Kishore, K., Agarwal, R., & Parayil, P. (2023). Improving Performance of Automotive Air Conditioning System at Vehicle Level by Optimizing the Refrigerant Quantity with Optimum Oil Quantity. SAE Technical Paper 2023-28-0040.
- Pan, C., & Tang, Y. (2011). Effect of Refrigerant Charge and Inlet Air Temperature on One A/C System. Applied Mechanics and Materials, 71-78, 2142-2146.
- Sachelarie, D., Achitei, G., Munteanu, A., Sachelarie, A., Dontu, A., Tcaciuc G., & Popescu, A. (2025). Air Conditioning Systems in Vehicles: Approaches and Challenges. MDPI Sustainability, 17, 5257.
- Song, J., Eom, S., Lee, J., Chu, Y., Kim, J., Choi, S., Choi, M., Choi, G., & Park, Y. (2023). Experimental Study of an Air-Conditioning System in an Electric Vehicle with R1234yf. MDPI Energies, 16, 8017.