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Performance analysis of automotive air conditioning system with an internal heat exchanger using R1234yf under different evaporation and condensation temperatures

This study presents the energy and exergy analysis of an R1234yf AAC (automotive air conditioning) system. For this aim, an experimental baseline AAC system was developed and a double pipe IHX (internal heat exchanger) was employed to the system. The detailed performance comparison of the system under different condensation and evaporation temperatures was studied for both the baseline system and the system with the IHX. For this, the cooling capacity, COP (coefficient of performance) and the total exergy destruction per cooling capacity were evaluated. Additionally, the volumetric and isentropic efficiencies of the compressor were investigated. It was determined that the IHX has increased COP and decreased exergy destruction per cooling capacity by 4%-6% and 13%-16%, respectively.
PAPER REVISED: 2017-10-25
PAPER ACCEPTED: 2017-10-28
  1. Regulation (Eu) No 517/2014 of The European Parliament And of the Council of 16 April 2014 on "Fluorinated Greenhouse Gases and Repealing Regulation EC No:842/2006"
  2. Papadimitriou, V. C., et al., CF3CF=CH2 and (Z)-CF3CF=CHF: Temperature Dependent OH Rate Coefficients and Global Warming Potentials, The Journal of Physical Chemistry, 10 (2008), 6, pp.808-820, DOI No. 10.1039/B714382F
  3. Zilio, C., et al., The Refrigerant R1234yf in Air Conditioning Systems, Energy, 36 (2011), 10, pp. 6110-6120, DOI No. 10.1016/
  4. Wang, C. C., System Performance of R-1234yf refrigerant in Air-conditioning and Heat Pump System - An Overview of Current Status, Applied Thermal Engineering, 73 (2014), pp. 1412-1420, DOI No. 10.1016/j.applthermaleng.2014.08.012
  5. Direk, M., et al., Comparative Performance Analysis of Experimental Frigorific Air Conditioning System Using R-134a and Hfo-1234yf as a Refrigerant, Thermal Science, 20 (2016), 6, pp. 2065-2072, DOI No. 10.2298/TSCI140715130D
  6. Lee, T., et al., Development of Performance Analysis Program and The Study of Substitution Refrigerant R1234yf for Vehicle Refrigerant Compressor, Korean Journal of Air-Conditioning Refrigeration Engineering, 23 (2011), 11, pp.699-704, DOI No. 10.6110/KJACR.2011.23.11.699
  7. Leck, T. J., Evaluation of R1234yf as a Potential Replacement for R-134a in Refrigeration Applications, Proceedings, 3rd IIR Conference on Thermo-physical Properties and Transfer Processes of Refrigerants, Boulder, USA, 2009, pp. 1-9.
  8. Petitjean, S., et al., R-1234yf Validation & A/C System Energy Efficiency Improvements, Proceedings, SAE Alternate Refrigerant Symposium, Scottsdale, USA, 2010
  9. Cho, H., et al., Exprimental Investigation of Performance and Exergy Analysis of Automotive Air Conditioning Systems Using Refrigerant R1234yf at Various Compressor Speeds, Applied Thermal Engineering, 101 (2016), pp. 30-37, DOI No. 10.1016/j.applthermaleng.2016.01.153
  10. Daviran, S., et al., A Comparative Study on The Performance of R1234yf and HFC-134a as an Alternative in Automotive Air Conditioning Systems, Applied Thermal Engineering, 110 (2017), pp. 1091-1100, DOI No. 10.1016/j.applthermaleng.2016.09.034
  11. Qi, Z., Performance Improvement Potentials of R1234yf Mobile Air Conditioning System, International Journal of Refrigeration, 58 (2015), pp. 35-40, DOI No. 10.1016/j.ijrefrig.2015.03.019
  12. Molés, F., et al., Theoretical Energy Performance Evaluation of Different Single Stage Vapour Compression Refrigeration Configurations Using R1234yf and R1234ze(E) as Working Fluids, International Journal of Refrigeration, 44 (2014), pp. 141-150, DOI No. 10.1016/j.ijrefrig.2014.04.025
  13. Mota-Babiloni, A., et al., Drop-in Energy Performance Evaluation of R1234yf and R1234ze (E) in A Vapor Compression System as R134a Replacements, Applied Thermal Engineering, 71 (2014) pp. 259-265
  14. Navarro-Esbrí, J., et al., Experimental Analysis of R1234yf as a Drop-in Replacement for R134a in a Vapor Compression System, International Journal of Refrigeration, 36 (2013), 3, pp. 870 -880, DOI No. 10.1016/j.ijrefrig.2012.12.014
  15. Taylor, J.R., An Introduction to Error Analysis Second ed., University Science Books, Sausalito, USA, 1997