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Experimental Evaluation of an Automotive Heat Pump System with R1234yf as an Alternative to R134a

  • Research Article - Mechanical Engineering
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Abstract

In this study, performance characteristics of an automotive heat pump (AHP) system using R1234yf and R134a were investigated. Compressor speeds, air temperature and air flow velocity significantly influence the system performance parameters. Therefore, the effect of compressor speeds, air flow velocities and temperatures on the system performance characteristics were evaluated under various test conditions. Optimum experimental conditions were arranged to determine the performances of the AHP system. As a result, the heating performance of R1234yf is lower than R134a. The heating performance of AHP systems gets higher as air flow velocities drop. While the air flow velocities raised up from 1.2 to 4.5 m s−1, the heat capacity was decreased by 15%. Change in air velocities plays more role on the performance characteristics than the change in ambient temperature at low air flow velocities. Comparing the suction and discharge pressures of both the R134a and R1234yf, R1234yf is higher because of its vapour densities. Finally, R1234yf can be used in AHP systems for both cooling and heating applications.

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Abbreviations

\( \dot{Q} \) :

Heat transfer (kW)

\( \dot{W} \) :

Work (kW)

\( \dot{m} \) :

Mass flow rate (kg s−1)

h :

Enthalpy (kJ kg−1)

air:

Air

e :

Exit

i :

Inlet

ind:

Indoor

outd:

Outdoor

comp:

Compressor

evap:

Evaporator

cond:

Condenser

ref:

Refrigerant

References

  1. Hosoz, M.; Direk, M.: Performance evaluation of an integrated automotive air conditioning and heat pump system. Energy Convers. Manag. 47(5), 545–559 (2006)

    Article  Google Scholar 

  2. Ahn, J.H.; Kang, H.; Lee, H.S.; Jung, H.W.; Baek, C.; Kim, Y.: Heating performance characteristics of a dual source heat pump using air and waste heat in electric vehicles. Appl. Energy 119, 1–9 (2014)

    Article  Google Scholar 

  3. Qin, F.; Xue, Q.; Velez, G.M.A.; Zhang, G.; Zou, H.; Tian, C.: Experimental investigation on heating performance of heat pump for electric vehicles at −20°C ambient temperature. Energy Convers. Manag. 102, 39–49 (2015)

    Article  Google Scholar 

  4. Hosoz, M.; Direk, M.; Yigit, K.S.; Canakcı, M.; Turkcan, A.; Alptekin, E.; Sanlı, A.: Performance evaluation of an R134a automotive heat pump system for various heat sources in comparison with baseline heating system. Appl. Therm. Eng. 78, 419–427 (2015)

    Article  Google Scholar 

  5. Wanga, Z.; Wei, M.; Guo, C.; Zhao, M.: Enhance the heating, performance of an electric vehicle AC/HP system under low temperature. Energy Procedia 105, 2384–2389 (2017)

    Article  Google Scholar 

  6. Liu, C.; Zhang, Y.; Gao, T.; Shi, J.; Chen, J.; Wang, T.; Pan, L.: Performance evaluation of propane heat pump system for electric vehicle in cold climate. Int. J. Refrig 95, 51–60 (2018)

    Article  Google Scholar 

  7. Wang, D.; Yu, B.; Hu, J.; Chen, L.; Shi, J.; Chen, J.P.: Heating performance characteristics of CO2 heat pump system for electrical vehicle in a cold climate. Int. J. Refrig 85, 27–41 (2018)

    Article  Google Scholar 

  8. Qin, F.; Xue, Q.; Zhang, G.; Zou, H.; Tian, C.: Experimental investigation on heat pump for electric vehicles with different refrigerant injection compressors. Energy Procedia 75, 1490–1495 (2015)

    Article  Google Scholar 

  9. Li, K.; Xu, D.; Lan, J.; Su, L.; Fang, Y.: An experimental and theoretical investigation of refrigerant charge on a secondary loop air-conditioning heat pump system in electric vehicles. Int. J. Energy Res. 43, 3381–3398 (2019)

    Article  Google Scholar 

  10. European Parliament and the Council, 2014. 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 text with EEA relevance. Off. J. Eur. Union L 150/195-230

  11. Lemmon, E.W.; Huber, M.L.; Mclinden, M.O.: NIST Standard Reference Database 23: Reference Fluid Thermodynamic and Transport Properties-REFPROP. 9.1. National Institute of Standards and Technology, Boulder, CO, USA (2013)

  12. Zilio, C.; Brown, J.S.; Schiochet, G.; Cavallini, A.: The Refrigerant R1234yf in Air Conditioning Systems. Energy 36(10), 6110–6120 (2011)

    Article  Google Scholar 

  13. Mota-Babiloni, A.; Navarro-Esbrí, J.; Barragan, A.; Moles, F.; Peris, B.: Drop-in energy performance evaluation of R1234yf and R1234ze(E) in a vapor compression system as R134a replacements. Appl. Therm. Eng. 71(1), 259–265 (2014)

    Article  Google Scholar 

  14. Navarro-Esbrí, J.; Moles, F.; Barragan-Cervera, A.: Experimental analysis of the internal heat exchanger influence on a vapour compression system performance working with R1234yf as a drop-in replacement for R134a. Appl. Therm. Eng. 59, 153–161 (2013)

    Article  Google Scholar 

  15. Navarro-Esbri, J.; Mendoza-Miranda, J.M.; Mota-Babiloni, A.; Barragan-Cervera, A.; Belman-Flores, J.M.: Experimental analysis of R1234yf as a drop-in replacement for R134a in a vapor compression system. Int. J. Refrig 36(1–2), 870–880 (2013)

    Article  Google Scholar 

  16. Direk, M.; Kelesoglu, A.; Akin, A.: Drop-in performance analysis and effect of IHX for an automotive air conditioning system with R1234yf as a replacement of R134a. Stroj Vestn-J. Mech. Eng. 63(5), 314–319 (2017)

    Article  Google Scholar 

  17. Daviran, S.; Kasaeian, A.; Golzari, S.; Mahian, O.; Nasirivatan, S.; Wongwises, S.: A comparative study on the performance of HFO-1234yf and HFC-134a as an alternative in automotive air conditioning systems. Appl. Therm. Eng. 110, 1091–1100 (2017)

    Article  Google Scholar 

  18. Meng, Z.; Zhang, H.; Lei, M.; Qin, Y.; Qiu, J.: Performance of low GWP R1234yf/R134a mixture as a replacement for R134a in automotive air conditioning systems. Int. J. Heat Mass Transf. 116, 362–370 (2018)

    Article  Google Scholar 

  19. Sieres, J.; Santos, J.M.: Experimental analysis of R1234yf as a drop-in replacement for R134a in a small power refrigerating system. Int. J. Refrig 91, 230–238 (2018)

    Article  Google Scholar 

  20. Direk, M.; Mert, M.S.; Yüksel, F.; Keleşoğlu, A.: Exergetic investigation of a R1234yf automotive air conditioning system with internal heat exchanger. Int. J. Thermodyn. 21(2), 103–109 (2018)

    Article  Google Scholar 

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Acknowledgements

This work was supported by the Scientific and Technological Research Council of Turkey (TUBITAK) (Project Number: 216M437).

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Authors and Affiliations

  1. Energy Systems Engineering Department, Yalova University, 77200, Yalova, Turkey

    Mehmet Direk & Fikret Yüksel

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  1. Mehmet Direk
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  2. Fikret Yüksel
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Correspondence to Mehmet Direk.

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Direk, M., Yüksel, F. Experimental Evaluation of an Automotive Heat Pump System with R1234yf as an Alternative to R134a. Arab J Sci Eng 45, 719–728 (2020). https://doi.org/10.1007/s13369-019-04140-x

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  • DOI: https://doi.org/10.1007/s13369-019-04140-x

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