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Drop-in analysis of an internal heat exchanger in a vapour compression system using R1234ze(E) and R450A as alternatives for R134a

Author

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  • Mota-Babiloni, Adrián
  • Navarro-Esbrí, Joaquín
  • Barragán-Cervera, Ángel
  • Molés, Francisco
  • Peris, Bernardo

Abstract

The IHX (internal heat exchanger) is introduced in some refrigeration systems in order to achieve higher energy performances. Results obtained vary greatly depending on the refrigerant used and working conditions. This paper describes a drop-in analysis of IHX effects on the performance of a vapour compression system using R1234ze(E) and R450A (R134a/R1234ze(E) commercial mixture) as R134a low-GWP replacements. The tests were carried out in a completely monitored vapour compression system varying the condensing and evaporating temperature, with and without a counter-current flow tube-in-tube IHX. Because the cooling capacity rises and the power consumption remains similar, the conclusion is that the IHX has a positive influence on the energy efficiency for all refrigerants tested. The COP (coefficient of performance) gain using R1234ze(E) is the highest observed (overcomes the R134a COP for the same conditions). The R1234ze(E) and R450A discharge temperature increments are lower than those of R134a so does not reach dangerous values and the IHX pressure drops are also below than that of R134a.

Suggested Citation

  • Mota-Babiloni, Adrián & Navarro-Esbrí, Joaquín & Barragán-Cervera, Ángel & Molés, Francisco & Peris, Bernardo, 2015. "Drop-in analysis of an internal heat exchanger in a vapour compression system using R1234ze(E) and R450A as alternatives for R134a," Energy, Elsevier, vol. 90(P2), pages 1636-1644.
    • Handle: RePEc:eee:energy:v:90:y:2015:i:p2:p:1636-1644
    DOI: 10.1016/j.energy.2015.06.133
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    References listed on IDEAS

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    1. Zilio, Claudio & Brown, J. Steven & Schiochet, Giovanni & Cavallini, Alberto, 2011. "The refrigerant R1234yf in air conditioning systems," Energy, Elsevier, vol. 36(10), pages 6110-6120.
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    1. Mendoza-Miranda, J.M. & Mota-Babiloni, A. & Ramírez-Minguela, J.J. & Muñoz-Carpio, V.D. & Carrera-Rodríguez, M. & Navarro-Esbrí, J. & Salazar-Hernández, C., 2016. "Comparative evaluation of R1234yf, R1234ze(E) and R450A as alternatives to R134a in a variable speed reciprocating compressor," Energy, Elsevier, vol. 114(C), pages 753-766.
    2. Mota-Babiloni, Adrián & Belman-Flores, J.M. & Makhnatch, Pavel & Navarro-Esbrí, Joaquín & Barroso-Maldonado, J.M., 2018. "Experimental exergy analysis of R513A to replace R134a in a small capacity refrigeration system," Energy, Elsevier, vol. 162(C), pages 99-110.
    3. Albà, C.G. & Alkhatib, I.I.I. & Llovell, F. & Vega, L.F., 2023. "Hunting sustainable refrigerants fulfilling technical, environmental, safety and economic requirements," Renewable and Sustainable Energy Reviews, Elsevier, vol. 188(C).
    4. Devecioğlu, Atilla G. & Oruç, Vedat, 2018. "Improvement on the energy performance of a refrigeration system adapting a plate-type heat exchanger and low-GWP refrigerants as alternatives to R134a," Energy, Elsevier, vol. 155(C), pages 105-116.
    5. Makhnatch, Pavel & Mota-Babiloni, Adrián & López-Belchí, Alejandro & Khodabandeh, Rahmatollah, 2019. "R450A and R513A as lower GWP mixtures for high ambient temperature countries: Experimental comparison with R134a," Energy, Elsevier, vol. 166(C), pages 223-235.
    6. She, Xiaohui & Cong, Lin & Nie, Binjian & Leng, Guanghui & Peng, Hao & Chen, Yi & Zhang, Xiaosong & Wen, Tao & Yang, Hongxing & Luo, Yimo, 2018. "Energy-efficient and -economic technologies for air conditioning with vapor compression refrigeration: A comprehensive review," Applied Energy, Elsevier, vol. 232(C), pages 157-186.
    7. Mota-Babiloni, Adrián & Mateu-Royo, Carlos & Navarro-Esbrí, Joaquín & Molés, Francisco & Amat-Albuixech, Marta & Barragán-Cervera, Ángel, 2018. "Optimisation of high-temperature heat pump cascades with internal heat exchangers using refrigerants with low global warming potential," Energy, Elsevier, vol. 165(PB), pages 1248-1258.
    8. Piotr Życzkowski & Marek Borowski & Rafał Łuczak & Zbigniew Kuczera & Bogusław Ptaszyński, 2020. "Functional Equations for Calculating the Properties of Low-GWP R1234ze(E) Refrigerant," Energies, MDPI, vol. 13(12), pages 1-18, June.
    9. Zhai, Rui & Yang, Zhao & Chen, Yubo & Feng, Biao & Lv, Zijian & Zhao, Wenzhong, 2019. "Theoretical and experimental studies on the combustion mechanism of Trans-1, 3, 3, 3-tetrafluoroprop-1-ene," Energy, Elsevier, vol. 189(C).
    10. Kasaeian, Alibakhsh & Hosseini, Seyed Mohsen & Sheikhpour, Mojgan & Mahian, Omid & Yan, Wei-Mon & Wongwises, Somchai, 2018. "Applications of eco-friendly refrigerants and nanorefrigerants: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 96(C), pages 91-99.

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