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Energy and exergy analysis of LPG (liquefied petroleum gas) as a drop in replacement for R134a in domestic refrigerators

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  • El-Morsi, Mohamed

Abstract

This study presents a comparison of energetic and exergetic performance of a vapour compression refrigeration system using pure HC (hydrocarbon) refrigerants. In this study, three different pure HCs propane (R290), butane (R600) and commercial LPG (liquefied petroleum gas) are used in the theoretical analysis. R134a is also used in the analysis as a reference refrigerant. The evaporator temperature ranges from −30 to 0 °C while the condenser ranges from 30 to 50 °C. MATLAB software is used for solving the thermodynamic equations, while the thermo-physical properties are calculated using REFPROP software. The results show that R600 has the highest COPc and exergetic efficiency, while LPG has the lowest. When compared to R134a, the COPc for R134a is higher than that for LPG by 10%. Also, the exergetic efficiency is higher by 5%. However, LPG has the advantage of being not expensive, available in large amounts and zero ozone depletion potential and low global warming potential.

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  • El-Morsi, Mohamed, 2015. "Energy and exergy analysis of LPG (liquefied petroleum gas) as a drop in replacement for R134a in domestic refrigerators," Energy, Elsevier, vol. 86(C), pages 344-353.
    • Handle: RePEc:eee:energy:v:86:y:2015:i:c:p:344-353
    DOI: 10.1016/j.energy.2015.04.035
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    References listed on IDEAS

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    Cited by:

    1. Bartosz Gil & Beata Fijałkowska, 2019. "Experimental Study of Nucleate Boiling of Flammable, Environmentally Friendly Refrigerants," Energies, MDPI, vol. 13(1), pages 1-13, December.
    2. Zhi Su & Ruijie Cao, 2023. "Impact of Digital Inclusive Finance on Urban Carbon Emission Intensity: From the Perspective of Green and Low-Carbon Travel and Clean Energy," Sustainability, MDPI, vol. 15(16), pages 1-16, August.
    3. Elakhdar, M. & Tashtoush, B.M. & Nehdi, E. & Kairouani, L., 2018. "Thermodynamic analysis of a novel Ejector Enhanced Vapor Compression Refrigeration (EEVCR) cycle," Energy, Elsevier, vol. 163(C), pages 1217-1230.
    4. Asgari, Sahar & Noorpoor, A.R. & Boyaghchi, Fateme Ahmadi, 2017. "Parametric assessment and multi-objective optimization of an internal auto-cascade refrigeration cycle based on advanced exergy and exergoeconomic concepts," Energy, Elsevier, vol. 125(C), pages 576-590.
    5. Sun, Zhili & Wang, Qifan & Xie, Zhiyuan & Liu, Shengchun & Su, Dandan & Cui, Qi, 2019. "Energy and exergy analysis of low GWP refrigerants in cascade refrigeration system," Energy, Elsevier, vol. 170(C), pages 1170-1180.
    6. Belman-Flores, J.M. & Rangel-Hernández, V.H. & Usón, S. & Rubio-Maya, C., 2017. "Energy and exergy analysis of R1234yf as drop-in replacement for R134a in a domestic refrigeration system," Energy, Elsevier, vol. 132(C), pages 116-125.

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    Keywords

    Refrigeration; LPG; R134a; Exergy; Drop-in replacement;
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