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Change in energy performance as a result of a R422D retrofit: An experimental analysis for a vapor compression refrigeration plant for a walk-in cooler

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  • Aprea, Ciro
  • Maiorino, Angelo
  • Mastrullo, Rita

Abstract

In this paper, the energy performance of a walk-in cooler working with R22 and its substitute R422D are experimentally studied. The experimental investigation was carried out considering three different operating conditions; in particular, the AHRI standard has been used as reference for operating conditions. All tests were run at steady state conditions and keeping the external air temperature at 35°C. The experimental analysis allowed the determination of cooling capacity, the electrical power absorbed, the COP and other variables characterizing the working of the plant. The results demonstrated that the cooling capacity for R422D was lower than for R22, while the electrical power absorbed with R422D was higher than that with R22. As consequence, the COP of R422D was lower than that of R22. Furthermore, technical proposals are introduced with the aim of improving the overall performances of those plants, which could be retrofitted with R422D.

Suggested Citation

  • Aprea, Ciro & Maiorino, Angelo & Mastrullo, Rita, 2011. "Change in energy performance as a result of a R422D retrofit: An experimental analysis for a vapor compression refrigeration plant for a walk-in cooler," Applied Energy, Elsevier, vol. 88(12), pages 4742-4748.
    • Handle: RePEc:eee:appene:v:88:y:2011:i:12:p:4742-4748
    DOI: 10.1016/j.apenergy.2011.06.049
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    References listed on IDEAS

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    1. Aprea, Ciro & Maiorino, Angelo, 2011. "An experimental investigation of the global environmental impact of the R22 retrofit with R422D," Energy, Elsevier, vol. 36(2), pages 1161-1170.
    2. Aprea, Ciro & Maiorino, Angelo, 2009. "Heat rejection pressure optimization for a carbon dioxide split system: An experimental study," Applied Energy, Elsevier, vol. 86(11), pages 2373-2380, November.
    3. La Rocca, Vincenzo & Panno, Giuseppe, 2011. "Experimental performance evaluation of a vapour compression refrigerating plant when replacing R22 with alternative refrigerants," Applied Energy, Elsevier, vol. 88(8), pages 2809-2815, August.
    4. Tao, Y.B. & He, Y.L. & Tao, W.Q., 2010. "Exergetic analysis of transcritical CO2 residential air-conditioning system based on experimental data," Applied Energy, Elsevier, vol. 87(10), pages 3065-3072, October.
    5. Cecchinato, Luca & Chiarello, Manuel & Corradi, Marco, 2010. "Design and experimental analysis of a carbon dioxide transcritical chiller for commercial refrigeration," Applied Energy, Elsevier, vol. 87(6), pages 2095-2101, June.
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    Cited by:

    1. 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.
    2. Qureshi, Bilal Ahmed & Zubair, Syed M., 2012. "The impact of fouling on performance of a vapor compression refrigeration system with integrated mechanical sub-cooling system," Applied Energy, Elsevier, vol. 92(C), pages 750-762.
    3. Qureshi, Bilal A. & Inam, Muhammad & Antar, Mohamed A. & Zubair, Syed M., 2013. "Experimental energetic analysis of a vapor compression refrigeration system with dedicated mechanical sub-cooling," Applied Energy, Elsevier, vol. 102(C), pages 1035-1041.
    4. Gazda, Wiesław & Kozioł, Joachim, 2013. "The estimation of energy efficiency for hybrid refrigeration system," Applied Energy, Elsevier, vol. 101(C), pages 49-57.

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    JEL classification:

    • R22 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - Household Analysis - - - Other Demand

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