Keywords
GWP
ODP
Performance
R-134a
R-32
How to Cite
Abstract
Given the escalating global temperatures, air conditioning systems have become indispensable, particularly within the food industry where a cold storage system is imperative for preserving food freshness and extending its shelf life. As a result, the development of an efficient cold storage system is of utmost importance. The properties of a refrigerant significantly influence the performance of the refrigeration system, as well as its environmental impact measured by the Ozone Depletion Potential (ODP) and Global Warming Potential (GWP). This research paper aims to assess the energy efficiency of refrigeration systems that employ R-32 and R-134a in a fish cold storage facility. The findings from mathematical calculations indicate that R-32 necessitates greater energy input to achieve the desired temperature reduction, resulting in a lower Coefficient of Performance (COP) compared to R-134a. Nevertheless, R-32 exhibits a higher capacity for carrying energy per unit mass due to its elevated enthalpy. The critical temperature of R-32, 78.1°C, falls below the work cycle temperature post-compression, rendering it unsuitable for cold storage applications as it cannot revert to its original form and may cause compressor damage.
[1] V. Pérez-García, D. Méndez-Méndez, J.M. Belman-Flores, J. L. Rodríguez-Muñoz, J.J. Montes-Rodríguez, and J. J. Ramírez-Minguela, “Experimental study of influence of internal heat exchanger in a chest freezer using r-513a as replacement of r-134a.” Applied Thermal Engineering, 204 (2022) 117969. https://doi.org/10.1016/j.applthermaleng.2021.117969
[2] M. C. Constantino and F. T. Kanizawa, “Evaluation of pressure drop effect on COP of single-stage vapor compression refrigeration cycles.” Thermal Science and Engineering Progress, 28 (2022) 101048. https://doi.org/10.1016/j.tsep.2021.101048
[3] T. Kang, Y. You, and S. Jun, “Supercooling preservation technology in food and biological samples: a review focused on electric and magnetic field applications.” Food Sci Biotechnol 29, 303–321 (2020). https://doi.org/10.1007
[4] M. Kaur and M. Kumar, “An innovation in magnetic field assisted freezing of perishable fruits and vegetables: A review.” Food Reviews International, 36(8) (2020), 761–780. https://doi.org/10.1080/87559129.2019.1683746 /s10068-020-00750-6
[5] Y. H. Kim, J. Seo, R. Kemp, and A. Stuart, “Effect of Postmortem Aging and Fast-Freezing on Meat Quality of Various Lamb Cuts Under Prolonged Frozen Storage and Repeated Freezing/Thawing Conditions”, Meat and Muscle Biology 8(1) (2024): 17604, 1-10. doi: https://doi.org/10.22175/mmb.17604
[6] Y. Grover and P. S. Negi, “Recent developments in freezing of fruits and vegetables: Striving for controlled ice nucleation and crystallization with enhanced freezing rates.” Journal of Food Science, 88, (2023), 4799–4826. https://doi.org/10.1111/1750-3841.16810
[7] K. Goyal, R.V. Nanditta, P.D. Teja, S. Malarmannan, and G. Manikandaraja, “Analysis of vapor compression refrigeration system employing tetrafluroethane and difluroethane as refrigerants.” Journal of Physics: Conference Series, 2021, 2054(1). https://doi.org/10.1088/1742-6596/2054/1/012054
[8] M. Kılıç, “Evaluation of Combined Thermal–Mechanical Compression Systems: A Review for Energy Efficient Sustainable Cooling.” Sustainability, 14(21), (2022), 13724. https://doi.org/10.3390/su142113724
[9] International Energy Agency, The Future of Cooling Opportunities for energy-efficient air conditioning Together Secure Sustainable, 2018, www.iea.org/tandc/
[10] W. Chen, M. Alharthi, J. Zhang, and I. Khan, “The need for energy efficiency and economic prosperity in a sustainable environment,” Gondwana Research 127 (2024) 22–35. https://doi.org/10.1016/j.gr.2023.03.025
[11] D. Astrain, A. Merino, L. Catalán, P. Aranguren, M. Araiz, D. Sánchez, R. Cabello, and R. Llopis, “Improvements in the cooling capacity and the COP of a transcritical CO2 refrigeration plant operating with a thermoelectric subcooling system.” Applied Thermal Engineering, 155 (2019) 110–122. https://doi.org/10.1016/j.applthermaleng.2019.03.123
[12] B. Megaprastio, A. M. Zaka, R. S. Zahra, N. Aisyah, and H. M. Ariyadi, „Design of the Organic Rankine Cycle (ORC) System Using R600 and R600a as Working Fluid”, E3S Web of Conferences, 448, 04004 (2023). https://doi.org/10.1051/e3sconf/202344804004
[13] H. M. Ariyadi, S. Yamaguchi, and K. Saito, “Assessment of thermal and transport properties of ionic liquids as suitable absorbent for absorption cooling applications,” IOP Conference Series: Materials Science and Engineering, 2019, 539 (1), 012005 doi: 10.1088/1757-899X/539/1/012005.
[14] H. M. Ariyadi, N. Giannetti, S. Yamaguchi, and K. Saito, “Comparative analysis of ionic liquids as sorptive media for absorption cooling systems,” Refrigeration Science and Technology, 2019, 2019-August, pp. 1335–1342, 1033 doi: 10.18462/iir.icr.2019.1033.
[15] H. M. Ariyadi and A. Coronas, “Absorption Capacity of Ammonia into Ionic Liquids for Absorption Refrigeration Applications,” J Phys Conf Ser, 745, (2016) 032105.
[16] S. Lakshmanan, V. K. Maurya, A. Kumar, M. Bhati, “Mitigation potential of banned hydrofluorocarbons (HFCs) towards global warming – An assessment of Kigali Amendment in the Indian scenario,” Journal of Cleaner Production, Volume 428, (2023),139315, https://doi.org/10.1016/j.jclepro.2023.139315.
[17] L.M. Western, M.K. Vollmer, P.B. Krummel, K.E. Adcock, M. Crotwell, P.J. Fraser, C.M. Harth, R.L. Langenfelds, S.A. Montzka, J. Mühle, S. O’Doherty, D.E. Oram, S. Reimann, M. Rigby, I. Vimont, R.F. Weiss, D. Young, and J.C. Laube, J. C., “Global increase of ozone-depleting chlorofluorocarbons from 2010 to 2020.” Nature Geoscience, 16(4), (2023), 309–313. https://doi.org/10.1038/s41561-023-01147-w
[18] M. K. Kim, H. Lee, J. H. Jeong, “Evaluation of correlations for mass flow rate of refrigerant through electronic expansion valve in air—water heat pump system using R32”, International Journal of Refrigeration, Volume 151, (2023), 267-277, https://doi.org/10.1016/j.ijrefrig.2023.03.020.
[19] J.J. García Pabón, “Phase-out of high GWP refrigerants in refrigeration systems: Status of process in Colombia.” Respuestas, 24(2), 2019, 65–74. https://doi.org/10.22463/0122820x.1832
[20] L. Fedele, G. Lombardo, I. Greselin, D. Menegazzo, and S. Bobbo, “Thermophysical Properties of Low GWP Refrigerants: An Update.” International Journal of Thermophysics, 44, 80 (2023). https://doi.org/10.1007/s10765-023-03191-5
[21] P. Wang, M. Li, Q. Wang, B. Dai, Y. Ma, and H. Tian, “Heat transfer and pressure drop of CO2/R-32 mixture in mini-channel.” International Journal of Heat and Mass Transfer, 200 (2023) 123406. https://doi.org/10.1016/j.ijheatmasstransfer.2022.123406
[22] P. Mishra, S. Soni, G. Maheshwari, “Exergetic performance analysis of low GWP refrigerants as an alternative to R410A in split air conditioner”, Materials Today: Proceedings, Volume 63, (2022), 406-412, https://doi.org/10.1016/j.matpr.2022.03.343.
[23] Gaurav and R. Kumar, “Sustainabilityof Alternative Material of R-134a in Mobile Air-conditioning System: A Review.” Materials Today: Proceedings, 4 (2017) 112–118. https://doi.org/10.1016/j.matpr.2017.01.003
[24] Y. Shin, T. Kim, A. Lee, and H. Cho, “Performance characteristics of automobile air conditioning using the R-134a/R1234yf mixture.” Entropy, 2020; 22(1):4. https://doi.org/10.3390/e22010004
[25] S.W. Hadi, Y.T. Wijaya, I.R. Elysabeth, N., Aisyah, R.D.D. Putra, H.M. Ariyadi, “Energy performance analysis of R32 and R-134a refrigerant for spring pool water heater.” Advanced Engineering Letters, Vol. 2, No.3, 88-95 (2023). https://doi.org/adeletters.2023.2.3.2
[26] L. M. F. A. Al Azhari, M. Yulianto, & E. Hartulistiyoso, “ORC Performance Study with R32 and R-134a Using Biomass as an Energy Source.” Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering), 14(1), (2025), 118–129. https://doi.org/10.23960/jtep-l.v14i1.118-129
[27] T. D. J. Prabha and V. Rambabu, “Experimental investigation on the performance of air conditioner using R32 Refrigerant.” IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE), Volume 12, Issue 4 Ver. V (Jul. - Aug. 2015), PP 139-144. DOI: 10.9790/1684-1245139144
[28] F. A. Rayhan, A. Marasabessy, W. Sulistyawati, D. Z. Putri, A. Fatihah, and D. Natasya, “Thermodynamic Performance Comparison of Refrigeration Systems using R-134a, R-744, and R-32 for Indonesian Fishing Boats”, J. Adv. Res. Fluid Mech. Therm. Sc., vol. 128, no. 1, pp. 19–31, Mar. 2025. https://doi.org/10.37934/arfmts.128.1.1931
[29] B.O. Bolaji, “Experimental study of R152a and R32 to replace R-134a in a domestic refrigerator.” Energy, Volume 35, Issue 9, 2010, Pages 3793-3798, https://doi.org/10.1016/j.energy.2010.05.031.
[30] I. M. Mohammed and R. Kumar, “Experimental Evaluation of Condensation of R32 and R-134a over a Plain Tube.” Heat Transfer Engineering, 46(3), (2025), 252–267. https://doi.org/10.1080/01457632.2024.2308356
[31] U. N. Shete, R. Kumar, and R. Chandra. “Pool boiling heat transfer enhancement of R-134a, R32, and R600a using reentrant cavity surfaces.” Experimental Heat Transfer, 36(4), (2023), 528–547. https://doi.org/10.1080/08916152.2022.2055226
[32] D.W Shao, E. Granryd, Experimental and theoretical study on flow condensation with non-azeotropic refrigerant mixtures of R32/R134a, International Journal of Refrigeration, Volume 21, Issue 3, 1998, Pages 230-246, https://doi.org/10.1016/S0140-7007(98)00015-2.
[33] R.A. Mahmood, O.M. Ali, A. Al-Janabi, G. Al-Doori, and M.M. Noor, “Review of Mechanical Vapour Compression Refrigeration System Part 2: Performance Challenge.” International Journal of Applied Mechanics and Engineering, 2021;26(3):119–130. https://doi.org/10.2478/ijame-2021-0039
[34] Y.N. Nandanwar, P.V. Walke, V.P. Kalbande, and M. Mohan, “Performance improvement of vapour compression refrigeration system using phase change material and thermoelectric generator.” International Journal of Thermofluids, 18 (2023)100352. https://doi.org/10.1016/j.ijft.2023.100352
[35] N. Aisyah, H. M., Ariyadi, „Performance Evaluation of R1224yd as Alternative to R123 and R245fa for Vapor Compression Heat Pump System”, Vol. 27 (No.1), (2024), pp. 013-021, doi: 10.5541/ijot.1310329
[36] F. Alsouda, N.S. Bennett, S.C., Saha, F., Salehi, and M.S. Islam, “Vapor Compression Cycle: A State-of-the-Art Review on Cycle Improvements, Water and Other Natural Refrigerants.” Clean Technologies, 5(2), (2023), 584–608. https://doi.org/10.3390/cleantechnol5020030
[37] T. Zhang, H. Yang, “High efficiency plants and building integrated renewable energy systems: building-integrated photovoltaics (BIPV).” In: Desideri U, Asdrubali F (eds.), Handbook of Energy Efficiency in Buildings: A Life Cycle Approach. Butterworth-Heinemann, 2019,441–595.
[38] Y. Huo, D. Yang, J. Xie, Z. Yang, “Simulation Analysis and Experimental Verification of Freezing Time of Tuna under Freezing Conditions.” Fishes 2023, 8, 470. https://doi.org/10.3390/fishes8090470
[39] J. Zhang, B.E. Farkas, S.A Hale, “Thermal Properties of Skipjack Tuna (Katsuwonus Pelamis)”. International Journal of Food Properties, 4(1), (2001), 81–90. https://doi.org/10.1081/JFP-100000345
[40] Y. Feng, Y. Li, S. Qu, C. Wang, Y. Han, Z. Xing, “Energy savings of multi-chiller systems comprising hybrid-type compressors combined with thermal energy storage technology: Focusing on compressor isentropic efficiency, Energy 325 (2025) 136139. https://doi.org/10.1016/j.energy.2025.136139
[41] H. Shi and J. Wu, “The Performance Analysis of R32 Rotary Compressor Used for Room Air Conditioners.” IOP Conf. Ser.: Mater. Sci. Eng. 604 (2019) 012082
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