Analysis based on EU Regulation No 517/2014 of new HFC/HFO mixtures as alternatives of high GWP refrigerants in refrigeration and HVAC systems |
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| Affiliation: | 1. ISTENER Research Group, Department of Mechanical Engineering and Construction, Campus de Riu Sec s/n, University Jaume I, E12071 Castellón, Spain;2. Institute for Industrial, Radiophysical and Environmental Safety, Camino de Vera s/n, Polytechnic University of Valencia, E46022 Valencia, Spain;1. ISTENER Research Group, Department of Mechanical Engineering and Construction, Campus de Riu Sec s/n, University Jaume I, E12071 Castellón Spain;2. Departamento de Ingeniería Química y Nuclear, Universidad Politécnica de Valencia, Camino de Vera 14, Valencia Spain;3. DuPont Fluorochemicals R&D, Chestnut Run Plaza, P.O.Box 2915, Wilmington, DE 19805, USA;1. Institute for Industrial, Radiophysical and Environmental Safety, Camino de Vera s/n, Polytechnic University of Valencia, E-46022 Valencia, Spain;2. ISTENER Research Group, Department of Mechanical Engineering and Construction, Campus de Riu Sec s/n, University Jaume I, E12071 Castellón, Spain;1. Department of Renewable Energies, Faculty of New Science & Technologies, University of Tehran, Tehran, Iran;2. Young Researchers and Elite Club, Mashhad Branch, Islamic Azad University, Mashhad, Iran;3. Faculty of Mechanical Engineering, Sharif University of Technology, Tehran, Iran;4. Fluid Mechanics, Thermal Engineering and Multiphase Flow Research Lab. (FUTURE), Department of Mechanical Engineering, Faculty of Engineering, King Mongkut’s University of Technology Thonburi, Bangmod, Bangkok, Thailand |
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| Abstract: | The EU Regulation No 517/2014 is going to phase-out most of the refrigerants commonly used in refrigeration and air conditioning systems (R134a, R404A and R410A) because of their extended use and their high GWP values. There are very different options to replace them; however, no refrigerant has yet imposed. In this paper we review and analyze the different mixtures proposed by the AHRI as alternative refrigerants to those employed currently. These mixtures are composed by HFC refrigerants: R32, R125, R152a and R134a; and HFO refrigerants: R1234yf and R1234ze(E). It is concluded, from the theoretical analysis, that most of the new HFO/HFC mixtures perform under the HFC analyzed (although some experimental studies show the contrary) and, in most cases, do not meet the GWP restrictions approved by the European normative. Furthermore, some of the mixtures proposed would have problems due to their flammability. |
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| Keywords: | Refrigeration Air conditioning GWP EU Regulation No 517/2014 HFO/HFC mixtures HFC replacement Froid Conditionnement d'air GWP Règlement de l'UE No 517/2014 Mélange HFO/HFC Remplacement des HFC |
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