Energy and Exergy Analysis of Vapor Compression Refrigeration System with Low-GWP Refrigerants

Tauseef Aized, Muhammad Rashid, Fahid Riaz, Ameer Hamza, Hafiz Zahid Nabi, Muhammad Sultan, Waqar Muhammad Ashraf () and Jaroslaw Krzywanski ()
Additional contact information
Tauseef Aized: Department of Mechanical Engineering, University of Engineering and Technology Lahore, Lahore 54000, Pakistan
Muhammad Rashid: Department of Mechanical Engineering, University of Engineering and Technology Lahore, Lahore 54000, Pakistan
Fahid Riaz: Mechanical Engineering Department, Abu Dhabi University, Abu Dhabi P.O. Box 59911, United Arab Emirates
Ameer Hamza: Department of Mechanical Engineering, University of Engineering and Technology Lahore, Lahore 54000, Pakistan
Hafiz Zahid Nabi: Department of Mechanical Engineering, University of Engineering and Technology Lahore, Lahore 54000, Pakistan
Muhammad Sultan: Department of Agricultural Engineering, Bahauddin Zakariya University, Multan 60800, Pakistan
Waqar Muhammad Ashraf: Centre for Process Systems Engineering, Department of Chemical Engineering, University College London, Torrington Place, London WC1E 7JE, UK
Jaroslaw Krzywanski: Faculty of Science and Technology, Jan Dlugosz University in Czestochowa, 13/15 Armii Krajowej Av., 42-200 Czestochowa, Poland

Energies, 2022, vol. 15, issue 19, 1-22

Abstract: In this paper, a first- and second-law analysis of vapor compression refrigeration is presented to estimate and propose the replacement of R134 with working fluids having less global warming potential (GWP) and less exergy destruction and irreversibilities. Six different refrigerants were studied, namely, R717, R1234yf, R290, R134a, R600a, and R152a. A thermodynamic model was designed on Engineering Equation Solver (EES) software, and performance parameters were calculated. The model was deployed on all six refrigerants, while the used output parameters of performance were cooling capacity, coefficient of performance, discharge temperature, total exergy destruction, relative exergy destruction rates of different components, second-law efficiency, and efficiency defect of each component. The performance parameters were estimated at different speeds of the compressor (1000, 2000, and 3000 rpm) and fixed condenser and evaporator temperatures of 50 °C and 5 °C, respectively. The isentropic efficiency of the compressor was the same as the volumetric efficiency, and it was taken as 75%, 65%, and 55% at the compressor speeds of 1000 rpm, 2000 rpm, and 3000 rpm, respectively. A comparison of the performance parameters was presented by importing the results in MATLAB. It was found that the compressor had the highest exergy destruction compared to the other components. It was found that R152 was the refrigerant with zero ozone depletion potential (ODP) and a GWP value of 140 with less exergy destruction and irreversibilities. Moreover, it was easy to use R152a with good thermodynamic characteristics. It is estimated that R152a is a suitable replacement for R134a, as it can be used with few modifications.

Keywords: exergy analysis; vapor compression cycle; exergy destruction; energy efficiency; low GWP refrigerants (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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