Second law analysis of an automotive air conditioning system using HFO-1234yf, an environmentally friendly refrigerant [Analyse selon le second principe d'un syst่me de conditionnement d'air automobile fonctionnant au HFO-1234yf, frigorig่ne respectueux de l'environnement]
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Publication Details
Author list: Golzari S., Kasaeian A., Daviran S., Mahian O., Wongwises S., Sahin A.Z.
Publisher: Elsevier
Publication year: 2017
Journal: International Journal of Refrigeration (0140-7007)
Volume number: 73
Start page: 134
End page: 143
Number of pages: 10
ISSN: 0140-7007
eISSN: 1879-2081
Languages: English-Great Britain (EN-GB), French-France (FR-FR)
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Abstract
In this paper, a comparative study of the second law of thermodynamics is presented to determine the possibility of using HFO-1234yf, an environmentally friendly refrigerant, as a drop-in replacement of HFC-134a in automotive air conditioning system. For the thermodynamic analysis, a computer program is written to simulate the operating conditions of automobile air conditioning system. The thermodynamic properties of the refrigerants are extracted from the REFPROP 8.0 software. For calculating the coefficient of performance (COP), exergy destruction, exergy efficiency and entropy generation, computational models are used to evaluate the effects of different parameters on their changes. It is found that using HFO-1234yf as the air conditioning refrigerant leads to higher exergy efficiency compared to HFC-134a. Also, maximum entropy generation and exergy destruction occur in the compressor. The exergy destruction and entropy generation of the cycle components are less in the case of using HFO-1234yf refrigerant instead of HFC-134a. ฉ 2016 Elsevier Ltd and IIR
Keywords
HFC-134a refrigerant, HFO-1234yf refrigerant
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