Thermodynamic Analysis of Vapor Compression Refrigeration System Using Domestic Liquefied Petroleum Gas as Refrigerant

Abstract

A thermodynamic study was performed on a vapor compression refrigeration system (VCRS) with domestic liquefied petroleum gas (LPG) as a refrigerant. LPG's coefficient of performance, power consumption, and refrigeration capacity are compared with R134a. There were three condensing temperature settings: 35, 40, and 45 °C, and the evaporation temperatures ranged from −18 °C to +14 °C. It has been observed that the VCRS with domestic LPG consumes less power than that of R134a and it's evident that domestic LPG is compatible with mineral oil. The findings indicate that R134a's performance is fairly comparable. It has been found that the mass flowrate, compressor discharge temperature, and compressor discharge pressure are lower than that of R134a. The experimental investigation reveals that domestic LPG can be a suitable refrigerant in vapor compression refrigeration systems for both refrigeration and cooling applications.