Optimizing Domestic Refrigerator Performance with Varied Lubricants for R134a Refrigerant: Comparative Analysis
Optimización del rendimiento del refrigerador doméstico con lubricantes variados para el refrigerante R134a : un análisis comparativo
Otimização do desempenho de refrigeradores domésticos com diferentes lubrificantes para o refrigerante R134a: análise comparativa
| 2025 | |
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Lubricantes Aceite de polioléster Aceite mineral R-134a EES Refrigerador doméstico Lubricants Polyol ester oil Mineral oil R-134a EES Domestic refrigerator Lubrificantes Óleo éster de poliol Óleo mineral R-134a EES Refrigerador doméstico |
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| Inglés | |
| Universidad de Montevideo | |
| REDUM | |
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https://revistas.um.edu.uy/index.php/ingenieria/article/view/1734
https://hdl.handle.net/20.500.12806/3434 |
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| Acceso abierto | |
| Atribución 4.0 Internacional |
| Sumario: | The efficiency and performance of domestic refrigerators don’t only depend on refrigerant but also on lubricating oil used in the refrigerator compressor. The lubricant of the compressor is responsible for the absorption of heat energy evolved during the compressor work. The primary objective of this study is to examine and compare the effects of two distinct lubricating oils utilized with the refrigerant R134a on various performance metrics of the domestic refrigerator compressor, including evaporator capacity, compressor power consumption, and the coefficient of performance (COP) of the refrigerator. These performance parameters were compared for two different cases, viz., domestic refrigerator having R134a as a refrigerant with Mineral oil (MO) and Polyol ester oil (POE), and for two different methods such as manually by using R134a ph chart and EES software. The tests were conducted on a 329-liter refrigerating capacity double-door refrigerator. The effect of changing oil from MO to POE resulted in the increment of evaporator capacity from 1.81 kW to 1.99 kW and COP from 4.9 to 5.7 while the compressor power consumption reduced from 370 watts to 340 watts which concluded that POE oil is the better lubricant in the domestic compressor as compared to MO. |
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