Abstract
Energy consumption and environmental problems have been the major consideration for comfort systems manufacturers. This research work investigated a varied mass charge of R600a, an eco-friendly refrigerant with a low concentration of 0.4 and 0.6 g/L of CNT nanolubricant concentration in a domestic vapor compression refrigerating system working with pure mineral oil as the base lubricant. The experimental test performance of the system was studied considering pull-down time, COP, power consumption, and cooling capacity. The result showed that CNT nanolubricant had lower evaporator air temperature with higher COP and cooling capacity with a reduction in power consumption compared to R600a in the base lubricant in the system.
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Abbreviations
- COP:
-
Coefficient of performance
- EG:
-
Ethylene glycol
- h :
-
Enthalpy (kJ/kg)
- m :
-
Mass flow rate (kg/s)
- MWCNT:
-
Multiwall carbon nanotube
- PAG:
-
Polyalkylene glycol
- Q evap :
-
Cooling capacity (W)
- SG:
-
Solid grinding
- SWCNT:
-
Single wall carbon nanotube
- T :
-
Temperature (°C)
- TEM:
-
Transmission electron microscope
- VCRS:
-
Vapor compression refrigeration system
- W C :
-
Compressor power in put (W)
- 1:
-
Compressor inlet
- 2:
-
Compressor outlet
- 3:
-
Condenser outlet
- 4:
-
Evaporator outlet
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Babarinde, T.O., Akinlabi, S.A., Madyira, D.M. (2021). Experimental Study of Performance of R600a/CNT-Lubricant in Domestic Refrigerator System. In: Akinlabi, E., Ramkumar, P., Selvaraj, M. (eds) Trends in Mechanical and Biomedical Design. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-15-4488-0_62
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DOI: https://doi.org/10.1007/978-981-15-4488-0_62
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