Onakade, M. A. and Adelekan, D.S and Ohunakin, O.S. and Atiba, Opemipo E. and Gill, Jatinder and Atayero, A. A. (2019) Experimental Performance of the Energetic Characteristics of a Domestic Refrigerator with Al2O3 Nanolubricant and LPG Refrigerant. In: International Conference on Engineering for Sustainable World, 2019.
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Abstract
This paper studies the experimental performance of the energetic characteristics of a slightly modified domestic refrigerator infused with nano-lubricant containing different concentrations of Al2O3 (at 0, 0.2, 0.4 and 0.6 g/L) with liquefied petroleum gas (LPG) charge of 40g. Parameters investigated were power consumption, cooling capacity, coefficient of performance (COP), discharge temperature, volumetric refrigerating capacity (VRC) and pressure ratio. The findings showed that when the nano-based lubricants were compared with pure oil, the power at 0.6g/L concentration, gave the best performance of 67.01W, at different time over 180 minutes’ periods. The discharge pressure of the system when compared to pure-oil at 0.6g/L concentrations exhibited acceptable value of 616. 33kPa. For the cabinet temperature, it was seen that the 0.6g/L had the lowest recorded temperature of -8.7ºC after 180 minutes. With the coefficient of performance, the 0.2g/L concentration had the highest average performance of 2.239 at 180 minutes. The highest average performance of 174.225 kW over 180 minutes was found as the refrigerating capacity at 02.g/L concentration. The nano-lubricant can be concluded to work safely in the refrigerator but better optimization in nano-application will still be needed for better results.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Uncontrolled Keywords: | Al2O3 nanoparticle, nano lubricant, liquefied petroleum gas (LPG) |
| Subjects: | T Technology > TJ Mechanical engineering and machinery |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Engineering Sciences |
| Depositing User: | Mrs Patricia Nwokealisi |
| Date Deposited: | 22 Apr 2021 15:12 |
| Last Modified: | 22 Apr 2021 15:12 |
| URI: | http://eprints.covenantuniversity.edu.ng/id/eprint/14012 |
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