Performance of air-conditioning system with different nanoparticle composition ratio of hybrid nanolubricant

Nurul Nadia, Mohd Zawawi and Wan Hamzah, Azmi and Mohd Fairusham, Ghazali and Hafiz, Muhammad Ali (2022) Performance of air-conditioning system with different nanoparticle composition ratio of hybrid nanolubricant. Micromachines, 13 (1871). pp. 1-18. ISSN 2072-666X. (Published)

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To reduce fuel consumption, the automotive air-conditioning (AAC) system’s coefficient of performance (COP) needs to be improved. The use of a diverse selection of hybrid nanolubricant composition ratios is expected to improve the properties of single nanolubricants, resulting in improved AAC system performance. The goal of this study was to find the best combination of hybrid nanolubricants for the best performance of the AAC system. Al2O3-SiO2/PAG hybrid nanolubricants at 0.06% volume concentrations with various composition ratios (20:80, 40:60, 50:50, 60:40, and 80:20) were investigated. An initial refrigerant charge of up to 155 g and a compressor speed of up to 2100 rpm were used in the experiment. The cooling capacity, compressor work, and COP of the AAC system were measured to determine its efficiency. The COP enhancement and compressor work reduction were recorded up to 16.31% and 18.65% for the 60:40 composition ratio, respectively. The maximum cooling capacity up to 75.84% was recorded for the 80:20 ratio, followed by 60:40. The maximum COP value of 8.81 for 155 g of hybrid nanolubricants was obtained at 900 rpm with a 60:40 composition ratio. Therefore, for optimal performance in the AAC system, a 60:40 composition ratio of the Al2O3-SiO2/PAG nanolubricant combination is strongly recommended.

Item Type: Article
Additional Information: Indexed by Scopus
Uncontrolled Keywords: Air-conditioning; Composition ratios; Hybrid nanolubricants; PAG; Refrigeration system
Subjects: T Technology > T Technology (General)
T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TJ Mechanical engineering and machinery
T Technology > TL Motor vehicles. Aeronautics. Astronautics
Faculty/Division: Institute of Postgraduate Studies
Faculty of Mechanical and Automotive Engineering Technology
Depositing User: Mr Muhamad Firdaus Janih@Jaini
Date Deposited: 13 Feb 2024 06:36
Last Modified: 13 Feb 2024 06:36
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