Nugroho, Agus and Rizalman, Mamat and Bo, Zhang and W. H., Azmi and Alenezi, Raslan and Najafi, Gholamhassan (2022) An overview of vapor compression refrigeration system performance enhancement mechanism by utilizing nanolubricants. Journal of Thermal Analysis and Calorimetry, 147. pp. 9139-9161. ISSN 1388-6150 (print); 1588-2926 (online). (Published)
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Abstract
Nanolubricants are dispersed nano-scales solid particles in a base fluid. Due to high demand for higher efficiency in thermal application systems, nanolubricants is an ideal option to meet the particular demand. As the result a numerous scientist have been investigating to replace the base fluid in the vapor compression refrigeration (VCR) system with nanolubricants. This paper elaborates the major factors that influence the VCR system performance mechanism through thermal conductivity enhancement, solubility and homogenous solution, stability, viscosity and tribological improvement of nanolubricants, respectively. The two common methods in preparing nanolubricants are one-step and two-step method which have been discussed in this paper. The current development of nanolubricants and hybrid nanolubricants have been elaborated. The findings show that the viscosity and thermal conductivity escalated with the improved of nanolubricants volume concentration. The studies revealed that introducing nanoparticles into lubricant has a major effect in improving viscosity, thermal conductivity and tribological improvement that led to the improvement of heat transfer enhancement mechanism.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Nanolubricants, Thermal conductivity, Vapor compression refrigeration (VCR) system, Performance enhancement |
| Subjects: | Q Science > QC Physics T Technology > TJ Mechanical engineering and machinery T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Faculty/Division: | Institute of Postgraduate Studies College of Engineering |
| Depositing User: | Noorul Farina Arifin |
| Date Deposited: | 18 Aug 2022 04:46 |
| Last Modified: | 18 Aug 2022 04:46 |
| URI: | http://umpir.ump.edu.my/id/eprint/34987 |
| Download Statistic: | View Download Statistics |
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