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Research Article

Performance study of aluminium oxide based nanorefrigerant in an air-conditioning system

Mohammed Dilawara, Adnan Qayoum

Department of Mechanical Engineering, National Institute of Technology Srinagar, J&K, India-190006




Power Saving;

Heat Transfer Enhancement;

Thermal conductivity;


The present issues related to global warming have attracted refrigerants with low Global Warming Potential (GWP). Two of the most promising low-GWP refrigerants, R32 (difluoromethane) and R290 (propane) are flammable. The addition of a flame retardant to R290 or R32 can enhance their flammable characteristics. Trifluoroiodomethane (R13I1) is a flame retardant with an enormously low global warming and can be used as a component of the refrigerant. In addition, dispersing nanoparticles in these refrigerants improves thermal conductivity. Nanorefrigerants are new refrigerants possessing better heat dissipation performance over traditional refrigerants. An ultra-low GWP mixture refrigerant consisting of R32, R161 and trifluoroiodomethane with aluminum oxide (Al2O3) nanoparticles is used in the present study. Simulation Model-based theoretical results of R410a and with R410a/Al2O3, mixture refrigerant (R32, R161 and trifluoroiodomethane) and nanorefrigerant (R32, R161 and trifluoroiodomethane with aluminum oxide nanoparticles) are carried. The study shows the coefficient of performance (COP) of R410a/Al2O3 and M (R32/R161/R13I1)/Al2O3 increased by 47.3% and 89.8% respectively. The power-saving up to 31.8% and 47.2% at a volume concentration of 0.09%. The comparison has been made with reference to the R410a/Al2O3 system. The thermophysical properties of refrigerants have been calculated using REFPROP (NIST properties of fluid reference). The theoretical model-based calculations are computed in MATLAB software. This study provides an insight in providing appropriate refrigerant substitutes for air conditioning systems.

© 2022 MIM Research Group. All rights reserved.


01/01/2024 Best Paper Award: The winners of 2023 Best Paper Award of Research on Engineering Structures and Materials (RESM) are announced. More information can be found at Author Awards section.

01/01/2024 Most Cited Paper Award: The winners of 2023 Most Cited Paper Award of Research on Engineering Structures and Materials (RESM) are announced. More information can be found at Author Awards section.

01/01/2024 Reviewer Awards: The winners of 2023 reviewer awards of Research on Engineering Structures and Materials (RESM) are announced. More information can be found at Reviewer Awards section.

8/12/2023 Special Issue: Embark on a journey of innovation with the journal of Research on Engineering Structures and Materials as we unveil a compelling opportunity for contributors in our upcoming special issue, "Design, Analysis, and Manufacturing of Composite Vehicle Structures." Led by distinguished Guest Editors Liubov Gavva and Oleg Mitrofanov from Moscow Aviation Institute. For more info see the link.

21/10/2023 Journal Submission System Upgrade Completed: We're delighted to announce that our Journal Submission and Tracking System has undergone a significant upgrade, aimed at enhancing user experience. 

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2023 Reviewer Awards:

Please, visit Reviewer Awards section for the winners of the 2022 RESM reviewer awards.

2023 Best Paper Award:

The paper authored by Ferzan Fidan, Naim Aslan, Mümin Mehmet Koç entitled as “Morpho-structural and compressive mechanical properties of graphene oxide reinforced hydroxyapatite scaffolds for bone tissue applications” is awarded.

2023 Most Cited Paper Award:

The paper authored by Ercan Işık, Ehsan Harirchian, Hüseyin Bilgin, Kirti Jadhav entitled as “The effect of material strength and discontinuity in RC structures according to different site-specific design spectra" is awarded.


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