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All Journal Jurnal Teknik Mesin International Journal of Innovation in Mechanical Engineering and Advanced Materials
Irwansyah, Dandi
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Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Energy Engineering Materials Science & Nanotechnology Mechanical Engineering

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Review of Improving Refrigeration Machine Performance by Adding Nanoparticles to the Refrigeration System Using Computational Fluid Dynamics (CFD) Simulation and Comparing it with Experimental Results Irwansyah, Dandi
Jurnal Teknik Mesin (Journal Of Mechanical Engineering) Vol 14, No 1 (2025)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/jtm.v14i1.18371

Abstract

In this journal, the author reviews the performance improvement of vapor compression refrigeration machines by adding nanoparticles into the refrigeration system using CFD simulation. This study aims to determine the improvement of refrigeration machine performance by adding nanoparticles into the refrigeration system using CFD simulation and to compare the simulation results with the experimental results. Where the method used in this study is a literature review. The results of the literature study show that the dispersion of nanoparticle additives can affect the increase in the refrigeration system performance coefficient (COP) and can maximize thermal conductivity, heat transfer coefficient, and other heat transfer characteristics so that it can produce lower power consumption. Using the CFD simulation method, the highest increase in refrigeration system performance was obtained through the simulation of SiO2 + R134a nano refrigerants with a volume concentration of 4% and an increase value of 22.58%. From the experimental results, the highest value was obtained by Al2O3 + R134a nano refrigerants with a volume concentration of 0.5% and an increased value of 30.85%. The system's performance showed a significant improvement with the addition of nanoparticles. Therefore, the performance of the refrigeration machine with the addition of nanoparticles in the refrigerant fluid is higher than the system using pure refrigerant fluid (without nanoparticles).
EFFECT OF SiO2 AND ZnO NANOPARTICLES TO INCREASE REFRIGERATION MACHINE PERFORMANCE Irwansyah, Dandi; Sundari, Rita; Anggraini, Rini; Arifin, Khuzaimah
International Journal of Innovation in Mechanical Engineering and Advanced Materials Vol 5, No 2 (2023)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijimeam.v5i2.21859

Abstract

In this investigation, the impact of silicon dioxide (SiO2) and zinc oxide (ZnO) nanoparticles on the performance of a refrigeration machine system was systematically examined. The focus was on evaluating the coefficient of performance (COP) concerning the utilization of a polyolester (POE) lubricant, R600a refrigerant, and distinct nanoparticles (SiO2 and ZnO) within the refrigeration system. The nanoparticles were individually introduced into the R600a refrigerant in masses of 0.5 g, 1.0 g, and 1.5 g. The experimental outcomes demonstrated a noteworthy enhancement in COP with the addition of nanoparticles. Specifically, the introduction of 1.5 g of SiO2 resulted in a substantial increase of 25.88% in COP, marking it as the most influential dosage. Similarly, the addition of 1.0 g of ZnO led to a significant COP increase of 13.6%, representing the optimal quantity for ZnO. Furthermore, the inclusion of 1.5 g of SiO2 brought about a remarkable reduction in energy consumption, with a decrease of 25.58%, while 1.5 g of ZnO resulted in a notable 16.28% decrease in energy consumption. The experimental configuration involved the use of 20 g of refrigerant and 500 ml of POE lubricant. Comparative analysis demonstrated that the refrigeration system incorporating nanoparticles outperformed the conventional R600a refrigeration system devoid of nanoparticles. This study contributes valuable insights into the potential enhancements in refrigeration system efficiency through the strategic incorporation of SiO2 and ZnO nanoparticles, offering a promising avenue for optimizing the performance of refrigeration technology.
Co-Authors Arifin, Khuzaimah Rini Anggraini, Rini Sundari, Rita