Experimental Investigation on Thermophysical and Stability Properties of TiO2/Virgin Coconut Oil Nanofluid
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Keywords:
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Nanofluid, Stability, Thermophysical, Titanium Oxide, Virgin Coconut Oil
Abstract
This paper shows experimental study results on the thermophysical and stability of nanofluids of Titanium oxide (TiO2) dispersed in high-purity of Virgin Coconut Oil (VCO). Nanofluid samples that functioned as a lubricant were prepared by a two-step preparation method at different volume fractions (0.1, 0.3, and 0.5 vol.%) and different temperatures (28, 40, and 100°C). The dynamic viscosity and density were performed using Falling Ball Viscometer and Pycnometer, respectively. The sedimentation photograph method using a digital camera was applied to analyze the stability. A maximum dynamic viscosity enhancement of 62.78% was recorded for TiO2/VCO nanofluid with 0.5% nanoparticle volume fraction and at the temperature of 100°C). Whereas, the highest density improvement was recorded for TiO2/VCO nanofluid with 0.5% nanoparticle volume fraction. Freshly prepared nanofluids did not show any significant change in stability. However, a trivial phase separation appeared in the samples after 8 days. The results indicated that adding TiO2 nanoparticles increased the dynamic viscosity and density. It can be concluded that the volume in fraction has the effect to enhance the thermophysical stability of TiO2/VCO nanofluids.
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Ahmadi, H., A. Rashidi, A. Nouralishahi, and S. S. Mohtasebi (2013). Preparation and Thermal Properties of Oil-based Nanofluid From Multi-walled Carbon Nanotubes and Engine Oil As Nano-lubricant. International Communications in Heat and Mass Transfer, 46; 142–147
Ali, A. R. I. and B. Salam (2020). A Review on Nanofluid: Preparation, Stability, Thermophysical Properties, Heat Transfer Characteristics and Application. SN Applied Sciences, 2(10); 1636
Azizie, N. A. and N. Hussin (2020). Preparation of Vegetable Oil-based Nanofluid And Studies on Its Insulating Property: A Review. Journal of Physics: Conference Series, 1432(1); 012025
Bhogare, R. A. and B. Kothawale (2013). A Review on Applications And Challenges of Nanofluids As Coolant In Automobile Radiator. International Journal of Scientific and Research Publications, 3(8); 1–11
Darminesh, S. P., N. A. C. Sidik, G. Najafi, R. Mamat, T. L. Ken, and Y. Asako (2017). Recent Development on Biodegradable Nanolubricant: A Review. International Communications in Heat and Mass Transfer, 86; 159–165
Deepak, S. N. and C. N. Ram (2021). Physio-chemical Study of Traditional Lubricant SAE 20 W40 and Virgin Coconut Oil Using TiO2 Nano-additives. Materials Today: Proceedings, 42; 1024–1029
Giwa, S. O., M. Sharifpur, M. H. Ahmadi, S. Sohel Murshed, and J. P. Meyer (2021). Experimental Investigation on Stability, Viscosity, and Electrical Conductivity of Water-based Hybrid Nanofluid of Mwcnt-Fe2O3. Nanomaterials, 11(1); 136
Harish, R. J. V. V. S. N., V. and P. C. N. Rao (2020). Experimental Evaluation of Vegetable Oil Based Copper Oxide Hybrid Nano Fluid As a Lubricant in Turning. Nanomaterials, 4; 5335–5358
Huminic, G. and A. Huminic (2018). Hybrid Nanofluids for Heat Transfer Applications–a State-of the-art Review. International Journal of Heat and Mass Transfer, 125; 82–103
Katpatal, D. C., A. B. Andhare, P. M. Padole, and R. S. Khedkar (2017). Study of Dispersion Stability and Thermophysical Properties of Cuo-jatropha Oil-based Nanolubricants. Journal of the Brazilian Society of Mechanical Sciences and Engineering, 39; 3657–3668
Kedzierski, M. A. (2013). Viscosity and Density of Aluminum Oxide Nanolubricant. International Journal of Refrigeration, 36(4); 1333–1340
Kedzierski, M. A., R. Brignoli, K. Quine, and J. Brown (2017). Viscosity, Density, and Thermal Conductivity of Aluminum Oxide and Zinc Oxide Nanolubricants. International Journal of Refrigeration, 74; 3–11
Kong, L., J. Sun, and Y. Bao (2017). Preparation, Characterization and Tribological Mechanism of Nanofluids. Rsc Advances, 7(21); 12599–12609
Kotia, A., P. Rajkhowa, G. S. Rao, and S. K. Ghosh (2018). Thermophysical and Tribological Properties of Nanolubricants: A Review. Heat and Mass Transfer, 54; 3493–3508
Kumar, P. M., K. Palanisamy, and V. Vijayan (2020). Stability Analysis of Heat Transfer Hybrid/water Nanofluids. Materials Today, 21; 708–712
Moldoveanu, G. M., A. A. Minea, M. Iacob, C. Ibanescu, and M. Danu (2018). Experimental Study on Viscosity Of Stabilized Al2O3, TiO2 Nanofluids and Their Hybrid. Thermochimica Acta, 659; 203–212
Mukherjee, S., S. Jana, P. C. Mishra, P. Chaudhuri, and S. Chakrabarty (2021). Experimental Investigation on Thermo-physical Properties and Subcooled Flow Boiling Performance of Al2O3/water Nanofluids in A Horizontal Tube. International Journal of Thermal Sciences, 159; 106581
Salimon, J., N. Salih, and E. Yousif (2010). Biolubricants: Raw Materials, Chemical Modifications and Environmental Benefits. European Journal of Lipid Science and Technology, 112(5); 519–530
Shafi, W. K. and M. Charoo (2018). Nanolubrication Systems: An Overview. Materials Today: Proceedings, 5(9); 20621–20630
Shahnazar, S., S. Bagheri, and S. B. Abd Hamid (2016). Enhancing Lubricant Properties by Nanoparticle Additives. International Journal of Hydrogen Energy, 41(4); 3153–3170
Sidik, N. A. C., M. N. A. W. M. Yazid, and R. Mamat (2015). A Review on The Application of Nanofluids In Vehicle Engine Cooling System. International Communications in Heat and Mass Transfer, 68; 85–90
Su, Y., L. Gong, and D. Chen (2016). Dispersion Stability and Thermophysical Properties of Environmentally Friendly Graphite Oil–based Nanofluids Used in Machining. Advances in Mechanical Engineering, 8(1); 1687814015627978
Wanatasanappan, V. V., M. Abdullah, and P. Gunnasegaran (2020). Thermophysical Properties of Al2O3-CuO Hybrid Nanofluid at Different Nanoparticle Mixture Ratio: An Experimental Approach. Journal of Molecular Liquids, 313; 113458
Xian, H. W., N. A. C. Sidik, and R. Saidur (2020). Impact of Different Surfactants and Ultrasonication Time on the Stability and Thermophysical Properties of Hybrid Nanofluids. International Communications in Heat and Mass Transfer, 110; 104389
Zawawi, N., W. Azmi, A. Redhwan, M. Sharif, and M. Samykano (2018). Experimental Investigation on Thermo-physical Properties of Metal Oxide Composite Nanolubricants. International Journal of Refrigeration, 89; 11–21
Authors
Oemar, B., Arifin, A., Bahrin, D., Astuti, Ramadhan, D. ., Rifqy, M. A., & Tinambunan, M. R. (2023). Experimental Investigation on Thermophysical and Stability Properties of TiO2/Virgin Coconut Oil Nanofluid. Science and Technology Indonesia, 8(2), 178–183. https://doi.org/10.26554/sti.2023.8.2.178-183
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