Experimental and Theoretical Studies of Thermophysical Properties of MgO-Water Nanofluid

Abstract:

Magnesium oxide (MgO) nanoparticles were synthesized using the sol-gel technique then characterized. Cetyl Trimethyl Ammonium Bromide (CTAB) surfactant was added to reduce Van der Waal forces among MgO nanoparticles and distilled water forming a stable nanofluid using two-step method with aid of ultrasound sonication. Pure distilled water and nanofluids with different volume fractions of 0.25, 0.5, 0.75, and 1% are used as working fluids. Thermophysical properties of prepared nanofluids were measured experimentally and determined theoretically. Effect of solid volume fraction on the thermophysical properties; including thermal conductivity, heat capacity, viscosity, and density of MgO-water nanofluids are discussed. Moreover, experimental results have been compared with the suitable correlations for MgO-water nanofluid. The findings show that thermal conductivity, viscosity, and density of nanofluid increases with increasing solid volume fraction.

• Periodical: Materials Science Forum (Volume 1008)
• Pages: 47-52
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.1008.47
• Online since: August 2020
• Authors: Abdallah Yousef Mohammed Ali*, Ahmed Hassan El Shazly, Marwa Farouk El-Kady, Hesham Ibrahim Elqady, Kholoud Madih, Essam Hares
• Keywords: Correlation, Magnesium Oxide, Thermophysical Properties, Volume Fraction

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