Evaluation of Surfactants on Thermo-Physical Properties of Magnesia-Oil Nanofluid

Abstract:

The prime purpose of the current study was to investigate the consequence of surfactant on the kinematic viscosity, thermal conductivity, and stability of MgO-oil based nanofluid. Magnesia (MgO) nanoparticles were prepared by the wet chemical method. Structural and morphological analysis of synthesized nanoparticles were performed via X-ray diffraction (XRD) and Transmission electron microscope (TEM). Subsequently, nanofluid was prepared at a solid concentration of 0.025% in presence of various surfactants with the aid of ultrasonic technique. The impact of the different surfactants (Cetyl Trimethyl Ammonium Bromide (CTAB), Poly Vinyl Pyrrolidone (PVP), Poly Vinyl Alcohol (PVA), and Oleic Acid) on the nanofluid stability was tested. It was evident that CTAB and PVA surfactants establish the most stable prepared MgO-oil based nanofluid. The experiments revealed that the maximum UV–Vis absorbance of the solution corresponds to the dispersion of CTAB in the base fluid.

• Periodical: Materials Science Forum (Volume 928)
• Pages: 106-112
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.928.106
• Online since: August 2018
• Authors: Abdallah Yousef Mohammed Ali*, Ahmed Hassan El-Shazly, Marwa Farouk El-Kady, S.E. AbdElhafez
• Keywords: 20W-50 Engine Oil, MgO Nanoparticles, Stability, Surfactant, UV-Vis Spectra

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