4.3 Article

Surface Tension of Ethylene Glycol-Based Nanofluids Containing Three Types of Oxides: Zinc Oxide (ZnO), Magnesium Oxide (MgO) and Indium Oxide (In2O3)

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SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10765-022-03144-4

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Density; Ethylene glycol; Indium oxide; Magnesium oxide; Nanofluid; Surface tension; Zinc oxide

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The paper presents experimental results on the density and surface tension of ethylene glycol-based nanofluids containing zinc oxide, magnesium oxide, and indium oxide. The Du Nouy ring method was used to determine the surface tension values. Samples were prepared with mass fractions ranging from 0.01 to 0.05. The study found that the surface tension values remained constant within the examined mass fraction range, and an explanation for this behavior was provided.
The paper presents the results of an experimental study of the density and surface tension of ethylene glycol-based nanofluids containing zinc oxide, magnesium oxide and indium oxide. Du Nouy ring method was employed to determine the values of the surface tension of these nanofluids. Samples were prepared in various mass fractions from 0.01 to 0.05 with 0.01 step. Examination was performed in the temperature range from 283.15 K up to 318.15 K. The averaged surface tension values for the studied ZnO14-EG, ZnO25-EG, MgO-EG, In2O3-EG nanofluids at 298.15 K are 48.685, 48.471, 48.335, and 48.462 mNmiddotm(-1), respectively. It was presented that surface tension value could be consider as constant within the examined mass fraction of the particles, and the explanation of such behaviour was provided.

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