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Key factors enhancing the electrical properties of nanofluids. A mini-review of the applications in the energy-related sectors

Boiko Oleksandr, Stryczewska Henryka Danuta, Komarzyniec Grzegorz Karol, Ebihara Kenji, Aoqui Shin-Ichi, Yamazato Masaaki, Zagirnyak Mykhaylo

Archives of Electrical Engineering

2024

Vol. 73, nr 4

1137--1160

The article presents a mini-review of key factors significantly affecting the electrical properties of nanofluids. One-step and two-step approaches, together with examples of vacuum sputtering-based techniques, chemical reduction, and mechanical mixing techniques, were explained. The crucial factors enhancing the electric and dielectric responses, such as nanofiller concentration, its type, geometry, uniformity of distribution in the base liquid as well as the base liquid’s type, temperature, chemical stability, etc., were analyzed. Special attention was paid to the impact of the parameters on electrical conductivity, permittivity, and dielectric losses. The selected models for nanofluid’s conductivity prediction have been presented. The potential and implemented applications of nanofluids in the energy-related industry branches with reference to their electrical properties have been reviewed. Examples of applications in power transformers, solar cell production processes, nanoelectrofuel flow batteries, and other electrotechnologies have been analyzed.