7–10 Sept 2020
Europe/Zurich timezone
20. konference českých a slovenských fyziků

NANOFLUID BASED ON A NEW GENERATION OIL

9 Sept 2020, 16:50
30m

Speaker

Paulovičová K.

Description

Magnetic fluids belong to special nanomaterials with many application possibilities. One of
the fields of their use is the energy industry, where the demands on the performance of
electrical equipment are constantly rising. As a result, there is a need to use modern
insulation systems. Adding nanoparticles to conventional media could be one way to obtain
them. In this study, we focused on the complex characterization of potential magnetic
nanofluids based on isoparaffin hydrocarbons extracted from natural gas. These new
generation gas-to-liquid (GTL) derived electrical insulation fluids are cleaner, chemically
stable, and the thermal conductivity values ​​of these electrical insulating fluids are higher,
indicating improved heat transfer properties. For the preparation of magnetic nanofluids, we
used sterically stabilized nanoparticles of iron oxide with a volume fraction in samples in the
range of 0.3–3.0%. The saturation magnetization, magnetic susceptibility, density, and
viscosity were investigated showing a significant enhancement with an increase of the
volume fraction. Our experimental results show that the nanoliquid prepared on the basis of
the GTL technology has a stable colloidal character that is necessary for its application as a
potential cooling medium in electro-energetics.

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