Maghemite Nanofluid Based on Natural Ester: Cooling and Insulation Properties Assessment

verfasst von

Cristian Olmo, Cristina Mendez, Felix Ortiz, Fernando Delgado, Rafael Valiente, Peter Werle

Abstract

The objective of this work is to study the effect that the addition of magnetic nanoparticles to a natural ester has on its properties and its cooling capacity. Some samples of ferrofluid (natural ester with maghemite) have been prepared using different concentrations. These have been characterized by measuring their thermo-hydraulic and dielectric properties, to find an optimal concentration. Then, the cooling capacities of the optimal nanofluid and the base fluid have been tested in a transformer immersed in these liquids. The experimental platform allowed the measurement of temperatures in different locations at different load levels. Parallel simulations of these tests have been carried out with a Computational Fluid Dynamics model of the experimental platform. The results show an improvement of the insulating capacity of the base fluid with the addition of maghemite nanoparticles, and an enhanced cooling capacity.

Organisationseinheit(en)

Fachgebiet Hochspannungstechnik und Asset Management (Schering-Institut)

Externe Organisation(en)

Universidad de Cantabria

Typ

Artikel

Journal

IEEE Access

Band

7

Seiten

145851-145860

Anzahl der Seiten

10

ISSN

2169-3536

Publikationsdatum

17.10.2019

Publikationsstatus

Elektronisch veröffentlicht (E-Pub)

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Informatik (insg.), Werkstoffwissenschaften (insg.), Ingenieurwesen (insg.)

Elektronische Version(en)

https://doi.org/10.1109/ACCESS.2019.2945547 (Zugang: Offen)
https://doi.org/10.15488/10167 (Zugang: Offen)