Simulation of nanofluid as a two-phase flow in a distribution transformer

verfasst von

Leyla Raeisian, Peter Werle, Hamid Niazmand

Abstract

In this article, the natural convection heat transfer of Fe304/oil and graphene/oil nanofluids and mineral oil inside a 200 kVA distribution transformer is numerically studied. The Fe304/oil and graphene/oil nanofluids were simulated as a mixture two-phase flow where mineral oil was modeled as a single-phase flow with the temperature dependent thermophysical properties. Based on the simulation results, the nanoparticles when dispersed in oil enhance the convective heat transfer of oil and decrease its hotspot temperature. So that, the hotspot temperature of the Fe304/oil and graphene/oil were respectively 1 °C and 4.5 °C lower than that of the mineral oil. In addition, the transformer filled with graphene/oil nanofluid experienced considerably lower temperature in the thermally critical region. According to the obtained results, employing the nanofluid improves the cooling performance of the transformer, which leads to a more reliable operation and longer life.

Organisationseinheit(en)

Fachgebiet Hochspannungstechnik und Asset Management (Schering-Institut)
Institut für Elektrische Energiesysteme

Externe Organisation(en)

Ferdowsi University of Mashhad (FUM)

Typ

Aufsatz in Konferenzband

Seiten

258-261

Anzahl der Seiten

4

Publikationsdatum

06.2019

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Energieanlagenbau und Kraftwerkstechnik, Keramische und Verbundwerkstoffe, Elektrotechnik und Elektronik, Elektronische, optische und magnetische Materialien, Polymere und Kunststoffe, Oberflächen, Beschichtungen und Folien

Elektronische Version(en)

https://doi.org/10.1109/EIC43217.2019.9046609 (Zugang: Geschlossen)