Investigation on effects of different types of nanoparticles on critical parameters of nano-liquid insulation systems

The effects of insulative, semi-conductive and conductive nanostructured particles at various concentrations on critical parameters of Nano-Liquid Insulation (NLI) systems are experimentally investigated and the results are discussed in detail. In this study, liquid insulations such as Sunflower Oil (SO) and Rapeseed Oil (RO) as Natural Esters and conventional Mineral Oil (MO) as petroleum derived oil have been utilized as base fluid. Here, various nanostructured Magnetite (Fe3O4) as conductive nanoparticle, Zinc Oxide (ZnO) as semi-conductive nanoparticle and Silica (SiO2) as insulating nanoparticle are employed to investigate the influence of concentration and different types of nanoparticles in critical characteristics of base fluids. Experimental findings reveal that, the concentration and the types of nanoparticles make an impact in the performance of NLIs. The conductive nanoparticles based NLIs with higher concentration offer higher enhancement in performance characteristics compared to semi-conductive and insulating nanoparticles based NLIs. (C) 2017 Elsevier B.V. All rights reserved.