Evaluation of electrical properties of graphene nanopowder-dispersed propylene glycol-water solutions

Abstract

Nanofluids, which are suspensions of nanoparticles in base fluids, have gained significant attention in recent years due to their enhanced thermal and electrical properties. In particular, propylene glycol-water nanofluids have been extensively investigated for their electrical properties. The primary goal of this study is to evaluate the electrical characteristics of nanofluids containing graphene powder distributed in propylene glycol-water. Compositions containing 100:0, 75:25, as well as 50:50 of Propylene Glycol as well as Water were created, along with other nano fluids. Both types of base fluids were infused with graphene at quantities of 0.25 as well as 0.5 percent, respectively. The assessment of electrical characteristics in nanofluids includes the analysis of parameters like breakdown voltage, permittivity, resistivity, and electrical conductivity. With the increase in the diameter there is an increase in the value of resistivity with the dispersion of graphene nano powder whereas breakdown voltage, permittivity and electrical conductivity have been decreased with the increase in the diameter. Overall with the dispersion of graphene in nano powder the electrical properties have been enhanced. Furthermore, it discusses the underlying mechanisms and provides insights into potential applications of propylene glycol-water nanofluids in electrical and electronic systems.

Electrical properties evaluation of corn oil biodiesel mixed with lubricant as a potential source of energy

“…In order to mitigate this constraint, scholars have undertaken investigations on the use of lubricants as additives with the aim of enhancing the electrical characteristics of biodiesel. The utilization of 20W-40T base lubricant as additives has been explored in light of their notable electrical conductivity and substantial surface area, as documented in previous studies [13][14][15][16][17][18]. In the present study [14] the impact of the base lubricant on the electrical characteristics of maize oil biodiesel has been examined.…”

“…The utilization of 20W-40T base lubricant as additives has been explored in light of their notable electrical conductivity and substantial surface area, as documented in previous studies [13][14][15][16][17][18]. In the present study [14] the impact of the base lubricant on the electrical characteristics of maize oil biodiesel has been examined. The intent of this study is to examine the electrical conductivity as well as dielectric strength associated with the fuel, both with and without the use of lubricating additives [15].…”