Influence of Composition of Dielectric Liquid Mixtures on Electrostatic Charge Tendency and Physicochemical Parameters

Abstract

The paper presents research results on ECT (Electrostatic Charge Tendency) of hexane and toluene mixtures, that is dielectric liquids of a simple chemical structure and high purity (Pro analysi). The research tests are carried out in a spinning disk system, where the factors affecting the value of the electrification current registered are a varying composition of the mixture, rotational speed and a disk diameter. In the next stage physicochemical parameters are measured in order to determine the relationship between the properties of the mixtures under study and the electrification current generated. The research results show that the ECT of the mixture depends, to a large extent, on the proper selection of particular components.

Archives of Electrical Engineering

“…In the case of the mixtures of esters with aged mineral oil in the range from 10% to 80%, a significant decrease of electrification current takes place and after exceeding this level, its slight increase is observed. It is difficult to compare directly the investigation results of electrification of mineral oils as their susceptibility to electrification depends significantly on their chemical composition (the content of particular groups of hydrocarbons), which is shown in works [38][39][40]. Presently, there are no similar investigations published in specialist literature therefore there are no direct references in the paper.…”

“…The objective of the extensive research was to gain a thorough knowledge of the nature of the streaming electrification phenomenon and to find efficient means of reducing it. Mineral oils [12][13][14][15][16][17][18][20][21][22][23][24][25][26][27][28][29][30][31][32] and synthetic liquids [33][34][35][36][37], as well as pure hydrocarbons and their mixtures [38][39][40] were tested. Among others, the effect of hydrodynamic conditions [41], temperature [14,33,37,42], ageing processes [29,36,37,43,44] and properties of solid materials [37,45] were analysed.…”