Picture of virus under microscope

Research under the microscope...

The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs.

Strathprints serves world leading Open Access research by the University of Strathclyde, including research by the Strathclyde Institute of Pharmacy and Biomedical Sciences (SIPBS), where research centres such as the Industrial Biotechnology Innovation Centre (IBioIC), the Cancer Research UK Formulation Unit, SeaBioTech and the Centre for Biophotonics are based.

Explore SIPBS research

Cavity initiation through an evaporating mechanism for the pulse breakdown in liquids

Atrazhev, V. and Vorobev, V. and Timoshkin, I. and MacGregor, S.J. and Given, M.J. (2009) Cavity initiation through an evaporating mechanism for the pulse breakdown in liquids. In: 17th IEEE International Pulsed Power Conference, 2009-06-28 - 2009-07-02.

Full text not available in this repository. (Request a copy from the Strathclyde author)

Abstract

This paper presents an analytical model which describes the dielectric strength of insulating liquids stressed with the impulse electric fields. The Joule heating by the space charge saturated current may cause over-heating of pure liquids or may result in generation of nucleation centers associated with impurities in the case of practical liquids. Evaporation of the liquid from these impurities has been analysed in the paper and formation criterion for percolation chains of gas bubbles in impure dielectric liquids has been established. Based on this percolation condition, the dielectric behavior of n-hexane has been studied. Breakdown volt-time characteristics of liquid n-hexane have been calculated for different temperatures, and its dielectric strength has been obtained as a function of externally applied pressure.