Evaluation of structural conversions in jet fuels on the basis of electrical conductivity and viscosity

Abstract

The authors use both electrical conductivity and viscosity in detecting temperature-related structural changes in jet fuels, all of the fuels having initial crystallization temperatures below -60 degrees C. The existence of structural conversions in jet fuels is established at a temperature much higher. These data can be used in evaluating the contribution of structural conversions to the increase in viscosity. Structural conversions that give considerable increases in the viscosity of jet fuels can be avoided by the use of specially designed additives or by dilutions with a less viscous fuel.