Abstract

The temperature dependence of the electrical conductivity and dynamic viscosity of jet fuels has been investigated for commercial jet fuels RT, TS-1, T-1, and T-6, all of which have initial crystallization temperatures below -60 degrees C. The data show that in the range from -35 degrees to +80 degrees C, for the RT, TS-1, and T-1 fuels, this relationship is linear, indicating constancy of activation energy for electrical conduction and the absence of any structural transitions in these fuels. For the T-6 fuel, a bend in the curve is observed at approximately 20 degrees C. This curve indicates a change in the activation energy for electrical conduction and a change in the mechanism of electric conductivity in the fuel. The authors investigate the effects of increases in conductivity of hydrocarbon fluids upon the introduction of additives.

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