MODELING RHEOLOGY PROPERTIES OF WATER-FUEL OIL EMULSIONS AND WATER-COAL FUEL SUSPENSION

Abstract

Study viscosity - coefficient of internal friction at the movement and deformation of substance who belongs to rheology domain. Synthetic fuels based on petroleum and coal products, prepared in the form of emulsions and suspensions with water, manifested an non-newtonian rheological behavior, shear stress of them is not directly proportional with the velocity of deformation at shearing. In this moment did not exist an exactly theory of viscosity liquids. From existing theories for establish the temperature dependence of viscosity it was taken first of all on the relationship Frenkel in the presentation of Andrade. Rheological models the oil-water emulsions and the water-coal fuel suspension were established in the mechanical-electrical analogies, drawing- equivalent electric schemes, where inertial element is modeled with an inductance, the disipativ element - with a resistance and the elastic element -with a capacity.