ULTRASOUND: ADVANTAGE FOR APPLICATION AND TECHNICAL MEANS

Abstract

The purpose of research is to evaluate the effectiveness of ultrasound for the treatment of components of diesel mixed fuel (DMF).Ultrasonic vibrations can change the aggregate state of a substance, disperse, emulsify it, change the rate of diffusion, crystallization and dissolution of substances, activate chemical reactions, intensify technological processes. The use of ultrasonic vibrations in the treatment of liquid media gives them new proper-ties, which lead to the widespread use of ultrasound in various industrial processes. Currently, biological fuels are widely used as motor fuel in diesel engines of automotive engineering. One of the types of liquid biological fuels is diesel mixed fuel (DMF), the components of which are commercial oil diesel fuel and any vegetable oil produced from oilseeds (canola, ginger, oil radish, flax oil, wood, white mustard, soybean, Abyssinian crab, etc.). For the mix-ing of oil and vegetable components directly «on Board» of automotive equipment, static mixers are usually used, which do not fully provide high-quality mixing of components and processing of DMF by ultrasound. The ultrasonic mixer developed and manufactured by the authors due to high-frequency oscillations of the piezoe mitter allows not only to mix biological and oil components of the mixed fuel qualitatively, but also to process them by ultrasound with a radiation frequency of 25 kHz to obtain a homogeneous fine composition, which leads to a smaller decrease in engine power and a smaller increase in the specific effective consumption of the mixed fuel compared to the operation of the diesel on the untreated ultrasound mixed fuel.