ИССЛЕДОВАНИЕ ВЛИЯНИЯ ВОДНО-ТОПЛИВНОЙ ЭМУЛЬСИИ НА УРОВЕНЬ ВИБРАЦИИ ДИЗЕЛЬНОГО ДВИГАТЕЛЯ

Abstract

The article discusses the prospects of using water-fuel emulsions as the main fuel for diesel internal combustion engines. The purpose of the study is to determine the effect of the composition and quality of a water-fuel emulsion with a water content in diesel fuel on the vibration level of a YaMZ-236 diesel engine. A plant for the preparation of a water-fuel mixture from diesel fuel according to GOST 32511-2013 and distilled water according to GOST 6709-72 has been developed. A scheme of this experimental plant is presented, designed to prepare an emulsion directly on board an automotive vehicle with subsequent supply to the engine combustion chamber. Standard bench tests were carried out on the KI-5540 bench with a YaMZ-236 diesel engine and an upgraded fuel system. Registration of vibration parameters was carried out by vibrometer ASSISTANT V3. The studies were carried out by removing the vibroacoustic power during the operation of the YaMZ-236 engine on conventional diesel fuel and on a water-fuel emulsion containing 5%, 30% and 50% of the water component in its composition. As a result of the studies of the effect of a water-fuel emulsion on the level of vibration of a diesel engine, it was found that an increase in the water content to 50% in the composition of diesel fuel in the form of an emulsion with an average droplet size of the water component of no more than 2 microns does not significantly affect the level of engine vibration. It was found that the maximum increase in vibration level values by 0.4% occurs when the composition of the WFE is 30% of the water phase and 70% of the fuel, but this increase is insignificant and can be neglected.