THE WATER FLOW MOVEMENT MODELING IN PASSIVE DISINTEGRATOR OF THE GRAIN MOLASSES’ INSTALLATION

Abstract

The equipment features’ studying is important because the volume of small and medium sized businesses related to dairy and meat farming in our country is growing. It is also important for the energysaving technologies’ developing and improving. Due to the grain’s high demand as a farm animals’ feed element, its processing technologies are being developed and widely used. In particular, technologies and technical means of grain molasses preparing have been developed. The scheme of grain molasses preparation and modeling conditions are given, water movement in a passive shredder’s modeling results are presented. This modeling in the Star CCM+ program was carried out. The water flow around two grids located at a distance equal to 100 and 200 mm was set; the pipe diameter d = is 30 mm, calculated section length - 1 m. At looking through the fields’ velocity and fluid flow’s lines in the shredder, it was revealed that the flow rates in both cases under consideration are almost identical. There is a velocity clear increasing when the liquid passes through the openings of the gratings and the water bends around the gratings up to a value of 23 m/s. The gratings’ presence in the shredder leads to network resistance and flow power loss’s increasing. The distance between the grids increasing allows to reduce slightly the resistance of the network (in 3%) and flow power’s loss (in 5%). The fluid motion’s given modeling has shown that the passive shredder scheme in the form of a circular tube with two grids installed in it can be considered ineffective due to the proposed device’s high resistances.