Determination of the effects of the diameters of the throttle holes on the fluid flow of an inertial hydrodynamic installation

Abstract

In the article, in order to solve environmental problems associated with heating buildings and structures, the methods of converting electrical energy into thermal energy and the processes occurring at the same time are considered. Well-known thermal installations, such as vortex, cavitation, cavitation-vortex, rotary, do not fully meet the requirements of consumers. In these conditions, the search for effective solutions is an urgent task. Such solutions include a method of obtaining thermal energy by creating pressure at the throttle openings by inertia forces of a rotating mass of liquid. To determine the flow of liquid through the throttle holes, an experimental stand was made. With the help of the stand, we determined the flow rate of liquid through throttle holes with a diameter of 1.5, 2, 3 mm. During the experiment, it was found that the larger the diameter of the throttle opening, the higher the fluid flow. However, it is impossible to excessively increase the diameter of the throttle opening, as this will complicate the creation of pressure at the throttle openings. It is found that with an increase in the angular velocity of the rotor, the fluid pressure at the throttle openings increases, and the proportion of fluid flow from the preliminary static pressure in the total flow decreases. It is certain that the preliminary static pressure in the supply line has a significant effect on the flow rate only at low rotor speeds ( up to = 76 rad / s), and with increasing angular velocity, its influence decreases and the coefficient k tends to 1.