Voznyak O. Energysaving technologies of dynamic climate creation at limited conditions of industrial rooms

The dissertation is devoted to solving the actual scientific and applied problem of providing comfortable working conditions and energy saving achieving in air distribution in compressed conditions of the production premises. The task has been solved by creating a dynamic microclimate in the room and increasing the intensity of the attenuation of the velocity and temperature of the inflow air stream due to the interaction of counter non-coaxial jets and the effect of jets swirling and laying. Based on the analysis, methods and technical means for providing the necessary microclimate of industrial premises, energy saving providing are indicated, and a mathematical model is proposed. The above theoretical positions have been confirmed in the course of experimental research of air streams in industrial premises. Technical solutions are proposed for increasing the energy efficiency of ventilation systems due to the design of air distributors with the possibility of supplying air in a variable mode. For the first time a comprehensive 4D numerical simulation of the air flow in the room was carried out both in stationary and in variable mode. The method of determining the dynamic change in the distribution of the velocities of the stream, depending on both time and coordinates simultaneously, in the complex, is developed. The feasibility study of the proposed devices and the energy audit of energy costs for the needs of cooling air supply are carried out. To achieve the maximum effect, a rational degree of renovation of the air conditioning system, which is optimal both in heat engineering and economically, is determined.