Creating a model of aerodynamic processes in a double turbine “ARSIRY” or wind power complexes

Abstract

The failure of power generation facilities or transformer substations leads to system failures with long-term power outagesof a significant number of consumers. To ensure the stability of the power system, it is necessary to develop distributed electricityproduction, which will be carried out by small power plants directly near the places of its consumption. The paper shows thepossibility of using wind turbines as one of the elements in distributed electricity generation complexes. A comparative analysis ofexisting samples and their operating conditions showed the shortcomings of existing systems. Despite the high perfection andefficiency of samples with a horizontal axis, they are not suitable for use in urban areas or heavily intersected terrain. Samples with avertical axis (Savonius and Darrieus turbines) have a low power factor. To overcome existing contradictions, a fundamentally newturbine with improved geometry was developed, the design of which allows the use of wind flow energy twice. Previous studies haveshown a significant improvement in the efficiency of combined wind turbines based on the “ARSIRY” type turbine and thepossibility of their use in wind conditions of relatively low quality (low speed, increased turbulence, frequent change in flowdirection, etc.). The use of the Bernoulli equation, which represents the sum of the three components of the specific energy of theflow in the form of the “total pressure” indicator, is justified for creating a model of aerodynamic processes in a double turbine of the“ARSIRY” type. Analysis of the features of air movement in the flow part of a double turbine using the equation provides anexplanation of the principle of double use of flow energy. The key importance of reducing the resistance of individual parts of theturbine for increasing turbine power through rational use of air velocity at a given value of the energy potential of the flows is shown.