Definition of aerodynamic characteristics wind turbine to Darrieus of system troposcino

Abstract

Abstract:Recently the majority show interest in connection with a number of merits to vertically-axial wind turbine type to Darrieus. It is possible to tell that age such wind energy installations of 25-30 years whereas others types wind turbine (sailing, propeller) have seriously started to study almost 1,5 centuries. The theory of these wind turbine with sufficient completeness are resulted in known E. M.Fateyev's monograph. In the present to article results of a theoretical substantiation for one of design kinds wind turbine are stated Darrieus -systems troposcino. This constructive form of the device to Darrieus becomes more and more popular. The general theory is constructed, almost all constructive and aerodynamic characteristics (linear speed, carrying power, front resistance are defined; wind power operating ratio; the moment of rotation of the turbine ) this device. Thus, attempt to put basic bases of the theory of devices to Darrieus of system troposcino is made. This report shows main theoretical principles of troposkino wind-turbine. Theoretically were determined dynamical characteristics of the wind-turbine, such as: rotation moment, power, useful wind energy coefficient and physical model of the plant. The theoretical results were compared with well-known experimental data.

Study of the heat exchange of a NASA-0021 wing profile with an incoming wind flow at different speeds and angles of attack

“…Методы активной защиты для эксплуатации требуют энергоснабжения и включают в себя термические, химические и пневматические методы, а также выступают в качестве систем продувки льда или антиобледенения [5].…”

Some Design Features of the Carousel Type Wind Turbine Bidarrieus

“…Also, the gyroscopic effect of a propeller wind turbine can lead to emergency situations [9]. More preferable are the carousel type Darrieus wind turbines, which have the symmetrical wing form NACA and operate on the lifting power of the blades [6,[9][10][11][12][13].…”

“…It can be seen that the total streamlined area is obtained is almost 2 times larger than in a conventional Darrieus wind turbine. As a result, the amount of wind energy used by wind turbines with an HBI rotor should increase by 2 times [6,7,13].…”

About High Efficiency of Two-Rotor Wind Power Unit Bidarrieus-2

“…But practice shows that the higher the capacity of wind farms, the wider the lifeless territory in these regions (birds, fauna, including the population, leave these places). Also, the gyroscopic effect of a propeller wind turbine can lead to emergency situations [9].…”

“…This also applies to the operation of wind power unit (WPU), for which the efficiency of the unit is determined by the efficiency of wind energy that is named as a power coefficient. The higher the value of this coefficient, the more effective is the economic and commercial value of the WPU [3][4][5][6][7][8][9][10][11].…”