Design and Analysis of a H-Rotor Darrieus Turbine for Water Pumping Operation

Renewable energies as a clean replacement resource of fossil fuels have many advantages. One of these energies is the wind which already is very interesting source in the world. To use this energy, two kinds of turbines have been developed namely; the Vertical Axis Wind Turbine (VAWT) and Horizontal Axis Wind Turbine (HAWT). In small scale applications, using a VAWT has some advantages such as the lower cost and noise, simple mechanism, lower sensitivity to the wind direction. In this paper, the design and analysis of an H-Rotor (a VAWT type) is studied which can be used for water pumping operation. To this end, the Computational Fluid Dynamics (CFD) method is used to predict the output power. For simulations, ANSYS fluent and Q-Blade software programs are used. To simplify the rotor analysis, NACA symmetric airfoils are considered. The results show the deviation between ANSYS and Q-Blade predictions. Finally, the output power is calculated and also, the water flow rate for the pump is obtained.