Abstract
The GEOM research seedbed of the Universidad Distrital Francisco José de Caldas is developing low and medium power wind turbines, and here we present an advance. Wind energy is a very important source of renewable energy and an excellent alternative for the transition to sustainable energy that the world needs. It is known that horizontal axis wind turbines are more efficient energetically, and that the propeller is determinant for this efficiency; therefore, the correct geometric design of the propeller is essential for an optimum wind turbine. This article analyzes the most relevant aspects in the design of a wind propeller, using MATLAB® software to illustrate its behavior, and suggests an ideal airfoil for wind applications.
Highlights
IntroductionHumans have used the energy stored in moving air particles
Since ancient times, humans have used the energy stored in moving air particles
A wind turbine uses the kinetic energy associated to the movement of the wind particles impacting a propeller, which coupled with an electric generator produces a usable potential difference
Summary
Humans have used the energy stored in moving air particles. Wind energy was used daily since the invention of sailing ships; subsequently, it was used for different tasks such as grinding and pumping, which led, in the XVIII century, to developing machines with more elaborated models that incorporated certain aerodynamic parameters and mechanisms that improved their functioning. The energy present in moving air particles is so abundant that it could satisfy the world energetic demand. A wind turbine uses the kinetic energy associated to the movement of the wind particles impacting a propeller, which coupled with an electric generator produces a usable potential (voltage) difference. We calculate and simulate, using Matlab software, the optimum propeller for a low-power wind turbine that works at an average annual speed of 4-6 m/s, to show both the aerodynamic behavior and the main features of the blades. We suggest the reader to become familiar with the concepts of the momentum theory and fluid mechanics, among others, which are not explained here because it is out of the scope of this paper [3]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
