Desarrollo de un prototipo de túnel de viento subsónico de circuito abierto para pruebas de perfiles de aspas para aerogeneradores.

Abstract

The main objective of this project is to develop a prototype of a wind tunnel for aerodynamic tests on blade profiles for wind generators in rapid prototyping manufactured by additive generation, since there is currently a great variety of types of blades that can be used in generators to transform wind energy into electrical energy. As each generator can work better or worse depending on the geographical or climatological conditions of the place where they are implemented, the development of a tool of this type can be useful for the selection or design of the appropriate generator for each place. In the development of this project we show the design, construction and instrumentation of a wind tunnel prototype with which, by controlling an air impeller, we can regulate and simulate the velocities of the air masses, so that the aerodynamic models generated by 3d printing can be subjected to different scenarios and observe the operation of wind turbines in a didactic way. Using sensors, embedded systems, power electronics and computational tools, a control system that regulates the rotational speed of the air impeller and, therefore, of the wind in the tunnel test area was created. Using 3D modeling and additive generation, a known airfoil model of blades for horizontal axis generators was analyzed and fabricated. Once the wind tunnel was built and the sensors and controllers were implemented, the instrumentation and blade profile behavior tests were performed.