A novel high performance diffuser design for small DAWT's by using a blunt trailing edge airfoil

Arturo Alanís, Jesus Alejandro Franco, Saul Piedra and Juan Carlos Jauregui

Abstract

This paper proposes a novel diffuser design for Diffuser Augmented Wind Turbines (DAWT) based on the blunt trailing edge airfoil AF300. Computational Fluid Dynamics (CFD) simulations are carried out to measure the performance of the AF300 diffuser against diffusers made with the shape of other high performance low wind speed airfoils. The results show that the proposed diffuser produces a greater air mass flow increase through the plane of the turbine than the other diffusers and it can be used to increase the performance of a horizontal axis wind turbine.

Key Words

DAWT; high performance airfoil diffuser; small wind turbines; CFD simulation

Address

Arturo Alanis:CIDESI-Centro de Ingeniería y Desarrollo Industrial, Av. Pie de la Cuesta No. 702, Desarrollo San Pablo, 76125, Qro, Mexico Jesus Alejandro Franco:CIDESI-Centro de Ingenieria y Desarrollo Industrial, Av. Pie de la Cuesta No. 702, Desarrollo San Pablo, 76125, Qro, Mexico/Escuela Nacional de Estudios Superiores Juriquilla, UNAM, Queretaro 76230, Mexico Saul Piedra :CONACYT-CIDESI- Centro Nacional de Tecnologias Aeronauticas Carretera Estatal 200 Querétaro-Tequisquiapan Km. 23, No. 22547, Colon, Qro. Mexico Juan Carlos Jauregui:Universidad Autonoma de Queretaro, Cerro de las Campanas S/N, Queretaro, Qro. Mexico

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