Research Papers: Alternative Energy Sources

Optimizing Wind Turbine Efficiency by Deformable Structures in Smart Blades

[+] Author and Article Information
Jesus Alejandro Franco

Universidad Autonoma de Queretaro,
Cerro de las Campanas S/N,
Queretaro, QRO 76010, Mexico
e-mail: jfranco15@alumnos.uaq.mx

Juan Carlos Jauregui

Universidad Autonoma de Queretaro,
Cerro de las Campanas S/N,
Queretaro, QRO 76010, Mexico
e-mail: jc.jauregui@uaq.mx

Manuel Toledano-Ayala

Universidad Autonoma de Queretaro,
Cerro de las Campanas S/N,
Queretaro, QRO 76010, Mexico
e-mail: toledano@uaq.mx

1Corresponding author.

Contributed by the Advanced Energy Systems Division of ASME for publication in the JOURNAL OF ENERGY RESOURCES TECHNOLOGY. Manuscript received December 17, 2014; final manuscript received April 17, 2015; published online May 11, 2015. Assoc. Editor: Ryo Amano.

J. Energy Resour. Technol 137(5), 051206 (Sep 01, 2015) (8 pages) Paper No: JERT-14-1411; doi: 10.1115/1.4030445 History: Received December 17, 2014; Revised April 17, 2015; Online May 11, 2015

This paper presents a method for optimizing blade designs in smart rotors; the objective is to maximize power regardless of wind conditions. An extensive analysis of what is known as “smart blades,” from aeronautical solutions and helicopter rotors is provided. Moreover, trends in computational and experimental research are analyzed, an assessment and categorization of the options available for aerodynamic control surfaces are made. The study and analysis of its main components such as sensors, mechanisms of actuation, and materials are included. Advance research in this technology is presented as a potential solution for more efficient blade designs, and methods for reducing aerodynamic loads are discussed.

Copyright © 2015 by ASME
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Fig. 1

Shape morphing tendencies [15]

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Fig. 2

Smart blade concept [4]

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Fig. 3

Rigid trailing edge [14]

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Fig. 4

Flexible trailing edge [16]

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Fig. 5

Rigid leading edge [19]

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Fig. 9

Rotating annular stream tube: notation [43]

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Fig. 11

NACA families, camber deformation

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Fig. 12

Camber morphing as a function of wind velocity

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Fig. 13

Airfoils sections deforming

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Fig. 14

Search algorithm flow chart

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Fig. 15

Deformable blade versus fixed blade

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Fig. 16

(a) NACA 1112 @ 3 m/s, (b) NACA 3312 @ 5 m/s, and (c) NACA 6612 @ 8 m/s




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