SELECTION OF MICRO WIND TURBINE BLADE DESIGN BASED ON SYMMETRIC NACA 4-DIGIT AIRFOILS

Sanjay Kumar, Abhishek Verma, Yajvender Pal Verma, Amarjeet Singh

DOI Number
https://doi.org/10.2298/FUEE2502277K
First page
277
Last page
288

Abstract


Wind power has become a key component for electrical power generation to develop sustainable energy sources. Empowered by the landmark NACA 1933 report on symmetric airfoils, this research paper sets out to revive a historical legacy in aerodynamics by measuring the impact of chord-wise thickness variations on the lift and drag characteristics of symmetric NACA 4-digit airfoils. This study aims to examine the performance of a micro wind turbine that has been expressly developed for rooftop application, where wind speeds are generally low. In the present study, 6 symmetrical designs of the air profile of NACA are taken. Then their characteristics like lift, drag lift and lift-to-drag ratio w.r.t. various angles of attacks have been compared for each profile using Xfoile Software. Finally, it was found the NACA 0025 at ReY No. 106 offers the best lift of 90 with an angle of attack in range of -8.75̊ ⁰-10.7 & ratio of lift to drag is 68.9.


Keywords

Wind turbine, Airfoils, aerodynamics, NACA, Wind speed.

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References


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