Improving The Horizontal Axis Wind Turbine Blade Profiles

Yıl 2018, , 1432 - 1437, 01.10.2018

Cemil Yiğit

https://doi.org/10.16984/saufenbilder.417516

Öz

Due
to greenhouse gases, we feel the effects of global warming more and more every
day, so we need far more efficient Horizontal Axis Wind Turbines (HAWTs). This
study was carried out to develop turbine blades with higher momentum
coefficient (Cm) for the HAWTs. For this purpose, the blade profile that has
higher performance was improved using Taguchi and Computational Fluid Dynamics
(CFD) methods. With reference to the NACA 0012 profile, changing the upper and
lower cambers of the profile derived the new blade profiles. Using the Taguchi
method, the optimum blade profile with a maximum Cm coefficient was obtained.
After the profile to be used on the turbine blades is determined, the blades
are designed with the Blade Element Momentum (BEM) theory. A 3-dimensional
model for the HAWTs is developed using ANSYSv.16.2/Fluent Software. CFD
analyses were performed using a sliding mesh approach to get more realistic and
reliable results and to gain more knowledge of the performance. Numerical
analysis results show that power coefficient (Cp) of the optimum profile is
increased by 7.42% according to the NACA 0012 profile.

Anahtar Kelimeler

Horizontal Axis Wind Turbine (HAWTs), Blade design, Taguchi Method, Computational Fluid Dynamics (CFD), Sliding Mesh, Sliding Mesh

Kaynakça

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