Mohammad Eskandari - H-Axis Wind Turbine Design

H-Axis Wind Turbine design with Blade Element Method (BEM)

In this project we designed a Horizontal Axis Wind Turbine, by considering all the data needed for having the highest efficiency for the project. We accurately chose the best site in Italy by considering the annual average wind velocity, National Regulations, environmental laws, NIMBY and etc. then we chose the best profiles from HUB to TIP of blades by analyzing the experimental data for it. then by using Glauert distribution and calculating all the needed data by MATLAB, such as: main Geometries, Fluid characteristics, Blade profiles, Reynolds, velocity triangles, lift and drag coefficients, and profile interpolation over the blade, we found the best chord distribution and pitch angle for our turbine.

In the next step, we linearized the chord distribution for having low cost of manufacturing. We used the optimal linearization method for having as much higher Cp as possible. So the results were as following:

Pitch Control and Regulation Strategies for Variable Wind Velocity (off-design regulation):

In this part of project we designed a control strategy for our turbine by controlling the rotational speed and pitch to feather control. We considered four different category for the wind velocity and for each part we had a related control strategy. After this step our Cp and Power was as following:

The benefits of winglets:

Finally we designed and analyzed different winglets for the tip of blades and we assessed performance of blade and noise reduction.

PS:

All The results and analysis extracted and done by MATLAB
Our project score was 28 out of 30, and it was among top ranked projects of course.
More information are available upon request
click HERE for downloading the presentation