A consistent trend found in the manufacturing process of utility-size, horizontal-axis wind turbines throughout the years is the steady growth of the rotor diameter, which has led to a decreasing cost of wind energy conversion. However, while power conversion increases with the third power of the wind velocity, the aerodynamically generated noise may scale with the fifth or sixth power of the flow velocity. Thus, the noise associated with the ever-larger rotor diameter and higher local speeds due to increasing tower heights might impose limitations on the size of onshore-bound equipment in the future. This environmental restriction involves structural and material technical challenges already faced by the wind energy industry, which must meet challenging clean energy goals set by countries worldwide in order to fulfil greenhouse gas emissions limitations and global warming temperature limits proposed by the Paris Agreement and other subsequent sessions of the Conference of the Parties of the United Nations.
By Joseph Youssif Saab Jr and Alexandre Martuscelli Faria, Brazil
Every week on our website and in our email newsletter we want to show you that wind energy is more than just technology. We therefore invite you to send stunning pictures of wind turbines inspired by “light” (in the broadest sense of the word).
After 52 submissions we will announce the winner of the year’s best picture!
Email your photo to Include turbine model, location and name of photographer. (size of the published photo will be 336 px width x 280 px high).
Windtech International wants to make your visit to our website as pleasant as possible. That is why we place cookies on your computer that remember your preferences. With anonymous information about your site use you also help us to improve the website. Of course we will ask for your permission first. Click Accept to use all functions of the Windtech International website.