How a ‘Swim Cap’ Could Extend the Life of Wind Turbine Blades

Exposure to sunlight, freezing temperatures and precipitation can erode the leading edge of wind turbine blades, shortening the life of the blade and reducing the productivity of the turbine overall. With turbine blades getting longer, from around 50 meters just a few years ago to 80 meters or more today, the force of natural elements working to degrade a blade’s leading edge has increased.


A Danish company believes it has found a solution. PolyTech&rsquo;s <a href="https://www.poly-tech.dk/industries/wind/leading-edge-protection/" >ELLE</a> (Ever Lasting Leading Edge) is a polyurethane shell applied to turbine blade tips. The product has been likened to a &ldquo;<a href="https://stateofgreen.com/en/partners/state-of-green/news/the-surprising-solution-to-erosion-of-the-tips-of-wind-turbine-blades-that-will-save-billions/" >swim cap</a>&rdquo; for turbine blades.


According to Mads Kirkegaard, PolyTech&rsquo;s CEO, the incumbent solutions on the market can be divided into two groups: paints or tape. But, he wrote in an email, these solutions are &ldquo;not working good enough in most areas. Paints have been developed slightly over time but do not deal <div class="post-limited-image"><img src="http://feeds.feedburner.com/~ff/GreentechMedia?d=yIl2AUoC8zA" border="0"></div>
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Design for 50MW Offshore Wind Turbine Inspired by Hurricane-Resilient Palm Trees

A team of researchers is working to complete the design for a novel 50-megawatt offshore wind turbine, nearly six times more powerful than a <a href="https://www.greentechmedia.com/articles/read/vattenfall-installs-worlds-most-powerful-wind-turbine#gs.yXR5VoA">record-setting 8.8-megawatt turbine recently deployed</a> off the coast of Scotland. Testing will begin on prototype blades this summer in Colorado.


The massive turbine marks an about-face from conventional wind turbine design. The standard wind turbine installed today is a three-bladed machine positioned with the blades facing incoming winds.


The blades for the so-called Segmented Ultralight Morphing Rotor (SUMR) wind turbine would, conversely, face downwind. The &ldquo;go-with-the-flow&rdquo; design was inspired by palm trees, which have evolved to withstand hurricane gales.


Just as palm fronds bend and yield to the direction of the wind, the segmented blades for the SUMR turbine will fold together, aligned with the wind direction, in strong winds.


&ldquo;We&rsquo;re trying to have the turbine blades be more aligned along the load path, so <div class="post-limited-image"><img src="http://feeds.feedburner.com/~ff/GreentechMedia?d=yIl2AUoC8zA" border="0"></div>
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Wind Tech Trends: Offshore Turbine Capacity Could Double in Europe by 2024

The wind industry’s push toward bigger machines shows no sign of slowing down in the coming years. If anything, the trend could speed up in some segments of the market.

MAKE Consulting's Global Wind Turbine Trends 2017 report, published at the end of last month, revises estimates for turbine growth upward compared to the 2016 edition.

The average rating of wind turbines worldwide is now expected to reach 2.8 megawatts by 2022, up from a prediction of around 2.5 megawatts a year ago. 

The revision comes after average turbine ratings beat expectations by around 200 kilowatts per machine in 2017, leaping from a mean expected rating of just over 2.2 megawatts to an actual power of more than 2.4 megawatts.

Unsurprisingly, turbine rating growth is highest offshore, particularly in European markets. 

MAKE forecasts modest growth in turbines deployed in the busy Chinese offshore market,

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Wind Tech Trends: Offshore Turbine Capacity Could Double in Europe by 2024

The wind industry&rsquo;s push toward bigger machines shows no sign of slowing down in the coming years. If anything, the trend could speed up in some segments of the market.


MAKE Consulting&#39;s <a href="http://www.consultmake.com/research/?rpid=10624#research" ><em>Global Wind Turbine Trends </em></a>2017 report, published at the end of last month, revises estimates for turbine growth upward compared to the 2016 edition.


The average rating of wind turbines worldwide is now expected to reach 2.8 megawatts by 2022, up from a prediction of around 2.5 megawatts a year ago.&nbsp;


<img alt="" class="modal" src="http://feeds.greentechmedia.com/content/images/articles/Wind_Turbine_Growth.png" style="max-width: 100%;" />


The revision comes after average turbine ratings beat expectations by around 200 kilowatts per machine in 2017, leaping from a mean expected rating of just over 2.2 megawatts to an actual power of more than 2.4 megawatts.


Unsurprisingly, turbine rating growth is highest offshore, particularly in European markets.&nbsp;


MAKE forecasts modest growth in turbines deployed in the busy Chinese offshore market, <div class="post-limited-image"><img alt="" class="modal" src="http://feeds.greentechmedia.com/content/images/articles/Offshore_Wind_Turbine_Sizes.png" style="max-width: 100%;" /></div>
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