Increasing power production of older wind turbines by increasing the length of blades


Increasing power production of older wind turbines by increasing the length of blades

 wind turbine

 
Recently, there has been a study done that suggests wind turbines have a life span of approximately 25 years. However, since the industry has been investing in research and development, wind turbines are continually being optimized to produce more and more energy. Some ways that companies are improving output is by refurbishing or improving upon older wind turbines already in field.
 
GE has recently increased power production of their older wind turbines by increasing the length of the existing blades. Why? Because a larger rotor diameter means there is less wind required to start spinning the blades and there is more area for wind to push against, which means greater force and rotational power.
 
Apparently, GE has been able to increase power production by as much as 20% with their patent pending blade lengthening system. They remove the 120’ blades from the wind turbine, cut them in half, and insert a 23’ extension in the middle of the old blade. This new process has yielded 16 separate patent applications for the corporation.
 
You can watch the video on the process here:
 
(You can see they’ve blurred out parts of the video that they don’t want you to see the details of)
 

Posted By Sally on May 28, 2014 | 0 Comment

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