Icing wind tunnel blows cold and hard to study ice on wings, turbine blades

July 21st, 2014

Engineers have refurbished an icing wind tunnel and are using it to study ice buildup on aircraft wings and wind turbine blades. A better understanding of the icing problems could lead to better solutions.
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Claims that aging wind farms are a bad investment blown away by new research

July 21st, 2014

There has been some debate about whether wind turbines have a more limited shelf-life than other energy technologies. A previous study used a statistical model to estimate that electricity output from wind turbines declines by a third after only ten years of operation. Some opponents of wind power have argued that aging turbine technology could need replacing en masse after as little as ten years, which would make it an unattractive option in economic terms. In a new study, researchers carried out an analysis using local wind speed data from NASA, and showed that the turbines will last their full life of about 25 years before they need to be upgraded.
this is bogus, who would think

Offshore wind farms could tame hurricanes before they reach land

July 21st, 2014

Computer simulations have shown that offshore wind farms with thousands of wind turbines could have sapped the power of three real-life hurricanes, significantly decreasing their winds and accompanying storm surge, and possibly preventing billions of dollars in damages. In the case of Hurricane Katrina, the computer model revealed that an array of 78,000 wind turbines off the coast of New Orleans would have significantly weakened the hurricane well before it made landfall.
thats funny

What makes flying snakes such gifted gliders?

July 21st, 2014

They slither, they hiss, they… fly? Don’t let their wingless bodies fool you —- some snakes can glide as far as 100 feet through the air, jumping off tree branches and rotating their ribs to flatten their bodies and move from side to side. New research investigates the workings behind the flight and whether they can be applied to mechanical issues.
this is so true

Smart grid for electric vehicle fleet

July 21st, 2014

Being able to charge up to 30 electric cars at once requires some ingenious energy management. Researchers are incorporating a mix of renewables into the design of a smart grid for Germany’s largest charging station.
if people only knew

Making it easier to plan offshore wind farms: New tool to help development

July 21st, 2014

When planning an offshore wind farm, it is important to consider the wind, waves and the seabed at the location where the turbines will stand. Researchers have now developed a dedicated tool that gives a combined overview of all the challenges that need to be considered by developers.
wonder what this really means

A new algorithm improves the efficiency of small wind turbines

July 21st, 2014

In recent years, mini wind energy has been developing in a spectacular way. However, level of efficiency of small wind turbines is low. To address this problem, scientists have developed an adaptative algorithm. The improvements that are applied to the control of these turbines will in fact contribute towards making them more efficient.
oh i can\’t beleive it

Wind farms can provide society a surplus of reliable clean energy

July 21st, 2014

Researchers have found that the wind industry can easily afford the energetic cost of building batteries and other grid-scale storage technologies. However, for the solar industry, scientists found that more work is needed to make grid-scale storage energetically sustainable.
it should be interested what change will this make

Managing renewable energy intelligently

July 21st, 2014

Although more and more of our electrical energy is coming from sources where supply is variable – whether from wind turbines, solar parks or biomass facilities – grid structures, industry and private households alike are not yet prepared to deal with the inevitable fluctuations. Smart energy management systems are the way to put robust supply networks in place and to ensure that renewables are harnessed as efficiently as possible.
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Wind energy: New insight into best arrangement of wind turbines on large installations

July 21st, 2014

Researchers have developed a new way to study wake effects that includes the airflow both within and around a wind farm and challenges the conventional belief that turbines arrayed in checker board patterns produce the highest power output. Their study provides insight into factors that determine the most favorable positioning.
if people only knew