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The latest news about environmental and green
technologies – renewables, energy savings, fuel cells

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A new concept to improve power production performance of wind turbines in a wind farm

A modern wind farm usually consists of multiple wind turbines arranged in an organized pattern or array. Wake interferences among wind turbines have been found to affect the performance of the wind turbines significantly. Researchers studied the effects of relative rotation direction of wind turbines on the wake interferences among tandem turbines for improved power production performance of wind turbines in a wind farm.

Posted: May 23rd, 2014

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Green building wall filters impurities from air

Researchers have spent the past several years researching ways to harness plants' natural abilities to filter toxins out of the air into an application that could be used in indoor spaces like office buildings.

Posted: May 16th, 2014

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Dangerous nitrogen pollution could be halved

The most important fertilizer for producing food is, at the same time, one of the most important risks for human health: nitrogen. Ambitious mitigation efforts, however, could decrease the pollution by 50 percent. The analysis is the very first to quantify this.

Posted: May 13th, 2014

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CentRec - an innovative concept for solar tower power plants

In a new radiation receiver developed for solar tower power plants, ceramic particles of around one millimetre in size are heated to 1000 degrees Celsius. The particles are held in a drum inside the rotating receiver by centrifugal force, until they become hot enough to drive the steam turbine in a power plant, for example.

Posted: May 12th, 2014

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