Wind Energy

Wed, 12 Dec 2018 14:33:08 UTC

How plants can generate electricity to power LED light bulbs

Researchers have discovered that living plants are literally 'green' power source: they can generate, by a single leaf, more than 150 Volts, enough to simultaneously power 100 LED light bulbs. Researchers also showed that an 'hybrid tree' made of natural and artificial leaves can act as an innovative 'green' electrical generator converting wind into electricity.read more
Wed, 05 Dec 2018 19:27:24 UTC

Fine-tuning renewables could help Texas balance energy resources

A new study analyzes Texas' mix of wind and solar energy resources, and how to achieve better balance between them going forward.read more
Thu, 29 Nov 2018 15:00:36 UTC

New catalyst produces cheap hydrogen fuel

Chemistry researchers have discovered cheaper and more efficient materials for producing hydrogen for the storage of renewable energy that could replace current water-splitting catalysts.read more
Mon, 26 Nov 2018 18:43:17 UTC

Coordinated development could help wind farms be better neighbors

New research highlights a previously underexplored consequence: A wake effect from upwind wind farms that can reduce the energy production of their downwind neighbors.read more
Fri, 23 Nov 2018 18:51:37 UTC

Engineers fly first-ever plane with no moving parts

Engineers have built and flown the first-ever plane with no moving parts. Instead of propellers or turbines, the light aircraft is powered by an 'ionic wind' -- a silent but mighty flow of ions that is produced aboard the plane, and that generates enough thrust to propel the plane over a sustained, steady flight.read more
Fri, 09 Nov 2018 17:26:23 UTC

Making wind farms more efficient

With energy demands rising, researchers have completed an algorithm -- or approach -- to design more efficient wind farms, helping to generate more revenue for builders and more renewable energy for their customers.read more
Mon, 05 Nov 2018 15:54:48 UTC

Magnetic pumping pushes plasma particles to high energies

The solar wind is not a calm summer breeze. Instead, it is a roiling, chaotic mess of turbulence and waves. There is a lot of energy stored in this turbulence, so scientists have long thought that it heats the solar wind. However, the heating expected from turbulence is not the heating observed. Scientists now have a new idea about what heats the solar wind, a theory called magnetic pumping.read more
Thu, 11 Oct 2018 17:34:05 UTC

Opening communication lines between propulsion and airflow poses new questions

On the runway to more fuel-efficient aircraft, one alternative propulsion scheme being explored is an array of electrically powered ducted fans. The fans are distributed across the wing span or integrated into the wing. Researchers have gained new understanding in how the fans and especially their precise placement on the aircraft can affect the cross-conversation between propulsion and the airflow around the wing.read more
Thu, 04 Oct 2018 17:18:21 UTC

Windier wind farms

Depending on how wind turbines are situated relative to each other and to the prevailing wind, those not directly in the path of the wind could be left to extract energy from significantly depleted airflow. However, according to researchers, there are ways to get around this issue of diminishing wind returns.read more
Thu, 04 Oct 2018 15:25:53 UTC

Large-scale US wind power would cause warming that would take roughly a century to offset

Extracting energy from the wind causes climatic impacts that are small compared to current projections of 21st century warming, but large compared to the effect of reducing US electricity emissions to zero with solar. Researchers report the most accurate modelling yet of how increasing wind power would affect climate, finding that large-scale wind power generation would warm the Continental United States 0.24 degrees Celsius because wind turbines redistribute heat in the atmosphere.read more
Thu, 27 Sep 2018 14:56:47 UTC

Smart devices could soon tap their owners as a battery source

The world is edging closer to a reality where smart devices are able to use their owners as an energy resource, say experts.read more
Thu, 20 Sep 2018 14:16:05 UTC

Physicists train robotic gliders to soar like birds

Scientists know that upward currents of warm air assist birds in flight. To understand how birds find and navigate these thermal plumes, researchers used reinforcement learning to train gliders to autonomously navigate atmospheric thermals. The research highlights the role of vertical wind accelerations and roll-wise torques as viable biological cues for soaring birds. The findings also provide a navigational strategy that directly applies to the development of UAVs.read more
Thu, 06 Sep 2018 18:16:11 UTC

Large wind and solar farms in the Sahara would increase heat, rain, vegetation

Wind and solar farms are known to have local effects on heat, humidity and other factors that may be beneficial -- or detrimental -- to the regions in which they are situated. A new climate-modeling study finds that a massive wind and solar installation in the Sahara Desert and neighboring Sahel would increase local temperature, precipitation and vegetation. Overall, the researchers report, the effects would likely benefit the region.read more
Wed, 05 Sep 2018 16:47:47 UTC

Wind turbines: How much power can they provide?

Wind turbines could cover 40 percent of the current electricity consumption in Germany.read more
Tue, 04 Sep 2018 15:46:22 UTC

3D printed impeller allows unmanned aircraft to operate for thousands of hours

Engineers are developing a cooled, radial gas turbine for a small generator that provides thousands of hours of electricity to an unmanned aerial vehicle (UAV), a significant improvement to current UAV turbines that only operate a few hundred hours before wearing out.read more
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