News tagged with rotor speed

Tilting at wind farms

A way to make wind power smoother and more efficient that exploits the inertia of a wind turbine rotor could help solve the problem of wind speed variation, according to research published in the International Journal of ...

Technology / Engineering

created Jan 07, 2009 | popularity 4.9 / 5 (10) | comments 4




Search results for rotor speed


German engineers mimic humpback whale to increase helicopter stability

(PhysOrg.com) -- Whale researchers have known for some time that humpback whales are able to perform feats of underwater acrobatics that belie their huge size and that some of that ability is partly due to ...

Technology / Engineering

created Feb 01, 2012 | popularity 4.7 / 5 (13) | comments 5 | with audio podcast report

Power generation is blowing in the wind

(PhysOrg.com) -- By looking at the stability of the atmosphere, wind farm operators could gain greater insight into the amount of power generated at any given time.

Technology / Energy & Green Tech

created Jan 17, 2012 | popularity 4.8 / 5 (8) | comments 10 | with audio podcast

Zero Motorcycles debuts electric motorcycle with 100-mile range and improved speed

Zero Motorcycles recently unveiled the first mass-produced electric motorcycle capable of traveling more than 100 miles, breaking down one of the long-standing obstacles to consumer adoption.

Technology / Energy & Green Tech

created Nov 18, 2011 | popularity 5 / 5 (6) | comments 10

Tiny battery is also a nanomotor

(PhysOrg.com) -- Measuring just 3.6 micrometers long, one of the smallest batteries ever made won’t be powering our electronic devices anytime soon, but it does serve as a self-powered nanomotor that ...

Nanotechnology / Nanophysics

created Oct 19, 2011 | popularity 4.4 / 5 (7) | comments 0 | with audio podcast feature

Eurocopter demonstrates new emergency backup electric motor for helicopters

(PhysOrg.com) -- Normally, when a helicopter loses power in flight due to engine failure, the pilot reverts to using a technique called autorotation to avoid crashing. What happens is the rotors keep spinning ...

Technology / Engineering

created Oct 14, 2011 | popularity 4.6 / 5 (10) | comments 10 | with audio podcast report

New imaging techniques reveal the workings of supramolecular nanomachines

Supramolecules comprising many kinds of proteins and nucleic acids are present in all living organisms. Often with precise structures and a variety of parts, these supramolecules exhibit complex movements ...

Chemistry / Analytical Chemistry

created Jul 25, 2011 | popularity 5 / 5 (2) | comments 0

Computer model optimizes wind farm

A new software from Siemens will improve wind farms’ energy yields and extend their service life. When the wind causes the huge rotors to turn, it generates turbulence, which interferes with the operation ...

Technology / Energy & Green Tech

created Jul 25, 2011 | popularity 5 / 5 (1) | comments 1

Wind-turbine placement produces tenfold power increase, researchers say

(PhysOrg.com) -- The power output of wind farms can be increased by an order of magnitude -- at least tenfold -- simply by optimizing the placement of turbines on a given plot of land, say researchers at the ...

Technology / Energy & Green Tech

created Jul 13, 2011 | popularity 4.8 / 5 (11) | comments 12 | with audio podcast

The way has been cleared for mega wind turbines of 20 MW

The present largest wind turbines have a capacity of 5-6 MW. Following five years of research at the joint European project UpWind, led by Risoe National Laboratory for Sustainable Energy, the Technical University of Denmark ...

Technology / Energy & Green Tech

created Apr 15, 2011 | popularity 5 / 5 (6) | comments 3

Lab focuses on new technology to prevent icing on planes, helicopters

A little rain or fog may seem like an insignificant threat to a helicopter or airplane. But minor clouds and precipitation can be the cause of canceled flights -- or fatalities.

Technology / Engineering

created Apr 07, 2011 | popularity 5 / 5 (1) | comments 0


List of search results for rotor speed