asteroza + wind   309

Altaeros
Looks like they were previously pursing flying ducted wind turbine power generators, but pivoted to deployable tethered aerostat flying cellphone towers
aerostat  tethered  flying  wind  turbine  power  generator  cellular  base  station  tower  communications  startup 
5 weeks ago by asteroza
Ball Aerospace - OAWL- wind LIDAR
New compact wind LIDAR with long range, which in theory would allow a high altitude balloon to detect favorable wind directions and change altitude to maneuver, becoming effectively stationary.
wind  detection  LIDAR  DARPA  high  altitude  maneuvering  geostationary  stratellite  balloon 
november 2018 by asteroza
Team JMCC WING -Water Abundance XPRIZE Competition | Indiegogo
Some sort of low eight high torque wind turbine using fabric blades (and fabric duct), seems to use a pole/wire tensegrity structure
tensegrity  structure  high  torque  wind  turbine  power  generator  fabric  blade  atmospheric  water  fog  collector 
october 2018 by asteroza
O-Wind Turbine | James Dyson Award
Bizarre hybrid HAWT/VAWT to handle chaotic urban wind with substantial vertical and horizontal components with rapidly changing direction
crosswind  vertical  horizontal  vent  ball  wind  turbine  power  generator 
october 2018 by asteroza
Hybrid Solar Wind Turbine | Solar-Motion
They seem to have a VAWT version that looks like 3D printed mushroom, with battery storage in the base.
VAWT  wind  turbine  solar  PV  power  generator  battery  storage  hardware  electronics  devices 
april 2018 by asteroza
Inverted Aerobaking - a possibly cheaper concept to launch space ships from earth
So, um, this is basically expecting to fire gas from the moon to ddrag a vacuum cehile to orbital speeds. So an extreme case of a wind sail...
inverted  inverse  aerobraking  space  propulsion  popup  launcher  wind  drag 
march 2018 by asteroza
株式会社チャレナジー | Challenergy Inc.
Magnus effect blade VAWT. Mechanically linked rotation? Allegedly typhoon proof (probably since you can adjust "blade" lift factor by rotation rate to depower the thing)
VAWT  japan  wind  turbine  power  generator  magnus  effect  tube  blade  flettner  rotor 
march 2017 by asteroza
Spiral Magnus|MECARO|index|
uses magnus effect rotating tube blades rather than conventional blades
japan  wind  turbine  power  generator  HAWT  magnus  effect  blade  Delicious 
march 2017 by asteroza
KTH | Plasma could cut wind resistance for trucks
Electric plasma drag reduction, but for automotive applications, wouldn't physical mini vortex generator vanes/winglets be a better passive drag reduction scheme?
automotive  technology  aerodynamics  active  plasma  drag  reduction  truck  wind  resistance  electric  electronic  Delicious 
march 2017 by asteroza
Vestas Multi-Rotor Wind Turbine: 3 Blades Good, 4 Turbines Better
Yo, I heard you like wind turbines, so we put wind turbines on your wind turbines...
multiple  multi  wind  turbine  power  generator  tower  research  technology  multirotor  Delicious 
march 2017 by asteroza
Accio Energy
Uh, so releasing charged droplets from a wind permiated panel somehow generates large DC voltage differentials that can be harvested for power.
electrohydrodynamic  power  generator  ARPA-E  charged  mist  DC  green  energy  permiable  membrane  wind  offshore  buoy  marine  engineering  ocean  floating  Delicious 
december 2016 by asteroza
Sandia National Laboratories: News Releases : Enormous blades could lead to more offshore energy in U.S.
Interesting downwind turbine rotor blade design, that feather in high winds by bending out of plane like a palm tree leaf. Though how that bend works is a bit of problem, as it strikes me as a weak point.
exascale  wind  turbine  segmented  morphing  rotor  blade  feathering  downwind  materials  science  research  technology  Delicious 
january 2016 by asteroza
StrangeWorld - James Dyson Award
EV bike with self stored collapsible wind turbine to recharge in the outback. So MadMax doesn't need to go hunting for guzzoline...
MAdMAx  electric  motorcycle  vehicle  transportation  EV  integrated  foldding  collapsible  wind  turbine  solar  PV  power  generator  Delicious 
june 2015 by asteroza
World's largest floating wind turbine nearly complete in Fukushima, Japan
Notice that it's being setup near the fukushima exclusion zone, so local fishing cooperatives can't NIMBY veto the installation.
japan  offshore  floating  wind  turbine  power  generator  prototype  technology  research  marine  structure  fukushima  Delicious 
june 2015 by asteroza
WARP ENECO
The windage of the redirection plates plates is nontrivial, but this is somewhat interesting.
HAWT  venturi  wind  tubine  power  generator  concept  green  energy  Delicious 
april 2015 by asteroza
LTA windpower | Main Page
Interesting that they use hydrogen as their primary lifting gas (which is reasonable) as a way to defeat tether mass that has to be lifted, to allow higher altitudes. But, why can't you do something like GreenDiver with a hard inflated shell wing structure, with an inner lift gas cavity?
LTA  aerodyne  aerostat  kite  tethered  blimp  airship  airbone  wind  power  generator  green  energy  Delicious 
january 2015 by asteroza
An experimental study on the effects of relative rotation direction on the wake interferences among tandem wind turbines - Springer
Interesting result. Basically, if you close pack turbines, make sure you evenly mix clockwise/counterclockwise rotating turbines to exploit wake turbulence effects. Which sorta goes against the common practice of having all turbines in an array of the same type/rotation. I wonder what happens if the wind turbines are not single rotor, but dual rotor counterrotating turbines? Would the counterrotation cancel out the wake turbulence for downstream turbines, negating the effects?
wind  turbine  spacing  research  HAWT  CRWT  counterrotating  wake  turbulence  aerodynamics  Delicious 
june 2014 by asteroza
Home - The Archimedes
Some sort of weird spiral blade horizontal wind turbine, with an alleged 80% Betz efficiency...
HAWT  spiral  blade  achimedes  screw  wind  turbine  power  generator  green  energy  Delicious 
may 2014 by asteroza
DualWingGenerator | Festo Corporate
Weird flapping wing type wind power generator,reversing an ornithopter drive so it converts linear motion to rotary motion, then spins a conventional electric generator.
festo  dual  flapping  wing  wind  power  generator  green  energy  small  hardware  electronics  devices  researach  technology  Delicious 
april 2014 by asteroza
marcs international — 06_SENZ Umbrellas
apparently a high end wind resistant umbrella, with carbon fiber parts?
umbrella  wind  resistant  Delicious 
january 2014 by asteroza
Solar Wind Energy | A bold new approach to overcome the current limitations of conventional wind energy sources
Apparently these guys now have a patent for a solar wind downdraft tower (water droplet injection at the top). downdraft towers do work, but the energy balance to get water that high to begin with always seemed to make the net power output seem poor to me, plus the water consumption. Though the footprint is smaller than a updraft tower which requires a large solar heat collection canopy.
water  wind  tower  turbine  green  generator  power  downdraft  solar  energy  Delicious 
august 2013 by asteroza
SwissKitePower | a collaborative research and development project
Interesting lightweight approach to a jerking kite style wind power generator. The inflatable wing spar technique should in theory be applicable to flying wind turbine kites too, in theory anyways. Using a jerking system keeps the generator components on the ground, and uses a lighter tether, but nothing is really stopping them from using a carousel type spinning generator on the ground for continuous power output, provided they had multiple kites.
aerospace  wind  wing  europe  green  kite  EU  research  Switzerland  flying  tethered  inflatable  tether  Tensairity  power  generator  spar  energy  Delicious 
june 2013 by asteroza
4sphere Alternating Wake Rotors and Turbines | Alternating Wake Turbines and Rotors.
Some sort of really weird turbine rotor. Claims it is using an alternating wake to work. Rotor shaping is based on the same expanded sphere concept behind SharkWheels.
alternating  wind  turbine  wake  green  SharkWheel  power  generator  energy  Delicious 
june 2013 by asteroza
MODEC Develops Skwid Wind/tidal Hybrid Power Generation System -- Tech-On!
Weird 500KW hybrid wind/water turbine setup as an offshore buoy, possibly driving a common generator (but it must use gearing to have similar shaft speeds...)
demo  water  wind  hardware  buoy  turbine  offshore  green  darrieus  waterwheel  ocean  tidal  prototype  japan  skwid  current  power  generator  MODEC  hybrid  savonius  energy  windmill  Delicious 
march 2013 by asteroza
Seven Next-Generation Energy Technologies Showcased by ARPA-E | MIT Technology Review
Assorted ARPA-E projects. Georgia Tech's thermal updraft turbine, ostensibly to take advantage of dust devil conditions, is probably more suited as a wind turbine for solar updraft towers. The UV/IR specific transparent solar cell tech for windows is interesting too.
wind  technology  thermal  turbine  cell  IR  solar  research  ARPA-E  science  materials  updraft  power  generator  UV  Delicious 
march 2013 by asteroza
Govt aims to triple wind power : Business : DAILY YOMIURI ONLINE (The Daily Yomiuri)
Oh that's sleazy, forcing the wind power generators to basically underwrite half the cost of the transmission system upgrades to send power south from the cold windy northern prefectures that the local utilities and conventional power producers were totally unwilling to put up with the cost of putting in such transmission networks themselves. The interesting takeaway is the planned grid energy storage at major substations to even out wind power production. Sine the wind companies are forced to make their own independent transmission networks, I wonder if they will charge penalty fees on the local utilities to use the network, since they forced the capex onto the wind companies.
wind  distance  japan  green  grid  power  long  transmission  network  energy  storage  Delicious 
february 2013 by asteroza
Boulder Wind Power
Uses an oddball printed circuit board (PCB) based design for a super lightweight (fixed?) stator for the generator (I think the permanent magnet mounted rotor is the outer part of the torus). Definitely a weird direct drive permanent magnet configuration.
core  air  gap  axial  magnet  permanent  drive  direct  research  design  motor  energy  green  generator  power  turbine  wind  stator  PCB  lightweight  Delicious 
december 2012 by asteroza
timbertower.de
Apparently a low eco footprint wind turbine tower made of laminated wood.
spruce  materials  construction  footprint  CO2  energy  green  laminate  wood  polygon  tower  turbine  wind  Delicious 
november 2012 by asteroza
HARVISTOR
Looks like these guys are claiming some improvements on traditional darrieus turbine, by using foils that have active AoA pitch adjustment and some sort of double ended/reversible airfoil.
AoA  adjustment  control  angle  attack  pitch  airfoil  active  eggbeater  energy  green  microturbine  generator  power  turbine  wind  axis  vertical  Darrieus  VAWT  format  size  small  DARWIND5  Delicious 
october 2012 by asteroza
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