asteroza + offshore   199

MarineBiomass – The official home of Marine Bio Energy
Interesting work on offshore artificial kelp forests. Apparently will use depth cycling setups where the kelp is brought shallow during the daytime then sunk at night.
offshore  kelp  seaweed  farming  aquaculture 
8 weeks ago by asteroza
CalWave | Converting Waves into Electricity and Freshwater
Some sort of "wave carpet" planar absorber located below waves, emulating the damping ability of muddy sea bottoms.
wave  carpet  energy  converter  absorber  power  generator  marine  offshore  research  technology 
october 2018 by asteroza
Sorta doing the equivalent of vertical farming, offshore using submerged kelp frames and shellfish racks, with the frames deep enough to avoid ships?
kelp  seaweed  shellfish  farming  offshore  ocean  farm  marine  permaculture  food  production 
october 2018 by asteroza
Varyon Token Sale | Blue Frontiers
Wow, seasteading and an ICO? This will end in tears...
seasteading  offshore  platform  marine  engineering  cryptocurrency  ICO 
may 2018 by asteroza
MarineBiomass – The official home of Marine Bio Energy
Uh using variable depth buoy/submarine setups seems a bit overkill, could achieve most of the same result with a long pipe for a local deep ocean upwelling to bring the necessary nutrients to the surface. But open ocean kelp farming is an interesting concept itself.
macroalgae  offshore  kelp  farming  biomass  variable  depth  buoy  long  line  net  ocean 
august 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
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
Fishing vessel transformed into a wave power plant
So they recycled an old fishing boat, stuffed some OWC's with wells turbines and called it a day?
ocean  wave  power  generator  OWC  offshore  Delicious 
february 2015 by asteroza
Venice Offshore Port: Container barge transhipment
Looks like the Port of Venice is proposing an offshore port and a modern variant of LASH barges, using a short range FLO-FLO shuttle ship to carry a pair of 384 TEU cargo barges.
europe  italy  venice  port  harbor  offshore  cargo  terminal  container  transshipment  barge  lighter  marine  architecture  shipping  transportation  ship  vessel  Delicious 
october 2014 by asteroza
Ocean Thermal Energy Conversion
DCNS looks to be moving ahead with their OTEC work with a recent grant, compared to Lockheed Martin that seems to have given up in Hawaii after followup grants didn't materialize.
DCNS  OTEC  Martinique  ocean  thermal  power  generator  offshore  marine  structure  engineering  Delicious 
september 2014 by asteroza
Floating nuclear plants could ride out tsunamis
Rather than a spar buoy style, why not a FPSO hull and colocate a synfuel production facility using that new US Navy system?
offshore  spare  buoy  nuclear  reactor  power  generator  marine  structure  energy  floating  barge  design  concept  Delicious 
april 2014 by asteroza
Gyro Wave Power Generator - Gyrodynamics Co. Ltd.
Some kind of gyro torque based power converion wave power generator, using twin coupled gyros. But if it isn't using hydraulics to convert gyro frame mount torque to pressure power, then how is it generating power? Linear solenoid actuators?
marine  japan  buoy  offshore  gyro  wave  generator  power  ocean  Delicious 
april 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
Consortium aims to build megafloat / Oil and gas rig workers to live off Brazil coast : Business : DAILY YOMIURI ONLINE (The Daily Yomiuri)
200Km offshore means this is nominally a blue ocean offshore structure, not something that one would normally call coastal. Which means that this is not going to be similar to the megafloat runway that was built a while ago in Japan as a test of such hardware. This is going to be more like a seastead. So, perhaps more like a PSP barge setup then?
marine  seasteading  structure  megafloat  hardware  offshore  hub  J-DeEP  engineering  brazil  japan  base  seastead  logistics  Delicious 
february 2013 by asteroza "Energie-eiland" voor de kust van Wenduine
Belgium appears to be committing to an offshore pumped hydroelectric energy storage island in the North Sea, ostensibly to smooth out wind power supply and provide overnight storage. This in particular seems to be of the "hole in the ocean" variety.
structure  pumped  europe  offshore  green  sea  EU  north  hydro  island  facility  Belgium  hydroelectric  artificial  energy  storage  Delicious 
january 2013 by asteroza
NASA - OMEGA Project
Interesting idea of feeding effluent/wastewater/sewage into ocean floating clear tubes to make algae and clean the water. End run around the issues of fertilizer/nutrient feeds for algae production, algae growth medium location, facility structure cost and location, and nicely deals with the wastewater output of sewage treatment facilities.
NASA  OMEGA  offshore  membrane  enclosure  algae  floating  growth  pod  structure  tube  wastewater  sewage  recycling  green  energy  photobioreactor  bioreactor  production  Delicious 
september 2012 by asteroza
Seawater Engineering [Technologies and Innovation] - PENTA-OCEAN
Possible OTEC engineering work? At least sea water cooling and some deep ocean cold water stuff.
OTEC  deep  ocean  cold  water  intake  offshore  marine  structure  pipeline  hardware  Delicious 
september 2012 by asteroza
Sandia National Laboratories: News Releases
Interesting egg beater VAWT on a spar buoy concept, but if you are doing VAWT, wouldn't a helical gorlov turbine be better? Whether a spar, or a tension leg platform is better is up for debate, but a helical gorlov with a lower ring driving multiple smaller generators that also double as bearings to offload bearing torques on the center post (thus making the center post lighter), mounted on a three post tension leg offshore platform seems like win/win situation. Keeps the turbine light, increases redundancy (and provides scale economies) for the generator component, and isn't hideously complex. But, how to clear the the first 50 foot air layer where wind is weaker is an issue, one that HAWT addresses due to blade clearance issues.
offshore  wind  turbine  design  research  development  VAWT  vertical  axis  spar  buoy  Delicious 
august 2012 by asteroza
2012/07/12 14:27 - Hitachi To Develop 5mw Offshore Wind Farm
Interesting that they are developing a downwind turbine. While it may have natural pointing ability, their available information still indicates active yaw control, not passive. Reducing blade stiffness by avoiding the need to not strike the tower seems good to reduce cost, but there may noise issues from blade/tower interaction (which are mitigated due to being offshore).
energy  green  generator  power  turbine  wind  downwind  offshore  Hitachi  Delicious 
july 2012 by asteroza
China plans nuclear deep-sea mining base (Wired UK)
Uh, must be doing teleops for robotic recovery of seabed nodules (perhaps via daughter submersibles), because anything else would be easier to suck up to a surface barge
china  underwater  ocean  sea  seafloor  seabed  mineral  nodule  mining  nuclear  submarine  sub  hardware  electronics  devices  vessel  ship  transportation  platform  structure  offshore  marine  Delicious 
july 2012 by asteroza
Firms plan to build floating wind farm off Fukushima coast ‹ Japan Today: Japan News and Discussion
"experimental" means it will be a political mess. The only gain they have is probably locating it just off the coast from the reactor sites. Since there will few locals and fishermen to complain, and convenient transmission network access by colocating the power cable landing station with the reactor sites.
japan  fukushima  offshore  floating  wind  turbine  power  generator  green  energy  Delicious 
february 2012 by asteroza
One Per Cent: Green Machine: Storing wind power beneath the waves
This seems to be describing an underwater CAES setup, but I though the original concept was actually a pumped hydro based concept. Basically, a strong in compression concrete sphere has a positive displacement pump/generator placed on it, and pumps water out of the sphere at depth. This emulates a pumped hydro dam/lake/reservoir but with a huge hydraulic head. With a deep underwater CAES setup, you run the risk of the sphere becoming buoyant, which kinda defeats the secondary purpose of being an offshore floating wind turbine platform's anchor. Maybe it isn't actually CAES but a simple pressure regulation system to maintain minimum pressure to prevent excess vapor formation (and the risk of ice accumulation)?
CAES  ORES  ocean  offshore  renewable  energy  storage  concrete  sphere  pressure  differential  pumped  hydroelectric  power  generator  green  energy  grid  hydraulic  Delicious 
december 2011 by asteroza
Interesting spar buoy VAWT design. The bizarre concept of using an axial pump to fill the VAWT lower ring torus with water as a kind of kinetic energy storage for wind variability ride through, but which self drains the torus if the spin speed is too low, is kinda clever, but the structural weight to accomplish that is non-trivial. But won't this get hooked up on the Gorlov turbine patent?
SeaTwirl  offshore  floating  VAWT  wind  turbine  power  generator  green  energy  spar  buoy  water  torus  flywheel  Delicious 
september 2011 by asteroza
Japan plans floating wind farm near nuclear plant
METI is talking about offshore wind near the fukushima plant, since hardly anyone would be sane to fish near there anyways, removing the fisherman segment of the usual complainers. Using the nuclear plant as the landing station of the wind turbine array would make sense since a lot of power infrastructure is available and unused. This article seems to mention offshore floating turbines, but most other articles seems to specifically mention non-floating pile types.
japan  METI  offshore  wind  turbine  power  generator  green  energy  government  policy  fukushima  Delicious 
september 2011 by asteroza
SkySails GmbH - SkySails Power System
Interesting. A pull/retrieve power stroke based, figure 8 racetrack pattern autonomous flight pull stroke, offshore floating buoy based parafoil wing kite power generator system. System will need a rather large energy accumulator/battery/flywheel/capacitor to even out the energy output from an array of these though. Could do that at the array level, or at the individual buoys. Buoy based does not favor all electric flywheels (maybe CVT clutch coupled mechanical flywheels), clutched air compressor based systems would also work, capacitors probably would be undesirable though. That water pump spherical anchor may be favorable if using a TLP platform style pipe tendon for moorings
skysails  offshore  high  altitude  airborne  kite  parafoil  parasail  wind  power  generator  green  energy  germany  europe  EU  stroke  tether  pull  retrieve  cycle  Delicious 
september 2011 by asteroza
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