asteroza + concentrator   51

OSA | Luminescent detector for free-space optical communication
Facebook improving fresspace lasercomm receivers by doping optical waveguides with frequency shifter dyes to catch scintillation diffracted laser light for a wide field of view.
scintillation  effect  compensation  flourescence  flourescent  dye  doping  luminescent  concentrator  optical  fiber  wave  guide  waveguide  detector  large  FoV  optics  materials  science  research  technology  facebook  freespace  laser  communications  lasercomm  receiver  Delicious 
july 2016 by asteroza
Magnetic hyperbolic optical metamaterials : Nature Communications : Nature Publishing Group
New metamaterial allows conversion of wideband IR into enhanced narrowband IR, suitable for TPV and atmospheric heat rejection to space.
magnetic  hyperbolic  dispersion  metamaterial  materials  science  research  technology  nanotechnology  lens  filter  frequency  concentrator  IR  TPV  thermophotovoltaic  converter  narrowband  emitter  Delicious 
april 2016 by asteroza
Light Harvesting: Near-Infrared Harvesting Transparent Luminescent Solar Concentrators (Advanced Optical Materials 7/2014) - Zhao - 2014 - Advanced Optical Materials - Wiley Online Library
So collects and redirects NIR to the pane edge,where it can be converted to other wavelengths (regular IR) for a solar power generator to consume. Does near infrared now, seems possible to also to UV as well.
transparent  luminescent  edge  concentrator  solar  collector  optics  materials  science  research  technology  near  infrared  NIR  IR  organic  molecule  Delicious 
august 2014 by asteroza
Steam from the sun
So at 10x solar concentration, the surface cover composite sheet composed of the graphite flake thermal absorber/boiler coupled to an underlying buoyant porous carbon air foam, creates steam pretty well. I assume the insulating factor of the carbon air foam reflects more heat into the boiler region to improve efficiency, rather than letting heat travel through and warm the bulk water.
graphite  flake  porous  structure  carbon  foam  buoyancy  buoyant  composite  steam  generator  solar  thermal  green  energy  concentrator  concentrating  Delicious 
july 2014 by asteroza
IBM News room - 2013-04-22 Made in IBM Labs: Collaboration Aims to Harness the Energy of 2,000 Suns - United States
IBM integrated microchannel chip cooling used to make solar cell panels with integrated liquid cooling, rather than sandwiched to a primary heat exchanger backing the solar cell panel. Supposedly reduces pumping power costs.
chip  manufacturing  photovoltaic  technology  concentrator  thermal  CSP  cell  microchannel  CPV  solar  research  semiconductor  PV  HCPVT  IBM  cooling  generator  power  CHP  high  Delicious 
april 2013 by asteroza
ビームダウン式太陽熱集光装置( 太陽エネルギー ) - 三鷹光器株式会社
Interesting beam down double reflector/concentrator design, which keeps the operative focus point low to the ground. Though that does constrict your heliostat field design and sight angles, plus you will probably need to cool the upper mirror.
mirror  hardware  japan  concentrator  downward  generator  power  solar  double  heliostat  reflector  design  Delicious 
march 2013 by asteroza
Researchers Unveil Innovative Solar Cooling Project | University of California, Merced
Weird stationary non-tracking parabolic concentrating collector for solar thermal applications, primary a solar absorption chiller.
XCPC  external  compund  parabolic  collector  stationary  solar  thermal  concentrator  absorption  chiller  refridgerator  air  conditioner  research  green  energy  power  generator  Delicious 
october 2011 by asteroza
CSP Home - StratoSolar
This is so crazy it MIGHT work. But due to the physics properties of the lightpipe (particularly the number of allowable bounces), you are pretty much committed to the 163m diameter lightpipe for the 20Km altitude. So that means your initial prototype likely has to be at least 1GW. There's also the catenary bend issues of the lightpipe tether to deal with due to winds aloft. One could make the argument that if you are committing to such a huge vertical pipe, you could just as easily commit to a solar updraft tower using a buoyant chimney.
StratoSolar  stratospheric  balloon  dirigible  aerostat  buoyant  solar  concentrator  collector  light  pipe  lightpipe  tether  CSP  thermal  power  generator  green  energy  Delicious 
june 2011 by asteroza
Organic Solar Concentrators — Soft Semiconductor Group
Work on using luminescent dyes to redirect solar energy to PV cells on the edge of a flat plate waveguide.
organic  solar  concentrator  PV  design  optics  flat  plate  waveguide  dye  luminescent  LSC  power  generator  green  energy  thin  film  materials  science  research  Delicious 
june 2011 by asteroza
Sunengy Develops New Floating Liquid Solar Arrays to Maximize Energy Output of Hydro Plants | Inhabitat - Green Design Will Save the World
Interesting take on on concentrating solar PV. Covers chip cooling and transmission lines in one stroke by using hydroelectric dam reservoirs. It may be possible to line some of the open space in the frame to work as a partial water barrier, to reduce evaporative losses for dams in hot/dry climates.
Sunengy  LSA  liquid  solar  array  floating  fresnel  lens  concentrating  concentrator  CSP  power  generator  green  energy  Delicious 
april 2011 by asteroza
.:. Hyper Solar .:.
I think they are basically trying to sell a thin film prismatic lens array with spectrum waveguiding as an aftermarket upgrade to existing solar PV systems. Wait, now they are doing photoelectrochemical hydrogen production with the intent of synthetic natural gas production? Seems they are close to the magical 1.23V open circuit voltage needed for direct solar hydrogen production.
thin  film  optical  solar  concentrator  lens  array  CSP  CPV  addon  hardware  green  energy  PV  photonic  light  routing  separation  photoelectrochemical  nanostructure  artificial  photosynthesis  hydrogen  synthetic  fuel  methane  gas  production  materials  science  research  technology  nanotechnology  direct  high  voltage  cell  STG  Delicious 
february 2011 by asteroza
StratoSolar - Home
Crazy idea for a giant floating PV array. See also the related idea for a crazy giant CSP solar thermal concentrating lens balloon with lightpipe tether.
StratoSolar  stratospheric  balloon  dirigible  aerostat  buoyant  solar  collector  PV  tether  thethered  power  generator  green  energy  concentrator  CSP  Delicious 
february 2011 by asteroza
ZENA System Co., Ltd. | WIND TOWER Power Generation
I'm having a little trouble figuring out how they can get over the traditional Betz limit, since they do substantial direction shifting of the massflow through the concentrator intake tower. The advantage of having the turbine on the ground could be similarly done with a traditional wind turbine connected via a mechanical or hydraulic transmission to a ground generator though.
japan  wind  turbine  power  generator  concentrator  concentrating  tower  intake  array  green  energy  Delicious 
january 2011 by asteroza
Entech Solar
Did some research on SLA (stretched lens array) for space applications, but now focused on terrestrial solar
Entech  solar  SLA  stretched  fresnel  lens  array  optics  cell  power  generator  concentrating  CSP  CPV  PV  green  energy  concentrator  SOLAROSA  Delicious 
march 2010 by asteroza
Spectrum-splitting solar modules and Roadmap to 50% efficient Solar Cells
Interesting continuing research into the somewhat obvious ploy of using a optical spectrum splitter to separate light frequencies and send to them frequency optimized discrete solar cells, as a way to surmount the materials science problems of making stacked multijunction multispectrum optimized solar cells. If the light from the primary concentrator is being split by frequency, I wonder if you could do the trick of sending specific light bands left/right/down by using a double prism block? There is the overriding question of whether it would be cheaper to do the beam slitting before or after the concentrator?
high  efficiency  solar  cell  power  generator  materials  optics  science  research  technology  hardware  electronics  devices  green  energy  dichroic  prism  spread  spectrum  filter  light  beam  frequency  splitter  concentrator  concentrating  parallel  array  VHESC  Delicious 
october 2009 by asteroza
GreenSun Energy - Home page
Using edge concentrator prism tricks with fluorescent nanoparticle dye infused plexiglass as a kind of spectrum prism.
nanoparticle  plexiglass  glass  panel  plate  light  optics  redirection  edge  concentrator  flourescent  dye  solar  power  generator  green  energy  materials  science  research  technology  nanotechnology  Delicious 
september 2009 by asteroza
Cool Earth Solar: Reshaping Solar Energy
Hrm, I wonder if you could make an oversized air inflated structure to support long rows of these things in an airborne pattern, like a giant inflatable wall..
technology  green  energy  power  generator  plastic  solar  concentrator  aluminum  film  inflatable  concentrating  reflector  thin  cool  balloon  earth  CSP  pet  recyclable  Delicious 
february 2009 by asteroza

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