asteroza + parabolic   21

SolSource | Ultimate Solar Cookers for Cooking Anything Under The Sun
So, they apparently have a patent on a very low cost coating system to get those mirrors
solar  stove  cooking  parabolic  dish  low  cost  mirror  patent 
12 days ago by asteroza
Black Sun Planetary Solutions
Interesting collector design, based on on a blackbody cavity concept. Reduces costs since it doesn't use a vacuum tube receiver core, along with a low precision tolerant mirror reflector geometry. Seems to still require single axis tracking though, but 10 degrees is a lot easier to implement via ratchet mechanisms rather than continuous jackscrews.
CSP  concentrating  solar  thermal  power  generator  blackbody  cavity  parabolic  reflector  collector  design  green  energy  funnel  CPV  Delicious 
december 2013 by asteroza
One Earth Designs
Apparently they have 2 patents on a 3D formable polymer mirror with 90% reflectivity (in visible/IR?)
polymer  technology  parabolic  hardware  solar  research  reflector  science  mirror  gril  gear  materials  camping  cooking  survival  cooker  Delicious 
july 2013 by asteroza
Airlight - Home
Oddball mix of inflatable mirror/lens assembly mounted on a lightweight fiber reinforced concrete frame. Essentially makes a closed, slightly pressurized container for the energy production components, to protect them from rain and air contamination. Though the ETFE film getting discolored due to age/exposure reducing power output might be a problem. The collector is universal, in the sense that the central core receiver can be either the CSP type using pressurized air for the heat transfer fluid (which nominally gets dumped through a gravel tank for heat storage), or a water cooled CPV receiver. Recently did work with IBM using IBM chip semiconductor manufacturing techniques to make CPV water cooled solar cell panels with integrated cooling in the silicon.via microchannels.
photovoltaic  linear  support  parabolic  thermal  CSP  green  assembly  trough  concentrating  CPV  solar  mirror  PV  inflatable  generator  power  energy  Delicious 
august 2012 by asteroza
Encoding many channels on the same frequency through radio vorticity: first experimental test
New trick of adding vortex twist rather than traditional polarization to a signal to boost encoding for a single frequency. The requirement for what appears to be a directional helicoidal parabolic antenna ( does this mean the antenna needs to be a few wavelengths in depth?) means no love for mobile omnidirectional antennas though.
radio  vorticity  vortex  twisted  transmission  helical  OAM  SAM  polarization  encoding  helicoidal  parabolic  antenna  physics  EM  EMF  research  Delicious 
march 2012 by asteroza
World's top solar power plan switches on
There's been rumblings about DESERTEC trying to cut out some North African countries that are "unfavorable" to certain capital agreements to bankroll powerplant construction.
DESERTEC  Morocco  Quarzazate  solar  thermal  power  generator  north  africa  green  energy  parabolic  mirror  supergrid  Delicious 
november 2011 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
Solar Cogeneration, Cogen, Power, Hot Water | Cogenra Solar
Basically this is a water cooled combined heat and power CHP concentrating solar PV trough design that recovers PV coolant heat for domestic hot water use. The low cost innovation seems to be the fresnel lens style segmented flat panel parabolic glass mirror array that makes up the trough, since flat mirrors in long planar sheets are cheap. New version also does AC via an adsorption chiller
photovoltaic  thermal  trough  concentrating  heat  cogeneration  trigeneration  cooler  cooling  power  generator  Cogenera  CHP  fresnel  parabolic  chiller  CSP  HVAC  green  solar  adsorption  reflector  combined  AC  PV  hybrid  energy  Delicious 
november 2010 by asteroza
Enel Inaugerates Molten Salt Thermal Energy Storage System for Archimede Solar Thermal Power Plant « Solar Thermal Magazine
Apparently this is a parabolic trough type solar thermal plant with molten salt in the collector tubes, which is a first apparently. I wonder how they keep the salt from freezing in the tubes at night? Do they drain it, or accept the losses associated with keeping it molten directly in the tube at night? They mention a combined cycle plant, so maybe they vampire heat from the plant to keep the salt hot?
molten  salt  heat  transfer  working  fluid  parabolic  trough  collector  CSP  concentrating  solar  thermal  power  generator  green  energy  Delicious 
july 2010 by asteroza
A nice little system using LED lighting to also transmit data, combined with a custom small form factor retroreflector/receiver (not much bigger than existing IRda sensors). They are also doing PLC and DC PLC work, so that the overhead lamp assembly contains not only the LED and transmitter encoding circuits, but also a PLC modem for transmitting data over the power supply circuit so you can retrofit into exisitng lighting systems without running new data cables.
LED  overhead  lamp  lighting  light  japan  communication  optical  transmission  wireless  hardware  electronics  devices  parabolic  compact  retroreflector  reflector  receiver  technology  DC  PLC  data  modem  Delicious 
june 2010 by asteroza

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